TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Aleksandar
AU  - Stijepović, Mirko
AU  - Putić, Lana
AU  - Žák, Tomáš
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4747
AB  - In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a superparamagnetic fraction with very small crystallite sizes (<13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
T2  - Metallurgical & Materials Engineering
T1  - Synthesis of NiFe2O4 nanofibers by joint sol-gel and electrospinning technique
VL  - 24
IS  - 3
SP  - 173
EP  - 180
DO  - 10.30544/387
ER  - 

@article{
author = "Grujić, Aleksandar and Ćosović, Vladan and Stajić-Trošić, Jasna and Ćosović, Aleksandar and Stijepović, Mirko and Putić, Lana and Žák, Tomáš",
year = "2018",
abstract = "In this study, electrospinning combined with sol-gel technique is applied in order to produce magnetic nickel ferrite (Ni-ferrite) nanofibers. The prepared Ni-ferrite gel was mixed with poly(vinylpyrrolidone) (PVP) solution which was used as a spinning aid to enable spinnability of the mixture. Structural and morphological characteristics of the asspun ferrite gel/PVP composite web structure and calcinated Ni-ferrite nanofibers were analyzed using scanning electron microscopy (SEM). Phase composition analysis was carried out by Fourier-transform infrared (FT-IR) spectroscopy, X-Ray diffraction analysis (XRD) and Fe-57 Mossbauer spectroscopy (MS). The obtained results suggest that the pure nanocrystalline NiFe2O4 dense mat to the almost coral-like structure of fibers with diameters ranging from hundreds of nanometers to few micrometers was obtained. The results of MS analysis revealed the existence of a crystallite size distribution within the material as well as the existence of a superparamagnetic fraction with very small crystallite sizes (<13nm). Magnetic behavior of the obtained material at elevated temperatures was also scrutinized using thermomagnetic measurements (TM) up to 800 degrees C.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering",
title = "Synthesis of NiFe2O4 nanofibers by joint sol-gel and electrospinning technique",
volume = "24",
number = "3",
pages = "173-180",
doi = "10.30544/387"
}

Grujić, A., Ćosović, V., Stajić-Trošić, J., Ćosović, A., Stijepović, M., Putić, L.,& Žák, T.. (2018). Synthesis of NiFe2O4 nanofibers by joint sol-gel and electrospinning technique. in Metallurgical & Materials Engineering
Belgrade : Association of Metallurgical Engineers of Serbia., 24(3), 173-180.
https://doi.org/10.30544/387

Grujić A, Ćosović V, Stajić-Trošić J, Ćosović A, Stijepović M, Putić L, Žák T. Synthesis of NiFe2O4 nanofibers by joint sol-gel and electrospinning technique. in Metallurgical & Materials Engineering. 2018;24(3):173-180.
doi:10.30544/387 .

Grujić, Aleksandar, Ćosović, Vladan, Stajić-Trošić, Jasna, Ćosović, Aleksandar, Stijepović, Mirko, Putić, Lana, Žák, Tomáš, "Synthesis of NiFe2O4 nanofibers by joint sol-gel and electrospinning technique" in Metallurgical & Materials Engineering, 24, no. 3 (2018):173-180,
https://doi.org/10.30544/387 . .

TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Stijepović, Mirko Z.
AU  - Perišić, Srđan
AU  - Žák, Tomáš
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2082
AB  - The Nd-Fe-B-barium ferrite hybrid composite materials with epoxy matrix presented in this paper cover maximum energy product from 1 to 13 MGOe. Mixture of magnetic particles is responsible for high magnetic quality, while the thermosetting resin plays a role in mechanical properties. Samples with various ratio of Nd-Fe-B to barium ferrite in constant weight of epoxy resin are examined by tensile strength measurements. Magnetic measurements carried out by using vibrating sample magnetometer (VSM) show typical hysteresis loop. A structural analysis of composite surface is conducted by scanning electron microscope (SEM). Uniform particle distribution of plate shape Nd-Fe-B particles and spherical barium ferrite agglomerates is essential for both, mechanical and magnetic properties of composite materials. Fine particles are incorporated in-between larger particles in epoxy bulk which lead to improving the properties.
AB  - U ovom radu proučavani su hibridni Nd-Fe-B-barijum ferit kompozitni materijali sa epoksi matricom čiji se maksimani energetski proizvod kreće od 1 do 13 MGOe. Odlična magnetna svojstva kompozita potiču od smeše magnetnih čestica, dok termoočvršćavajući polimer ima uticaj na mehanička svojstva. Uzorci sa različitim odnosom udela Nd-Fe-B i barijum ferita u konstantnoj masi epoksi veziva su ispitivani na zateznu čvrstoću. Magnetna merenja vršena pomoću vibracionog magnetometra (VSM) pokazuju karakteristučnu histerezisnu petlju. Strukturnu analizu na površini kompozita sprovedena pomoću skenirajuće elektronske mikroskopije (SEM). Uniformna raspodela pločastih Nd-Fe-B čestica i sferičnih aglomerata barijum ferita je veoma značajna i za mehanička i za magnetna svojstva kompozitnih materijala. Sitne čestice su inkorporirane između velikih čestica u masi epoksida što dovodi do poboljšanja svojstava.
PB  - Belgrade, Serbia : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Tensile strength properties of hybrid magnetic composite materials
T1  - Zatezna čvrstoća hibridnih magnetnih kompozitnih materijala
VL  - 58
IS  - 4
SP  - 570
EP  - 575
DO  - 10.5937/ZasMat1704570G
ER  - 

@article{
author = "Grujić, Aleksandar and Stajić-Trošić, Jasna and Stijepović, Mirko Z. and Perišić, Srđan and Žák, Tomáš",
year = "2017",
abstract = "The Nd-Fe-B-barium ferrite hybrid composite materials with epoxy matrix presented in this paper cover maximum energy product from 1 to 13 MGOe. Mixture of magnetic particles is responsible for high magnetic quality, while the thermosetting resin plays a role in mechanical properties. Samples with various ratio of Nd-Fe-B to barium ferrite in constant weight of epoxy resin are examined by tensile strength measurements. Magnetic measurements carried out by using vibrating sample magnetometer (VSM) show typical hysteresis loop. A structural analysis of composite surface is conducted by scanning electron microscope (SEM). Uniform particle distribution of plate shape Nd-Fe-B particles and spherical barium ferrite agglomerates is essential for both, mechanical and magnetic properties of composite materials. Fine particles are incorporated in-between larger particles in epoxy bulk which lead to improving the properties., U ovom radu proučavani su hibridni Nd-Fe-B-barijum ferit kompozitni materijali sa epoksi matricom čiji se maksimani energetski proizvod kreće od 1 do 13 MGOe. Odlična magnetna svojstva kompozita potiču od smeše magnetnih čestica, dok termoočvršćavajući polimer ima uticaj na mehanička svojstva. Uzorci sa različitim odnosom udela Nd-Fe-B i barijum ferita u konstantnoj masi epoksi veziva su ispitivani na zateznu čvrstoću. Magnetna merenja vršena pomoću vibracionog magnetometra (VSM) pokazuju karakteristučnu histerezisnu petlju. Strukturnu analizu na površini kompozita sprovedena pomoću skenirajuće elektronske mikroskopije (SEM). Uniformna raspodela pločastih Nd-Fe-B čestica i sferičnih aglomerata barijum ferita je veoma značajna i za mehanička i za magnetna svojstva kompozitnih materijala. Sitne čestice su inkorporirane između velikih čestica u masi epoksida što dovodi do poboljšanja svojstava.",
publisher = "Belgrade, Serbia : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Tensile strength properties of hybrid magnetic composite materials, Zatezna čvrstoća hibridnih magnetnih kompozitnih materijala",
volume = "58",
number = "4",
pages = "570-575",
doi = "10.5937/ZasMat1704570G"
}

Grujić, A., Stajić-Trošić, J., Stijepović, M. Z., Perišić, S.,& Žák, T.. (2017). Tensile strength properties of hybrid magnetic composite materials. in Zaštita materijala
Belgrade, Serbia : Engineering Society for Corrosion., 58(4), 570-575.
https://doi.org/10.5937/ZasMat1704570G

Grujić A, Stajić-Trošić J, Stijepović MZ, Perišić S, Žák T. Tensile strength properties of hybrid magnetic composite materials. in Zaštita materijala. 2017;58(4):570-575.
doi:10.5937/ZasMat1704570G .

Grujić, Aleksandar, Stajić-Trošić, Jasna, Stijepović, Mirko Z., Perišić, Srđan, Žák, Tomáš, "Tensile strength properties of hybrid magnetic composite materials" in Zaštita materijala, 58, no. 4 (2017):570-575,
https://doi.org/10.5937/ZasMat1704570G . .

TY  - JOUR
AU  - Ćosović, Aleksandar R.
AU  - Žak, Tomas
AU  - Glisic, Sandra B
AU  - Sokic, Miroslav D
AU  - Lazarević, Slavica
AU  - Ćosović, Vladan
AU  - Orlovic, Aleksandar M
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2009
AB  - Nano-crystalline nickel ferrite has a broad range of applications due to its favourable magnetic properties. Those characteristics can be significantly influenced by the synthesis pathway including methods conducted in the presence of supercritical alcohols. Nano-crystalline NiFe2O4 powders were obtained in the reaction under subcritical and supercritical conditions of ethanol. Both high pressure synthesis routes resulted in powders with smaller primary particles and higher mesoporosity than co-precipitation method. Upon the annealing treatment the average crystallite size increased while material structure remained uniform, resulting in significantly enhanced magnetic properties, such as coercivity and remanence. It was found that synthesis under supercritical conditions provides higher conversion but also material with larger average crystallite size upon annealing. The time and temperature of annealing stage significantly influenced the morphology and magnetic properties of the obtained powders.
PB  - Elsevier
T2  - Journal of Supercritical Fluids
T1  - Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol
VL  - 113
SP  - 96
EP  - 105
DO  - 10.1016/j.supflu.2016.03.014
ER  - 

@article{
author = "Ćosović, Aleksandar R. and Žak, Tomas and Glisic, Sandra B and Sokic, Miroslav D and Lazarević, Slavica and Ćosović, Vladan and Orlovic, Aleksandar M",
year = "2016",
abstract = "Nano-crystalline nickel ferrite has a broad range of applications due to its favourable magnetic properties. Those characteristics can be significantly influenced by the synthesis pathway including methods conducted in the presence of supercritical alcohols. Nano-crystalline NiFe2O4 powders were obtained in the reaction under subcritical and supercritical conditions of ethanol. Both high pressure synthesis routes resulted in powders with smaller primary particles and higher mesoporosity than co-precipitation method. Upon the annealing treatment the average crystallite size increased while material structure remained uniform, resulting in significantly enhanced magnetic properties, such as coercivity and remanence. It was found that synthesis under supercritical conditions provides higher conversion but also material with larger average crystallite size upon annealing. The time and temperature of annealing stage significantly influenced the morphology and magnetic properties of the obtained powders.",
publisher = "Elsevier",
journal = "Journal of Supercritical Fluids",
title = "Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol",
volume = "113",
pages = "96-105",
doi = "10.1016/j.supflu.2016.03.014"
}

Ćosović, A. R., Žak, T., Glisic, S. B., Sokic, M. D., Lazarević, S., Ćosović, V.,& Orlovic, A. M.. (2016). Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol. in Journal of Supercritical Fluids
Elsevier., 113, 96-105.
https://doi.org/10.1016/j.supflu.2016.03.014

Ćosović AR, Žak T, Glisic SB, Sokic MD, Lazarević S, Ćosović V, Orlovic AM. Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol. in Journal of Supercritical Fluids. 2016;113:96-105.
doi:10.1016/j.supflu.2016.03.014 .

Ćosović, Aleksandar R., Žak, Tomas, Glisic, Sandra B, Sokic, Miroslav D, Lazarević, Slavica, Ćosović, Vladan, Orlovic, Aleksandar M, "Synthesis of nano-crystalline NiFe2O4 powders in subcritical and supercritical ethanol" in Journal of Supercritical Fluids, 113 (2016):96-105,
https://doi.org/10.1016/j.supflu.2016.03.014 . .

TY  - JOUR
AU  - Vasic, Milica M
AU  - Roupcova, Pavla
AU  - Pizurova, Nadezda
AU  - Stevanović, Sanja
AU  - Blagojević, Vladimir A.
AU  - Žak, Tomas
AU  - Minić, Dragica M.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2032
AB  - Thermal stability and thermally induced structural transformations of Fe40Ni40P14B6 amorphous alloy were examined under non-isothermal and isothermal conditions. Formation of metastable alpha-(Fe,Ni), and stable gamma-(Fe,Ni) and (Fe,Ni)(3)(P,B) crystalline phases as the main crystallization products was observed, while the presence of small amounts of other crystalline phases like Fe23B6 and Fe2NiB was indicated by electron diffraction in HRTEM. Thermomagnetic curve indicated that Fe content in different crystalline phases is very different, resulting in markedly different Curie temperatures after crystallization. Transmission electron microscopy and atomic force microscopy study suggested multiple-layered platelet-shaped morphology, both on the surface and in the bulk of the crystallized alloy sample. The thermal treatment heating rate and maximum temperature affected surface roughness and grain size inhomogeneity.
PB  - Springer, New York
T2  - Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
T1  - Thermally Induced Structural Transformations of Fe40Ni40P14B6 Amorphous Alloy
IS  - 1
SP  - 260
EP  - 267
DO  - 10.1007/s11661-015-3226-4
ER  - 

@article{
author = "Vasic, Milica M and Roupcova, Pavla and Pizurova, Nadezda and Stevanović, Sanja and Blagojević, Vladimir A. and Žak, Tomas and Minić, Dragica M.",
year = "2016",
abstract = "Thermal stability and thermally induced structural transformations of Fe40Ni40P14B6 amorphous alloy were examined under non-isothermal and isothermal conditions. Formation of metastable alpha-(Fe,Ni), and stable gamma-(Fe,Ni) and (Fe,Ni)(3)(P,B) crystalline phases as the main crystallization products was observed, while the presence of small amounts of other crystalline phases like Fe23B6 and Fe2NiB was indicated by electron diffraction in HRTEM. Thermomagnetic curve indicated that Fe content in different crystalline phases is very different, resulting in markedly different Curie temperatures after crystallization. Transmission electron microscopy and atomic force microscopy study suggested multiple-layered platelet-shaped morphology, both on the surface and in the bulk of the crystallized alloy sample. The thermal treatment heating rate and maximum temperature affected surface roughness and grain size inhomogeneity.",
publisher = "Springer, New York",
journal = "Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science",
title = "Thermally Induced Structural Transformations of Fe40Ni40P14B6 Amorphous Alloy",
number = "1",
pages = "260-267",
doi = "10.1007/s11661-015-3226-4"
}

Vasic, M. M., Roupcova, P., Pizurova, N., Stevanović, S., Blagojević, V. A., Žak, T.,& Minić, D. M.. (2016). Thermally Induced Structural Transformations of Fe40Ni40P14B6 Amorphous Alloy. in Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Springer, New York.(1), 260-267.
https://doi.org/10.1007/s11661-015-3226-4

Vasic MM, Roupcova P, Pizurova N, Stevanović S, Blagojević VA, Žak T, Minić DM. Thermally Induced Structural Transformations of Fe40Ni40P14B6 Amorphous Alloy. in Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science. 2016;(1):260-267.
doi:10.1007/s11661-015-3226-4 .

Vasic, Milica M, Roupcova, Pavla, Pizurova, Nadezda, Stevanović, Sanja, Blagojević, Vladimir A., Žak, Tomas, Minić, Dragica M., "Thermally Induced Structural Transformations of Fe40Ni40P14B6 Amorphous Alloy" in Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, no. 1 (2016):260-267,
https://doi.org/10.1007/s11661-015-3226-4 . .

TY  - JOUR
AU  - Stajić-Trošić, Jasna
AU  - Grujić, Aleksandar
AU  - Stijepović, Mirko Z.
AU  - Nedeljković, Dragutin
AU  - Stajčić, Aleksandar
AU  - Žak, Tomas
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1476
AB  - Polymer bonded magnets are contemporary materials with a very large range of applications. The objective of this study is to assess how different content of Nd-Fe-B and/or barium ferrite particles affect on magnetic and morphological properties of bonded composite materials. Interactions between employed magnetic powders and interactions between magnetic powders and polymer binder are considered. For examination of the magnetic behavior Vibrating Sample Magnetometer (VSM) is used. Different shape and size of obtained hysteresis loops are used for comparison and prediction of polymer bonded materials properties.
AB  - Polimerom vezani magneti predstavljaju savremene materijale sa veoma širokim spektrom primene. Cilj ovog rada je da se analizira i prikaže kako različiti udeli čestica Nd-Fe-B i/ili barijum ferita utiču na magnetna i morfološka svojstva bonded kompozitnih materijala. Razmatrane su interakcije između primenjenih magnetnih prahova različitog tipa i interakcije između magnetnih prahova i polimerne matrice. Za merenje magnetnih svojstava kompozita korišćen je vibracioni magnetometar (VSM). Različiti oblici i veličine dobijenih histerezisnih petlji su poređeni i analizirani u cilju predviđanja magnetnog ponašanja kompozita.
PB  - Belgrade, Serbia : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Magnetic behaviour of hybrid magnetic composite materials
T1  - Magnetno ponašanje hibridnih magnetnih kompozitnih materijala
VL  - 55
IS  - 2
SP  - 170
EP  - 172
DO  - 10.5937/ZasMat1402170S
ER  - 

@article{
author = "Stajić-Trošić, Jasna and Grujić, Aleksandar and Stijepović, Mirko Z. and Nedeljković, Dragutin and Stajčić, Aleksandar and Žak, Tomas",
year = "2014",
abstract = "Polymer bonded magnets are contemporary materials with a very large range of applications. The objective of this study is to assess how different content of Nd-Fe-B and/or barium ferrite particles affect on magnetic and morphological properties of bonded composite materials. Interactions between employed magnetic powders and interactions between magnetic powders and polymer binder are considered. For examination of the magnetic behavior Vibrating Sample Magnetometer (VSM) is used. Different shape and size of obtained hysteresis loops are used for comparison and prediction of polymer bonded materials properties., Polimerom vezani magneti predstavljaju savremene materijale sa veoma širokim spektrom primene. Cilj ovog rada je da se analizira i prikaže kako različiti udeli čestica Nd-Fe-B i/ili barijum ferita utiču na magnetna i morfološka svojstva bonded kompozitnih materijala. Razmatrane su interakcije između primenjenih magnetnih prahova različitog tipa i interakcije između magnetnih prahova i polimerne matrice. Za merenje magnetnih svojstava kompozita korišćen je vibracioni magnetometar (VSM). Različiti oblici i veličine dobijenih histerezisnih petlji su poređeni i analizirani u cilju predviđanja magnetnog ponašanja kompozita.",
publisher = "Belgrade, Serbia : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Magnetic behaviour of hybrid magnetic composite materials, Magnetno ponašanje hibridnih magnetnih kompozitnih materijala",
volume = "55",
number = "2",
pages = "170-172",
doi = "10.5937/ZasMat1402170S"
}

Stajić-Trošić, J., Grujić, A., Stijepović, M. Z., Nedeljković, D., Stajčić, A.,& Žak, T.. (2014). Magnetic behaviour of hybrid magnetic composite materials. in Zaštita materijala
Belgrade, Serbia : Engineering Society for Corrosion., 55(2), 170-172.
https://doi.org/10.5937/ZasMat1402170S

Stajić-Trošić J, Grujić A, Stijepović MZ, Nedeljković D, Stajčić A, Žak T. Magnetic behaviour of hybrid magnetic composite materials. in Zaštita materijala. 2014;55(2):170-172.
doi:10.5937/ZasMat1402170S .

Stajić-Trošić, Jasna, Grujić, Aleksandar, Stijepović, Mirko Z., Nedeljković, Dragutin, Stajčić, Aleksandar, Žak, Tomas, "Magnetic behaviour of hybrid magnetic composite materials" in Zaštita materijala, 55, no. 2 (2014):170-172,
https://doi.org/10.5937/ZasMat1402170S . .

TY  - CONF
AU  - Žak, Tomas
AU  - David, B.
AU  - Ćosović, A.
AU  - Ćosović, Vladan
AU  - Živković, Dragana
AU  - Talijan, Nadežda M.
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1602
AB  - Nanocrystalline Ni-ferrite was synthesized by modified precipitation method in which soluble starch is used as dispersing agent and Na2CO 3 as a precipitating agent. NiSO4-6H2O and Fe(NO3)3-9H2O were used as precursors for nickel and ferric oxide, respectively. The obtained nanocrystalline Ni-ferrite was analysed and discussed through structural, compositional and magnetic characterization. Formation of pure NiFe2O4 phase with average crystallite size of 21 nm has been con rmed by X-ray di raction analysis (XRD). The determined phase composition was additionally supported by results of 57Fe Mössbauer phase (MS) analysis and material's nanocrystalline structure by field emission scanning electron microscopy (FE-SEM). Thermomagnetic behaviour was studied up to 800 C. The obtained room temperature magnetic hysteresis loop, recorded by means of a vibrating sample magnetometer (VSM), exhibits characteristic "S" shape of the soft magnetic material with the measured coercivity of about 10 kA/m and the specific moment up to 40 Am2/kg.
PB  - Polish Academy of Sciences
C3  - Acta Physica Polonica A
T1  - Structure and magnetic properties of nanocrystalline NiFe2O 4 prepared via precipitation route
VL  - 126
IS  - 1
SP  - 142
EP  - 143
DO  - 10.12693/APhysPolA.126.142
ER  - 

@conference{
author = "Žak, Tomas and David, B. and Ćosović, A. and Ćosović, Vladan and Živković, Dragana and Talijan, Nadežda M.",
year = "2014",
abstract = "Nanocrystalline Ni-ferrite was synthesized by modified precipitation method in which soluble starch is used as dispersing agent and Na2CO 3 as a precipitating agent. NiSO4-6H2O and Fe(NO3)3-9H2O were used as precursors for nickel and ferric oxide, respectively. The obtained nanocrystalline Ni-ferrite was analysed and discussed through structural, compositional and magnetic characterization. Formation of pure NiFe2O4 phase with average crystallite size of 21 nm has been con rmed by X-ray di raction analysis (XRD). The determined phase composition was additionally supported by results of 57Fe Mössbauer phase (MS) analysis and material's nanocrystalline structure by field emission scanning electron microscopy (FE-SEM). Thermomagnetic behaviour was studied up to 800 C. The obtained room temperature magnetic hysteresis loop, recorded by means of a vibrating sample magnetometer (VSM), exhibits characteristic "S" shape of the soft magnetic material with the measured coercivity of about 10 kA/m and the specific moment up to 40 Am2/kg.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Structure and magnetic properties of nanocrystalline NiFe2O 4 prepared via precipitation route",
volume = "126",
number = "1",
pages = "142-143",
doi = "10.12693/APhysPolA.126.142"
}

Žak, T., David, B., Ćosović, A., Ćosović, V., Živković, D.,& Talijan, N. M.. (2014). Structure and magnetic properties of nanocrystalline NiFe2O 4 prepared via precipitation route. in Acta Physica Polonica A
Polish Academy of Sciences., 126(1), 142-143.
https://doi.org/10.12693/APhysPolA.126.142

Žak T, David B, Ćosović A, Ćosović V, Živković D, Talijan NM. Structure and magnetic properties of nanocrystalline NiFe2O 4 prepared via precipitation route. in Acta Physica Polonica A. 2014;126(1):142-143.
doi:10.12693/APhysPolA.126.142 .

Žak, Tomas, David, B., Ćosović, A., Ćosović, Vladan, Živković, Dragana, Talijan, Nadežda M., "Structure and magnetic properties of nanocrystalline NiFe2O 4 prepared via precipitation route" in Acta Physica Polonica A, 126, no. 1 (2014):142-143,
https://doi.org/10.12693/APhysPolA.126.142 . .

TY  - JOUR
AU  - Cosovic, A.
AU  - Ćosović, Vladan
AU  - Žak, Tomas
AU  - David, B.
AU  - Talijan, Nadežda M.
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1244
AB  - Nanosize NiFe2O4 was prepared by template method and precipitation process using same starting materials. The use of soluble starch in both synthesis routes was investigated. The amount of the used precipitating agent (Na2CO3) for the precipitation approach was selected according to two adopted scenarios based on theoretical and average yield of possible side reaction expressed by the degree of substitution (DS). The results of SEM microstructural analysis of the prepared Ni-ferrite powders demonstrate evident influence of the applied preparation method whereas high-magnification FE-SEM images show very similar fine-grained structures characterized by different size of particles. According to the results of XRD analysis, the obtained ferrite powders exhibit only slight differences in phase composition with calculated crystallite size for template sample d(XRD) = 36 nm and for the both precipitation route samples d(XRD) = 21 nm. Additional sample characterization using Fe-57 Mossbauer spectroscopy supports the findings of the microstructural and XRD analysis. The "clearest" spectrum was obtained for the template sample while the strongest influence of nanocrystalline component was observed for the sample prepared with maximal amount of precipitation agent (DS=3). The room temperature magnetic hysteresis loops, recorded using vibrating sample magnetometer (VSM), are very similar and exhibit characteristic shape with values of magnetic properties within expected range for this type of material.
PB  - Technical Faculty, Bor
T2  - Journal of Mining and Metallurgy B: Metallurgy
T1  - STRUCTURE AND PROPERTIES OF NANOSIZE NiFe2O4 PREPARED BY TEMPLATE AND PRECIPITATION METHODS
VL  - 49
IS  - 3
SP  - 271
EP  - 277
DO  - 10.2298/JMMB130313021C
ER  - 

@article{
author = "Cosovic, A. and Ćosović, Vladan and Žak, Tomas and David, B. and Talijan, Nadežda M.",
year = "2013",
abstract = "Nanosize NiFe2O4 was prepared by template method and precipitation process using same starting materials. The use of soluble starch in both synthesis routes was investigated. The amount of the used precipitating agent (Na2CO3) for the precipitation approach was selected according to two adopted scenarios based on theoretical and average yield of possible side reaction expressed by the degree of substitution (DS). The results of SEM microstructural analysis of the prepared Ni-ferrite powders demonstrate evident influence of the applied preparation method whereas high-magnification FE-SEM images show very similar fine-grained structures characterized by different size of particles. According to the results of XRD analysis, the obtained ferrite powders exhibit only slight differences in phase composition with calculated crystallite size for template sample d(XRD) = 36 nm and for the both precipitation route samples d(XRD) = 21 nm. Additional sample characterization using Fe-57 Mossbauer spectroscopy supports the findings of the microstructural and XRD analysis. The "clearest" spectrum was obtained for the template sample while the strongest influence of nanocrystalline component was observed for the sample prepared with maximal amount of precipitation agent (DS=3). The room temperature magnetic hysteresis loops, recorded using vibrating sample magnetometer (VSM), are very similar and exhibit characteristic shape with values of magnetic properties within expected range for this type of material.",
publisher = "Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "STRUCTURE AND PROPERTIES OF NANOSIZE NiFe2O4 PREPARED BY TEMPLATE AND PRECIPITATION METHODS",
volume = "49",
number = "3",
pages = "271-277",
doi = "10.2298/JMMB130313021C"
}

Cosovic, A., Ćosović, V., Žak, T., David, B.,& Talijan, N. M.. (2013). STRUCTURE AND PROPERTIES OF NANOSIZE NiFe2O4 PREPARED BY TEMPLATE AND PRECIPITATION METHODS. in Journal of Mining and Metallurgy B: Metallurgy
Technical Faculty, Bor., 49(3), 271-277.
https://doi.org/10.2298/JMMB130313021C

Cosovic A, Ćosović V, Žak T, David B, Talijan NM. STRUCTURE AND PROPERTIES OF NANOSIZE NiFe2O4 PREPARED BY TEMPLATE AND PRECIPITATION METHODS. in Journal of Mining and Metallurgy B: Metallurgy. 2013;49(3):271-277.
doi:10.2298/JMMB130313021C .

Cosovic, A., Ćosović, Vladan, Žak, Tomas, David, B., Talijan, Nadežda M., "STRUCTURE AND PROPERTIES OF NANOSIZE NiFe2O4 PREPARED BY TEMPLATE AND PRECIPITATION METHODS" in Journal of Mining and Metallurgy B: Metallurgy, 49, no. 3 (2013):271-277,
https://doi.org/10.2298/JMMB130313021C . .

TY  - JOUR
AU  - Stajčić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Grujić, Aleksandar
AU  - Stijepović, Mirko Z.
AU  - Lazić, Nada L.
AU  - Žák, Tomáš
AU  - Aleksić, Radoslav
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1084
AB  - Lately, there has been great attention paid to the research of bonded hybrid composites with improved dynamic mechanical capacities capable of replacing bonded Nd-Fe-B magnetic materials, by using cheaper (ferrite) materials instead of the Nd-Fe-B powder while retaining the satisfying values of the maximum magnetic energy. The objective of this study is to assess how different contents of Nd-Fe-B and/or barium ferrite particles can affect morphological, dynamic mechanical and magnetic properties of bonded composite materials. The interactions between employed magnetic powders and the interactions between magnetic powders and polymer binder are considered. For the examination of the magnetic behaviour, a vibrating sample magnetometer (VSM) is used. Different shapes and sizes of the obtained hysteresis loops are used for comparison and prediction of the polymer bonded materials properties. The homogeneous distribution of the magnetic particles in the polymer matrix is validated using scanning electron microscopy (SEM). The elastic and damping behavior examined by dynamic mechanical analysis (DMA) show improved properties for hybrid composite materials.
AB  - Istraživački trend u oblasti polimerom vezanih (bonded) Nd-Fe-B magnetnih materijala se reflektuje kroz razvoj bonded hibridnih kompozita sa poboljšanim dinamičko-mehaničkim svojstvima i primetno nižoj ceni zbog zamene skupe Nd- Fe-B legure jeftinijim magnetnim materijalima (ferit) uz postizanje zadovoljavajućih vrednosti maksimalne magnetne energije. Cilj ovog rada je da ukaže i predvidi uticaj različitog sadržaja Nd-Fe-B i/ili barijum feritnih čestica na morfološka, dinamičko mehanička i magnetna svojstava bonded magneta. Posmatrane su i analizirane interakcije između magnetnih prahova, kao i interakcije između magnetnih prahova i polimernog veziva i njihov uticaj na finalna svojstva bonded magneta. Za ispitivanje magnetnog ponašanja korišćen je vibraconi magnetometar (VSM). Različite veličine i oblici dobijenih histerezisnih krivih su poređeni i korišćeni za predviđanje svojstava ispitivanih kompozitnih materijala. Homogena raspodela magnetnih čestica u polimernoj matrici je potvrđena korišćenjem skenirajućeg elektronskog mikroskopa (SEM). Elastična svojstva i svojstvo prigušenja oscilacija ispitivano je korišćenjem dinamičko mehaničke analize (DMA) koja ukazuje na poboljšana svojstva kod hibridnih kompozita.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Hybrid Nd-Fe-B/barium ferrite magnetic materials with epoxy matrix
T1  - Hibdridni Nd-Fe-B/barijum-ferit magnetni materijali sa epoksi matricom
VL  - 66
IS  - 3
SP  - 301
EP  - 308
DO  - 10.2298/HEMIND111104098S
ER  - 

@article{
author = "Stajčić, Aleksandar and Stajić-Trošić, Jasna and Grujić, Aleksandar and Stijepović, Mirko Z. and Lazić, Nada L. and Žák, Tomáš and Aleksić, Radoslav",
year = "2012",
abstract = "Lately, there has been great attention paid to the research of bonded hybrid composites with improved dynamic mechanical capacities capable of replacing bonded Nd-Fe-B magnetic materials, by using cheaper (ferrite) materials instead of the Nd-Fe-B powder while retaining the satisfying values of the maximum magnetic energy. The objective of this study is to assess how different contents of Nd-Fe-B and/or barium ferrite particles can affect morphological, dynamic mechanical and magnetic properties of bonded composite materials. The interactions between employed magnetic powders and the interactions between magnetic powders and polymer binder are considered. For the examination of the magnetic behaviour, a vibrating sample magnetometer (VSM) is used. Different shapes and sizes of the obtained hysteresis loops are used for comparison and prediction of the polymer bonded materials properties. The homogeneous distribution of the magnetic particles in the polymer matrix is validated using scanning electron microscopy (SEM). The elastic and damping behavior examined by dynamic mechanical analysis (DMA) show improved properties for hybrid composite materials., Istraživački trend u oblasti polimerom vezanih (bonded) Nd-Fe-B magnetnih materijala se reflektuje kroz razvoj bonded hibridnih kompozita sa poboljšanim dinamičko-mehaničkim svojstvima i primetno nižoj ceni zbog zamene skupe Nd- Fe-B legure jeftinijim magnetnim materijalima (ferit) uz postizanje zadovoljavajućih vrednosti maksimalne magnetne energije. Cilj ovog rada je da ukaže i predvidi uticaj različitog sadržaja Nd-Fe-B i/ili barijum feritnih čestica na morfološka, dinamičko mehanička i magnetna svojstava bonded magneta. Posmatrane su i analizirane interakcije između magnetnih prahova, kao i interakcije između magnetnih prahova i polimernog veziva i njihov uticaj na finalna svojstva bonded magneta. Za ispitivanje magnetnog ponašanja korišćen je vibraconi magnetometar (VSM). Različite veličine i oblici dobijenih histerezisnih krivih su poređeni i korišćeni za predviđanje svojstava ispitivanih kompozitnih materijala. Homogena raspodela magnetnih čestica u polimernoj matrici je potvrđena korišćenjem skenirajućeg elektronskog mikroskopa (SEM). Elastična svojstva i svojstvo prigušenja oscilacija ispitivano je korišćenjem dinamičko mehaničke analize (DMA) koja ukazuje na poboljšana svojstva kod hibridnih kompozita.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Hybrid Nd-Fe-B/barium ferrite magnetic materials with epoxy matrix, Hibdridni Nd-Fe-B/barijum-ferit magnetni materijali sa epoksi matricom",
volume = "66",
number = "3",
pages = "301-308",
doi = "10.2298/HEMIND111104098S"
}

Stajčić, A., Stajić-Trošić, J., Grujić, A., Stijepović, M. Z., Lazić, N. L., Žák, T.,& Aleksić, R.. (2012). Hybrid Nd-Fe-B/barium ferrite magnetic materials with epoxy matrix. in Hemijska industrija
Association of Chemical Engineers of Serbia., 66(3), 301-308.
https://doi.org/10.2298/HEMIND111104098S

Stajčić A, Stajić-Trošić J, Grujić A, Stijepović MZ, Lazić NL, Žák T, Aleksić R. Hybrid Nd-Fe-B/barium ferrite magnetic materials with epoxy matrix. in Hemijska industrija. 2012;66(3):301-308.
doi:10.2298/HEMIND111104098S .

Stajčić, Aleksandar, Stajić-Trošić, Jasna, Grujić, Aleksandar, Stijepović, Mirko Z., Lazić, Nada L., Žák, Tomáš, Aleksić, Radoslav, "Hybrid Nd-Fe-B/barium ferrite magnetic materials with epoxy matrix" in Hemijska industrija, 66, no. 3 (2012):301-308,
https://doi.org/10.2298/HEMIND111104098S . .

TY  - JOUR
AU  - Žak, Tomas
AU  - Ćosović, Vladan
AU  - Cosovic, A.
AU  - David, B.
AU  - Talijan, Nadežda M.
AU  - Živković, Dragana
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1069
AB  - Magnetic NiFe2O4 structure formation was studied through structural, compositional and magnetic characterization of obtained reaction products of a simple, high yielding and low-cost solid-state reaction. Initial annealing of the starting oxides mixture at 700 degrees C did not allow us to observe formation of the desired magnetic phase. In contrast, subsequent thermomagnetic measurements up to 800 degrees C indicated the considerable increase of the magnetic moment, which can be reasonably assigned to the changes in phase composition and formation of magnetic NiFe2O4 structure during the heating cycle of measurements. Nanosized NiFe2O4 phase formation has been confirmed by the following XRD and MS phase analyses and its nanocrystalline structure by XRD and SEM/TEM techniques. The obtained hysteresis loop taken after TM measurements suggest the increased volume of magnetically active material and thus additionally support the previous findings.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - Formation of Magnetic Microstructure of the Nanosized NiFe2O4 Synthesized Via Solid-State Reaction
VL  - 44
IS  - 1
SP  - 103
EP  - 112
DO  - 10.2298/SOS1201103Z
ER  - 

@article{
author = "Žak, Tomas and Ćosović, Vladan and Cosovic, A. and David, B. and Talijan, Nadežda M. and Živković, Dragana",
year = "2012",
abstract = "Magnetic NiFe2O4 structure formation was studied through structural, compositional and magnetic characterization of obtained reaction products of a simple, high yielding and low-cost solid-state reaction. Initial annealing of the starting oxides mixture at 700 degrees C did not allow us to observe formation of the desired magnetic phase. In contrast, subsequent thermomagnetic measurements up to 800 degrees C indicated the considerable increase of the magnetic moment, which can be reasonably assigned to the changes in phase composition and formation of magnetic NiFe2O4 structure during the heating cycle of measurements. Nanosized NiFe2O4 phase formation has been confirmed by the following XRD and MS phase analyses and its nanocrystalline structure by XRD and SEM/TEM techniques. The obtained hysteresis loop taken after TM measurements suggest the increased volume of magnetically active material and thus additionally support the previous findings.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "Formation of Magnetic Microstructure of the Nanosized NiFe2O4 Synthesized Via Solid-State Reaction",
volume = "44",
number = "1",
pages = "103-112",
doi = "10.2298/SOS1201103Z"
}

Žak, T., Ćosović, V., Cosovic, A., David, B., Talijan, N. M.,& Živković, D.. (2012). Formation of Magnetic Microstructure of the Nanosized NiFe2O4 Synthesized Via Solid-State Reaction. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 44(1), 103-112.
https://doi.org/10.2298/SOS1201103Z

Žak T, Ćosović V, Cosovic A, David B, Talijan NM, Živković D. Formation of Magnetic Microstructure of the Nanosized NiFe2O4 Synthesized Via Solid-State Reaction. in Science of Sintering. 2012;44(1):103-112.
doi:10.2298/SOS1201103Z .

Žak, Tomas, Ćosović, Vladan, Cosovic, A., David, B., Talijan, Nadežda M., Živković, Dragana, "Formation of Magnetic Microstructure of the Nanosized NiFe2O4 Synthesized Via Solid-State Reaction" in Science of Sintering, 44, no. 1 (2012):103-112,
https://doi.org/10.2298/SOS1201103Z . .

TY  - JOUR
AU  - Žak, Tomas
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Grujić, Aleksandar
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/671
AB  - A commercial Nd-rich Nd-Fe-B-based hard magnetic material was studied. The obtained results were compared before and after recording of the thermomagnetic curve up to 800 °C. The curve itself showed clearly besides Curie points of the Nd2Fe14B phase and α-Fe also another critical temperature. Mössbauer spectroscopic (MS) phase analysis and X-ray diffraction analysis (XRD) showed in addition to the commonly known phases Nd2Fe14B and NdFe4B4 also some paramagnetic and ferromagnetic iron atoms (MS) and Fe17Nd2 intermetallics (XRD). During the exerted thermal treatment the content of the Nd2Fe14B and NdFe4B4 phases remained almost unchanged while iron atoms from remnant minor phases built a separate α-Fe phase. The XRD pattern also showed the presence of some minor Nd phase. The results of Squid magnetic measurements suggest a nanocrystalline decoupled structure of the Nd-rich alloy in the optimized magnetic state. Measurement of the magnetization loop showed, in spite of small changes in the phase composition, that magnetic properties of the quality material deteriorated during the thermal treatment.
AB  - Ispitivan je komercijalni magnetno-tvrdi materijal na bazi Nd-Fe-B legure obogaćene neodijumom. Dobijeni rezultati ispitivanja materijala u optimalnom stanju i posle termomagnetnih (TM) merenja do 800 °C poređeni su i diskutovani. Na dobijenoj termomagnetnoj krivoj se, pored jasno vidljivih Kiri temperatura faza Nd2Fe14B i α-Fe, može uočiti i još jedna kritična temperatura. Primenom Mössbauer-ove spektroskopske (MS) fazne analize i metode difrakcije X-zraka (XRD) utvrđeno je, pored prisustva očekivanih Nd2Fe14B i NdFe4B4 faza, i prisustvo paramagnetnih i feromagnetnih jona Fe (MS), kao i Fe17Nd2 intermetalnih jedinjenja (XRD). U toku primenjenog termičkog tretmana udeo Nd2Fe14B i NdFe4B4 faza je ostao skoro nepromenjen dok su atomi Fe iz ostalih faza sa manjim udelom formirali zasebnu α-Fe fazu. Rezultati magnetnih merenja na Squid magnetometru ukazuju na nanokristalnu dekuplovanu strukturu legure obogaćene na neodijumu u optimalnom magnetnom stanju. Iz dobijenih histerezisnih petlji se može videti da je i pored malih promena u faznom sastavu termički tretman doveo do delimičnog gubitka magnetnih svojstava ispitvanog materijala.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - An overstoichiometric Nd-Fe-B hard magnetic material
T1  - Nadstehiometrijski Nd-Fe-B tvrdi magnetni materijali
VL  - 75
IS  - 9
SP  - 1271
EP  - 1277
DO  - 10.2298/JSC100217058Z
ER  - 

@article{
author = "Žak, Tomas and Talijan, Nadežda M. and Ćosović, Vladan and Stajić-Trošić, Jasna and Grujić, Aleksandar",
year = "2010",
abstract = "A commercial Nd-rich Nd-Fe-B-based hard magnetic material was studied. The obtained results were compared before and after recording of the thermomagnetic curve up to 800 °C. The curve itself showed clearly besides Curie points of the Nd2Fe14B phase and α-Fe also another critical temperature. Mössbauer spectroscopic (MS) phase analysis and X-ray diffraction analysis (XRD) showed in addition to the commonly known phases Nd2Fe14B and NdFe4B4 also some paramagnetic and ferromagnetic iron atoms (MS) and Fe17Nd2 intermetallics (XRD). During the exerted thermal treatment the content of the Nd2Fe14B and NdFe4B4 phases remained almost unchanged while iron atoms from remnant minor phases built a separate α-Fe phase. The XRD pattern also showed the presence of some minor Nd phase. The results of Squid magnetic measurements suggest a nanocrystalline decoupled structure of the Nd-rich alloy in the optimized magnetic state. Measurement of the magnetization loop showed, in spite of small changes in the phase composition, that magnetic properties of the quality material deteriorated during the thermal treatment., Ispitivan je komercijalni magnetno-tvrdi materijal na bazi Nd-Fe-B legure obogaćene neodijumom. Dobijeni rezultati ispitivanja materijala u optimalnom stanju i posle termomagnetnih (TM) merenja do 800 °C poređeni su i diskutovani. Na dobijenoj termomagnetnoj krivoj se, pored jasno vidljivih Kiri temperatura faza Nd2Fe14B i α-Fe, može uočiti i još jedna kritična temperatura. Primenom Mössbauer-ove spektroskopske (MS) fazne analize i metode difrakcije X-zraka (XRD) utvrđeno je, pored prisustva očekivanih Nd2Fe14B i NdFe4B4 faza, i prisustvo paramagnetnih i feromagnetnih jona Fe (MS), kao i Fe17Nd2 intermetalnih jedinjenja (XRD). U toku primenjenog termičkog tretmana udeo Nd2Fe14B i NdFe4B4 faza je ostao skoro nepromenjen dok su atomi Fe iz ostalih faza sa manjim udelom formirali zasebnu α-Fe fazu. Rezultati magnetnih merenja na Squid magnetometru ukazuju na nanokristalnu dekuplovanu strukturu legure obogaćene na neodijumu u optimalnom magnetnom stanju. Iz dobijenih histerezisnih petlji se može videti da je i pored malih promena u faznom sastavu termički tretman doveo do delimičnog gubitka magnetnih svojstava ispitvanog materijala.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "An overstoichiometric Nd-Fe-B hard magnetic material, Nadstehiometrijski Nd-Fe-B tvrdi magnetni materijali",
volume = "75",
number = "9",
pages = "1271-1277",
doi = "10.2298/JSC100217058Z"
}

Žak, T., Talijan, N. M., Ćosović, V., Stajić-Trošić, J.,& Grujić, A.. (2010). An overstoichiometric Nd-Fe-B hard magnetic material. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 75(9), 1271-1277.
https://doi.org/10.2298/JSC100217058Z

Žak T, Talijan NM, Ćosović V, Stajić-Trošić J, Grujić A. An overstoichiometric Nd-Fe-B hard magnetic material. in Journal of the Serbian Chemical Society. 2010;75(9):1271-1277.
doi:10.2298/JSC100217058Z .

Žak, Tomas, Talijan, Nadežda M., Ćosović, Vladan, Stajić-Trošić, Jasna, Grujić, Aleksandar, "An overstoichiometric Nd-Fe-B hard magnetic material" in Journal of the Serbian Chemical Society, 75, no. 9 (2010):1271-1277,
https://doi.org/10.2298/JSC100217058Z . .

TY  - JOUR
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Žak, Tomas
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/551
AB  - Changes in the microstructure parameters, phase composition and magnetic properties of rapid quenched Nd-rich Nd14Fe79B7 alloy caused by thermomagnetic measurement (TM) were studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. The observed changes were analyzed between the optimized magnetic state of this alloy and state after TM up to 800oC. Measurement of magnetic properties was carried out on the SQUID magnetometer at ambient temperature. The obtained experimental results show that the investigated alloy in the optimized magnetic state has nearly monophase composition with predominant content of hard magnetic Nd2Fe14B phase (up to 95 mass %) with mean crystallite size below 60 nm. In the state after TM, it was found that the decreased amount of Nd2Fe14B phase (75 mass%), increased amount of soft magnetic phases, predominantly of Fe7Nd5, formation of Nd-rich oxide Nd2O3 phase, as well as grain growth have caused the observed quality loss of hard magnetic properties.
PB  - Technical Faculty, Bor
T2  - Journal of Mining and Metallurgy B: Metallurgy
T1  - Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements
VL  - 45
IS  - 1
SP  - 111
EP  - 119
DO  - 10.2298/JMMB0901111T
ER  - 

@article{
author = "Talijan, Nadežda M. and Ćosović, Vladan and Žak, Tomas and Grujić, Aleksandar and Stajić-Trošić, Jasna",
year = "2009",
abstract = "Changes in the microstructure parameters, phase composition and magnetic properties of rapid quenched Nd-rich Nd14Fe79B7 alloy caused by thermomagnetic measurement (TM) were studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. The observed changes were analyzed between the optimized magnetic state of this alloy and state after TM up to 800oC. Measurement of magnetic properties was carried out on the SQUID magnetometer at ambient temperature. The obtained experimental results show that the investigated alloy in the optimized magnetic state has nearly monophase composition with predominant content of hard magnetic Nd2Fe14B phase (up to 95 mass %) with mean crystallite size below 60 nm. In the state after TM, it was found that the decreased amount of Nd2Fe14B phase (75 mass%), increased amount of soft magnetic phases, predominantly of Fe7Nd5, formation of Nd-rich oxide Nd2O3 phase, as well as grain growth have caused the observed quality loss of hard magnetic properties.",
publisher = "Technical Faculty, Bor",
journal = "Journal of Mining and Metallurgy B: Metallurgy",
title = "Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements",
volume = "45",
number = "1",
pages = "111-119",
doi = "10.2298/JMMB0901111T"
}

Talijan, N. M., Ćosović, V., Žak, T., Grujić, A.,& Stajić-Trošić, J.. (2009). Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements. in Journal of Mining and Metallurgy B: Metallurgy
Technical Faculty, Bor., 45(1), 111-119.
https://doi.org/10.2298/JMMB0901111T

Talijan NM, Ćosović V, Žak T, Grujić A, Stajić-Trošić J. Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements. in Journal of Mining and Metallurgy B: Metallurgy. 2009;45(1):111-119.
doi:10.2298/JMMB0901111T .

Talijan, Nadežda M., Ćosović, Vladan, Žak, Tomas, Grujić, Aleksandar, Stajić-Trošić, Jasna, "Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements" in Journal of Mining and Metallurgy B: Metallurgy, 45, no. 1 (2009):111-119,
https://doi.org/10.2298/JMMB0901111T . .

TY  - JOUR
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Grujić, Aleksandar
AU  - Žak, Tomas
AU  - Lee, Z.
AU  - Radmilović, V.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/617
AB  - Changes in the phase composition and crystallite size of a rapid quenched Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements (TM) have been studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. Structural changes in regard to optimal magnetic state were additionally analyzed by TEM. Magnetic properties in optimal magnetic state and after TM were observed using room temperature SQUID measurements. The obtained experimental results suggest the Fe3B/Nd2Fe14B and partly α-Fe nanocomposite structure of the alloy in the optimized magnetic state, with mean crystallite size (< 30 nm). After TM, an increased amount of α-Fe phase, presence of different oxide and Fe-B phases as well as growth of crystallites are found to be the main reasons for the observed quality loss of hard magnetic properties.
T2  - Materials Transactions
T1  - Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy
VL  - 50
IS  - 9
SP  - 2302
EP  - 2307
DO  - 10.2320/matertrans.M2009138
ER  - 

@article{
author = "Talijan, Nadežda M. and Ćosović, Vladan and Stajić-Trošić, Jasna and Grujić, Aleksandar and Žak, Tomas and Lee, Z. and Radmilović, V.",
year = "2009",
abstract = "Changes in the phase composition and crystallite size of a rapid quenched Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements (TM) have been studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. Structural changes in regard to optimal magnetic state were additionally analyzed by TEM. Magnetic properties in optimal magnetic state and after TM were observed using room temperature SQUID measurements. The obtained experimental results suggest the Fe3B/Nd2Fe14B and partly α-Fe nanocomposite structure of the alloy in the optimized magnetic state, with mean crystallite size (< 30 nm). After TM, an increased amount of α-Fe phase, presence of different oxide and Fe-B phases as well as growth of crystallites are found to be the main reasons for the observed quality loss of hard magnetic properties.",
journal = "Materials Transactions",
title = "Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy",
volume = "50",
number = "9",
pages = "2302-2307",
doi = "10.2320/matertrans.M2009138"
}

Talijan, N. M., Ćosović, V., Stajić-Trošić, J., Grujić, A., Žak, T., Lee, Z.,& Radmilović, V.. (2009). Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy. in Materials Transactions, 50(9), 2302-2307.
https://doi.org/10.2320/matertrans.M2009138

Talijan NM, Ćosović V, Stajić-Trošić J, Grujić A, Žak T, Lee Z, Radmilović V. Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy. in Materials Transactions. 2009;50(9):2302-2307.
doi:10.2320/matertrans.M2009138 .

Talijan, Nadežda M., Ćosović, Vladan, Stajić-Trošić, Jasna, Grujić, Aleksandar, Žak, Tomas, Lee, Z., Radmilović, V., "Thermomagnetic analysis of nanocrystalline Nd4.5Fe 77B18.5 alloy" in Materials Transactions, 50, no. 9 (2009):2302-2307,
https://doi.org/10.2320/matertrans.M2009138 . .

TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Žak, Tomas
AU  - Ćosović, Vladan
AU  - Stajić-Trošić, Jasna
AU  - Spasojević, Vojislav
AU  - Talijan, Nadežda M.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/541
AB  - For the purpose of better understanding of the effect of different Nd content on the magnetic properties of three types of commercial Nd-Fe-B alloys with 10-12 wt% Nd (Nd-low), 21-25 wt% (Nd-stoich.), and 26-29 wt% Nd (Nd-rich) were simultaneously analyzed using X-Ray and Fe-57 Mossbauer spectroscopy analysis. The observation was based on correlation of starting chemical composition with phase composition and magnetic properties of the alloys in optimized magnetic state.
PB  - National Institute of Optoelectronics
T2  - Optoelectronics and Advanced Materials, Rapid Communications
T1  - The comparative study of Nd-Fe-B magnetic materials with different Nd content
VL  - 3
IS  - 5
SP  - 477
EP  - 480
UR  - https://hdl.handle.net/21.15107/rcub_cer_541
ER  - 

@article{
author = "Grujić, Aleksandar and Žak, Tomas and Ćosović, Vladan and Stajić-Trošić, Jasna and Spasojević, Vojislav and Talijan, Nadežda M.",
year = "2009",
abstract = "For the purpose of better understanding of the effect of different Nd content on the magnetic properties of three types of commercial Nd-Fe-B alloys with 10-12 wt% Nd (Nd-low), 21-25 wt% (Nd-stoich.), and 26-29 wt% Nd (Nd-rich) were simultaneously analyzed using X-Ray and Fe-57 Mossbauer spectroscopy analysis. The observation was based on correlation of starting chemical composition with phase composition and magnetic properties of the alloys in optimized magnetic state.",
publisher = "National Institute of Optoelectronics",
journal = "Optoelectronics and Advanced Materials, Rapid Communications",
title = "The comparative study of Nd-Fe-B magnetic materials with different Nd content",
volume = "3",
number = "5",
pages = "477-480",
url = "https://hdl.handle.net/21.15107/rcub_cer_541"
}

Grujić, A., Žak, T., Ćosović, V., Stajić-Trošić, J., Spasojević, V.,& Talijan, N. M.. (2009). The comparative study of Nd-Fe-B magnetic materials with different Nd content. in Optoelectronics and Advanced Materials, Rapid Communications
National Institute of Optoelectronics., 3(5), 477-480.
https://hdl.handle.net/21.15107/rcub_cer_541

Grujić A, Žak T, Ćosović V, Stajić-Trošić J, Spasojević V, Talijan NM. The comparative study of Nd-Fe-B magnetic materials with different Nd content. in Optoelectronics and Advanced Materials, Rapid Communications. 2009;3(5):477-480.
https://hdl.handle.net/21.15107/rcub_cer_541 .

Grujić, Aleksandar, Žak, Tomas, Ćosović, Vladan, Stajić-Trošić, Jasna, Spasojević, Vojislav, Talijan, Nadežda M., "The comparative study of Nd-Fe-B magnetic materials with different Nd content" in Optoelectronics and Advanced Materials, Rapid Communications, 3, no. 5 (2009):477-480,
https://hdl.handle.net/21.15107/rcub_cer_541 .

TY  - JOUR
AU  - Grujić, Aleksandar
AU  - Žak, Tomas
AU  - Talijan, Nadežda M.
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Vladan
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/522
AB  - Changes in the phase composition and magnetic properties of three types of commercial Nd-Fe-B alloys with different Nd content - low (10-12 wt%), near stoichiometric (21-25 wt%) and rich (26-29 wt%) caused by thermomagnetic analysis (TM) were observed in regard to optimal magnetic state. Phase compositions of investigated alloys before and after TM measurement up to 800°C were compared using 57Fe Mössbauer spectroscopy and X-Ray analysis. The TM measurements decompose all three materials and the main products of decomposition process α-Fe and Fe2B phase. Observed changes in structure and phase composition had direct influence on magnetic properties. Loss of magnetic properties induced by thermal decomposition is clearly illustrated on corresponding SQUID hysteresis loops.
AB  - Istraživane su promene faznog sastava i magnetnih svojstava u odnosu na optimalno magnetno stanje za tri tipa komercijalnih Nd-Fe-B legura sa različitim sadržajem neodijuma - niskim (10-12 mas %), bliskim stehiometrijskom (21-25 mas %) i visokim (26-29 mas %), prouzrokovanih termomagnetnim (TM) merenjima. Fazni sastavi istraživanih legura pre i posle TM merenja do 800°C su poređeni koršćenjem 57Fe Mössbauer spektroskopske fazne analize i rendgensko-difraktometrijske analize. Usled termomagnetnih merenja dolazi do dekompozicije sva tri istraživana materijala i kao osnovni produkti dekompozicije nastaju α-Fe i Fe2B faze. Posmatrane promene u strukturi i faznom sastavu imaju direktan uticaj na magnetna svojstva. Gubitak magnetnih svojstava nastao usled termičke dekompozicije je jasno ilustrovan odgovarajućim SQUID histerezisnim petljama.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content
VL  - 41
IS  - 3
SP  - 337
EP  - 345
DO  - 10.2298/SOS0903337G
ER  - 

@article{
author = "Grujić, Aleksandar and Žak, Tomas and Talijan, Nadežda M. and Stajić-Trošić, Jasna and Ćosović, Vladan",
year = "2009",
abstract = "Changes in the phase composition and magnetic properties of three types of commercial Nd-Fe-B alloys with different Nd content - low (10-12 wt%), near stoichiometric (21-25 wt%) and rich (26-29 wt%) caused by thermomagnetic analysis (TM) were observed in regard to optimal magnetic state. Phase compositions of investigated alloys before and after TM measurement up to 800°C were compared using 57Fe Mössbauer spectroscopy and X-Ray analysis. The TM measurements decompose all three materials and the main products of decomposition process α-Fe and Fe2B phase. Observed changes in structure and phase composition had direct influence on magnetic properties. Loss of magnetic properties induced by thermal decomposition is clearly illustrated on corresponding SQUID hysteresis loops., Istraživane su promene faznog sastava i magnetnih svojstava u odnosu na optimalno magnetno stanje za tri tipa komercijalnih Nd-Fe-B legura sa različitim sadržajem neodijuma - niskim (10-12 mas %), bliskim stehiometrijskom (21-25 mas %) i visokim (26-29 mas %), prouzrokovanih termomagnetnim (TM) merenjima. Fazni sastavi istraživanih legura pre i posle TM merenja do 800°C su poređeni koršćenjem 57Fe Mössbauer spektroskopske fazne analize i rendgensko-difraktometrijske analize. Usled termomagnetnih merenja dolazi do dekompozicije sva tri istraživana materijala i kao osnovni produkti dekompozicije nastaju α-Fe i Fe2B faze. Posmatrane promene u strukturi i faznom sastavu imaju direktan uticaj na magnetna svojstva. Gubitak magnetnih svojstava nastao usled termičke dekompozicije je jasno ilustrovan odgovarajućim SQUID histerezisnim petljama.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content",
volume = "41",
number = "3",
pages = "337-345",
doi = "10.2298/SOS0903337G"
}

Grujić, A., Žak, T., Talijan, N. M., Stajić-Trošić, J.,& Ćosović, V.. (2009). A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 41(3), 337-345.
https://doi.org/10.2298/SOS0903337G

Grujić A, Žak T, Talijan NM, Stajić-Trošić J, Ćosović V. A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content. in Science of Sintering. 2009;41(3):337-345.
doi:10.2298/SOS0903337G .

Grujić, Aleksandar, Žak, Tomas, Talijan, Nadežda M., Stajić-Trošić, Jasna, Ćosović, Vladan, "A comparative thermomagnetic study of melt-spun Nd-Fe-B alloys with different Nd content" in Science of Sintering, 41, no. 3 (2009):337-345,
https://doi.org/10.2298/SOS0903337G . .

TY  - JOUR
AU  - Ćosović, Vladan
AU  - Talijan, Nadežda M.
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Žak, Tomas
AU  - Lee, Z.
AU  - Radmilović, V.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/514
AB  - Characterization of two rapid-quenched Nd-Fe-B alloys with nonstoichiometric Nd content in the optimized magnetic state was carried out using the X-ray diffractometry (XRD), 57Fe Mössbauer spectroscopic phase analysis (MS), electron microscopy (TEM), high resolution TEM (HREM) and Superconducting Quantum Interference Device (SQUID) magnetometer. The experimental results demonstrate the fundamental difference in the structure and magnetic properties of the two investigated alloys in the optimized magnetic state. The Nd-Fe-B alloy with the reduced Nd content (Nd4.5Fe77B18.5) was found to have the nanocomposite structure of Fe3B/Nd2Fe14B and partly α-Fe/Nd2Fe14B, with mean grain size below 30 nm. On the other side, the overstoichiometric Nd14Fe79B7 alloy has almost a monophase structure with the dominant content of the hard magnetic phase Nd2Fe14B (up to 95 wt. %) and a mean crystallite size about 60 nm, as determined by XRD and TEM analysis. The results of magnetic measurements on SQUID magnetometer also suggest the nanocomposite structure of the Nd-low alloy and nanocrystalline decoupled structure of the Nd-rich alloy after the optimal heat treatment.
AB  - Dva tipa brzo hlađenih Nd-Fe-B legura sa nestehiometrijskim sadržajem neodijuma analizirani su u optimalnom magnetnom stanju primenom rendgensko- difraktometrijske analize (XRD), 57Fe Mössbauer spektroskopske fazne analize (MS), transmisione elektronske mikroskopije (TEM) i transmisione elektronske mikroskopije visoke rezolucije (HREM). Magnetna merenja vršena su na SQUID magnetometru. Dobijeni eksperimentalni rezultati ukazuju na fundamentalnu razliku u strukturi i magnetnim svojstvima ispitivanih legura u optimalnom magnetnom stanju. Eksperimentalno je pokazano da Nd4.5Fe77B18.5 - legura sa redukovanim sadržajem Nd, ima nanokompozitnu strukturu tipa Fe3B/Nd2Fe14B sa delimičnim učešćem α-Fe faze i srednju veličinu kristalnih zrna prisutnih faza ispod 30 nm. Sa druge strane, Nd14Fe79B7 - legura obogaćena na Nd, ima pretežno monofaznu strukturu sa dominantnim sadržajem tvrde magnetne faze Nd2Fe14B (do 95 mas. %) i srednju veličinu zrna oko 60 nm, utvrđenu XRD i TEM analizom. Rezultati magnetnih merenja na SQUID magnetometru takođe ukazuju na nanokompozitnu strukturu Nd-Fe-B legure sa redukovanim sadržajem Nd odnosno na nanokristalnu dekuplovanu strukturu legure obogaćene na neodijumu, posle optimalnog termičkog tretmana.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - Study of Nd-Fe-B alloys with nonstoichiometric Nd content in optimal magnetic state
VL  - 41
IS  - 2
SP  - 211
EP  - 220
DO  - 10.2298/SOS0902209C
ER  - 

@article{
author = "Ćosović, Vladan and Talijan, Nadežda M. and Grujić, Aleksandar and Stajić-Trošić, Jasna and Žak, Tomas and Lee, Z. and Radmilović, V.",
year = "2009",
abstract = "Characterization of two rapid-quenched Nd-Fe-B alloys with nonstoichiometric Nd content in the optimized magnetic state was carried out using the X-ray diffractometry (XRD), 57Fe Mössbauer spectroscopic phase analysis (MS), electron microscopy (TEM), high resolution TEM (HREM) and Superconducting Quantum Interference Device (SQUID) magnetometer. The experimental results demonstrate the fundamental difference in the structure and magnetic properties of the two investigated alloys in the optimized magnetic state. The Nd-Fe-B alloy with the reduced Nd content (Nd4.5Fe77B18.5) was found to have the nanocomposite structure of Fe3B/Nd2Fe14B and partly α-Fe/Nd2Fe14B, with mean grain size below 30 nm. On the other side, the overstoichiometric Nd14Fe79B7 alloy has almost a monophase structure with the dominant content of the hard magnetic phase Nd2Fe14B (up to 95 wt. %) and a mean crystallite size about 60 nm, as determined by XRD and TEM analysis. The results of magnetic measurements on SQUID magnetometer also suggest the nanocomposite structure of the Nd-low alloy and nanocrystalline decoupled structure of the Nd-rich alloy after the optimal heat treatment., Dva tipa brzo hlađenih Nd-Fe-B legura sa nestehiometrijskim sadržajem neodijuma analizirani su u optimalnom magnetnom stanju primenom rendgensko- difraktometrijske analize (XRD), 57Fe Mössbauer spektroskopske fazne analize (MS), transmisione elektronske mikroskopije (TEM) i transmisione elektronske mikroskopije visoke rezolucije (HREM). Magnetna merenja vršena su na SQUID magnetometru. Dobijeni eksperimentalni rezultati ukazuju na fundamentalnu razliku u strukturi i magnetnim svojstvima ispitivanih legura u optimalnom magnetnom stanju. Eksperimentalno je pokazano da Nd4.5Fe77B18.5 - legura sa redukovanim sadržajem Nd, ima nanokompozitnu strukturu tipa Fe3B/Nd2Fe14B sa delimičnim učešćem α-Fe faze i srednju veličinu kristalnih zrna prisutnih faza ispod 30 nm. Sa druge strane, Nd14Fe79B7 - legura obogaćena na Nd, ima pretežno monofaznu strukturu sa dominantnim sadržajem tvrde magnetne faze Nd2Fe14B (do 95 mas. %) i srednju veličinu zrna oko 60 nm, utvrđenu XRD i TEM analizom. Rezultati magnetnih merenja na SQUID magnetometru takođe ukazuju na nanokompozitnu strukturu Nd-Fe-B legure sa redukovanim sadržajem Nd odnosno na nanokristalnu dekuplovanu strukturu legure obogaćene na neodijumu, posle optimalnog termičkog tretmana.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "Study of Nd-Fe-B alloys with nonstoichiometric Nd content in optimal magnetic state",
volume = "41",
number = "2",
pages = "211-220",
doi = "10.2298/SOS0902209C"
}

Ćosović, V., Talijan, N. M., Grujić, A., Stajić-Trošić, J., Žak, T., Lee, Z.,& Radmilović, V.. (2009). Study of Nd-Fe-B alloys with nonstoichiometric Nd content in optimal magnetic state. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 41(2), 211-220.
https://doi.org/10.2298/SOS0902209C

Ćosović V, Talijan NM, Grujić A, Stajić-Trošić J, Žak T, Lee Z, Radmilović V. Study of Nd-Fe-B alloys with nonstoichiometric Nd content in optimal magnetic state. in Science of Sintering. 2009;41(2):211-220.
doi:10.2298/SOS0902209C .

Ćosović, Vladan, Talijan, Nadežda M., Grujić, Aleksandar, Stajić-Trošić, Jasna, Žak, Tomas, Lee, Z., Radmilović, V., "Study of Nd-Fe-B alloys with nonstoichiometric Nd content in optimal magnetic state" in Science of Sintering, 41, no. 2 (2009):211-220,
https://doi.org/10.2298/SOS0902209C . .

TY  - CONF
AU  - Žak, Tomas
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/465
AB  - Three kinds of commercial Nd-Fe-B based materials were compared using 57Fe Mössbauer spectroscopy and X-ray analysis: near the Nd 2Fe14B stoichiometry and with both lowered and raised Nd content. Magnetically hard Nd2Fe14B is present in all three materials. In the Nd-low material it is accompanied with the magnetically soft Fe3B phase, building the nanocomposite structure. In the Nd-rich sample the overstoichiometric Nd atoms seem to build separate phase of Fe-Nd solid solution. None of the materials contain significant content of phases degrading magnetic characteristics, with except of minor Nd1.1Fe 4B4 one.
PB  - Polish Academy of Sciences
C3  - Acta Physica Polonica A
T1  - NdFeB permanent magnets with various Nd content
VL  - 113
IS  - 1
SP  - 279
EP  - 282
DO  - 10.12693/APhysPolA.113.279
ER  - 

@conference{
author = "Žak, Tomas and Talijan, Nadežda M. and Ćosović, Vladan and Grujić, Aleksandar",
year = "2008",
abstract = "Three kinds of commercial Nd-Fe-B based materials were compared using 57Fe Mössbauer spectroscopy and X-ray analysis: near the Nd 2Fe14B stoichiometry and with both lowered and raised Nd content. Magnetically hard Nd2Fe14B is present in all three materials. In the Nd-low material it is accompanied with the magnetically soft Fe3B phase, building the nanocomposite structure. In the Nd-rich sample the overstoichiometric Nd atoms seem to build separate phase of Fe-Nd solid solution. None of the materials contain significant content of phases degrading magnetic characteristics, with except of minor Nd1.1Fe 4B4 one.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "NdFeB permanent magnets with various Nd content",
volume = "113",
number = "1",
pages = "279-282",
doi = "10.12693/APhysPolA.113.279"
}

Žak, T., Talijan, N. M., Ćosović, V.,& Grujić, A.. (2008). NdFeB permanent magnets with various Nd content. in Acta Physica Polonica A
Polish Academy of Sciences., 113(1), 279-282.
https://doi.org/10.12693/APhysPolA.113.279

Žak T, Talijan NM, Ćosović V, Grujić A. NdFeB permanent magnets with various Nd content. in Acta Physica Polonica A. 2008;113(1):279-282.
doi:10.12693/APhysPolA.113.279 .

Žak, Tomas, Talijan, Nadežda M., Ćosović, Vladan, Grujić, Aleksandar, "NdFeB permanent magnets with various Nd content" in Acta Physica Polonica A, 113, no. 1 (2008):279-282,
https://doi.org/10.12693/APhysPolA.113.279 . .

TY  - JOUR
AU  - Ćosović, Vladan
AU  - Žak, Tomas
AU  - Talijan, Nadežda M.
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/458
AB  - Phase composition, structure and magnetic behaviour of two low neodymium rapid-quenched (R/Q) Nd-Fe-B alloys differing in way of preparation, centrifugal atomization and melt spinning, were studied and compared using Mössbauer spectroscopy (MS), X-ray diffraction (XRD), thermomagnetic analysis (TM) and SQUID magnetic measurements. Better hard magnetic characteristics of the melt-spun material are explained on the basis of the differences in content of surface and/or interface Fe(Nd,B) phases. Their significant presence in the centrifugally atomized material lowers the content of Fe3B, Fe2B, α-Fe, and Nd2Fe14B phases that are responsible for the magnetic qualities of the material. There are just subtle differences in the phase composition of both materials after thermomagnetic measurement, where the α-Fe phase prevails as a product of thermal decomposition.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Phase composition, structure and magnetic behaviour of low neodymium rapid-quenched Nd-Fe-B alloys
VL  - 456
IS  - 1-2
SP  - 251
EP  - 256
DO  - 10.1016/j.jallcom.2007.02.018
ER  - 

@article{
author = "Ćosović, Vladan and Žak, Tomas and Talijan, Nadežda M. and Grujić, Aleksandar and Stajić-Trošić, Jasna",
year = "2008",
abstract = "Phase composition, structure and magnetic behaviour of two low neodymium rapid-quenched (R/Q) Nd-Fe-B alloys differing in way of preparation, centrifugal atomization and melt spinning, were studied and compared using Mössbauer spectroscopy (MS), X-ray diffraction (XRD), thermomagnetic analysis (TM) and SQUID magnetic measurements. Better hard magnetic characteristics of the melt-spun material are explained on the basis of the differences in content of surface and/or interface Fe(Nd,B) phases. Their significant presence in the centrifugally atomized material lowers the content of Fe3B, Fe2B, α-Fe, and Nd2Fe14B phases that are responsible for the magnetic qualities of the material. There are just subtle differences in the phase composition of both materials after thermomagnetic measurement, where the α-Fe phase prevails as a product of thermal decomposition.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Phase composition, structure and magnetic behaviour of low neodymium rapid-quenched Nd-Fe-B alloys",
volume = "456",
number = "1-2",
pages = "251-256",
doi = "10.1016/j.jallcom.2007.02.018"
}

Ćosović, V., Žak, T., Talijan, N. M., Grujić, A.,& Stajić-Trošić, J.. (2008). Phase composition, structure and magnetic behaviour of low neodymium rapid-quenched Nd-Fe-B alloys. in Journal of Alloys and Compounds
Elsevier., 456(1-2), 251-256.
https://doi.org/10.1016/j.jallcom.2007.02.018

Ćosović V, Žak T, Talijan NM, Grujić A, Stajić-Trošić J. Phase composition, structure and magnetic behaviour of low neodymium rapid-quenched Nd-Fe-B alloys. in Journal of Alloys and Compounds. 2008;456(1-2):251-256.
doi:10.1016/j.jallcom.2007.02.018 .

Ćosović, Vladan, Žak, Tomas, Talijan, Nadežda M., Grujić, Aleksandar, Stajić-Trošić, Jasna, "Phase composition, structure and magnetic behaviour of low neodymium rapid-quenched Nd-Fe-B alloys" in Journal of Alloys and Compounds, 456, no. 1-2 (2008):251-256,
https://doi.org/10.1016/j.jallcom.2007.02.018 . .

TY  - JOUR
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
AU  - Stajić-Trošić, Jasna
AU  - Žak, Tomas
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/405
AB  - Changes in the phase composition and crystallite size, as well as changes in the magnetic behaviour of Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements, was observed in regard of the optimal magnetic state of this alloy. In the optimized magnetic state, the formed nanocomposite consisted of Fe3B/Nd2Fe14B and partly of alpha-Fe with a mean crystallite size  LT  30 nm, as determined by X-ray diffraction and transmission electron microscopy. An increased amount of alpha-Fe, the presence of Nd2O3 and different Fe-B phases, as well as an increase in the mean crystallite size were observed after thermomagnetic measurements had caused a quality loss of the hard magnetic properties.
PB  - Polish Academy of Sciences
T2  - Acta Physica Polonica A
T1  - Thermomagnetic behaviour and microstructure of a rapidly quenched Nd4.5Fe77B18.5 alloy
VL  - 113
IS  - 1
SP  - 525
EP  - 528
DO  - 10.12693/APhysPolA.113.525
ER  - 

@article{
author = "Talijan, Nadežda M. and Ćosović, Vladan and Grujić, Aleksandar and Stajić-Trošić, Jasna and Žak, Tomas",
year = "2008",
abstract = "Changes in the phase composition and crystallite size, as well as changes in the magnetic behaviour of Nd4.5Fe77B18.5 alloy, caused by thermomagnetic measurements, was observed in regard of the optimal magnetic state of this alloy. In the optimized magnetic state, the formed nanocomposite consisted of Fe3B/Nd2Fe14B and partly of alpha-Fe with a mean crystallite size  LT  30 nm, as determined by X-ray diffraction and transmission electron microscopy. An increased amount of alpha-Fe, the presence of Nd2O3 and different Fe-B phases, as well as an increase in the mean crystallite size were observed after thermomagnetic measurements had caused a quality loss of the hard magnetic properties.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Thermomagnetic behaviour and microstructure of a rapidly quenched Nd4.5Fe77B18.5 alloy",
volume = "113",
number = "1",
pages = "525-528",
doi = "10.12693/APhysPolA.113.525"
}

Talijan, N. M., Ćosović, V., Grujić, A., Stajić-Trošić, J.,& Žak, T.. (2008). Thermomagnetic behaviour and microstructure of a rapidly quenched Nd4.5Fe77B18.5 alloy. in Acta Physica Polonica A
Polish Academy of Sciences., 113(1), 525-528.
https://doi.org/10.12693/APhysPolA.113.525

Talijan NM, Ćosović V, Grujić A, Stajić-Trošić J, Žak T. Thermomagnetic behaviour and microstructure of a rapidly quenched Nd4.5Fe77B18.5 alloy. in Acta Physica Polonica A. 2008;113(1):525-528.
doi:10.12693/APhysPolA.113.525 .

Talijan, Nadežda M., Ćosović, Vladan, Grujić, Aleksandar, Stajić-Trošić, Jasna, Žak, Tomas, "Thermomagnetic behaviour and microstructure of a rapidly quenched Nd4.5Fe77B18.5 alloy" in Acta Physica Polonica A, 113, no. 1 (2008):525-528,
https://doi.org/10.12693/APhysPolA.113.525 . .

TY  - JOUR
AU  - Žak, Tomas
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/333
AB  - Phase composition, structure and magnetic behaviour of two low neodymium hard magnetic materials differing in way of preparation, centrifugal atomization and melt spinning, were compared using Mössbauer spectroscopy, X-ray diffraction, thermomagnetic analysis and SQUID magnetic measurements. Better hard magnetic characteristics of the melt-spun material are explained on the basis of the differences in content of surface and/or interface Fe(Nd, B) phases. Their remarkable presence in the centrifugally atomized material lowers the content of Fe3B, Fe2B, α-Fe, and Nd2Fe14B phases that are responsible for the magnetic qualities of the material. There are just subtle differences in the phase composition of both materials after thermomagnetic measurement, where the a-Fe phase prevails as a product of thermal decomposition.
T2  - Metalurgija
T1  - Phase composition, structure and magnetic behaviour of low neodymium Nd-Fe-B permanent magnets
VL  - 13
IS  - 1
SP  - 53
EP  - 58
UR  - https://hdl.handle.net/21.15107/rcub_cer_333
ER  - 

@article{
author = "Žak, Tomas and Talijan, Nadežda M. and Ćosović, Vladan and Grujić, Aleksandar",
year = "2007",
abstract = "Phase composition, structure and magnetic behaviour of two low neodymium hard magnetic materials differing in way of preparation, centrifugal atomization and melt spinning, were compared using Mössbauer spectroscopy, X-ray diffraction, thermomagnetic analysis and SQUID magnetic measurements. Better hard magnetic characteristics of the melt-spun material are explained on the basis of the differences in content of surface and/or interface Fe(Nd, B) phases. Their remarkable presence in the centrifugally atomized material lowers the content of Fe3B, Fe2B, α-Fe, and Nd2Fe14B phases that are responsible for the magnetic qualities of the material. There are just subtle differences in the phase composition of both materials after thermomagnetic measurement, where the a-Fe phase prevails as a product of thermal decomposition.",
journal = "Metalurgija",
title = "Phase composition, structure and magnetic behaviour of low neodymium Nd-Fe-B permanent magnets",
volume = "13",
number = "1",
pages = "53-58",
url = "https://hdl.handle.net/21.15107/rcub_cer_333"
}

Žak, T., Talijan, N. M., Ćosović, V.,& Grujić, A.. (2007). Phase composition, structure and magnetic behaviour of low neodymium Nd-Fe-B permanent magnets. in Metalurgija, 13(1), 53-58.
https://hdl.handle.net/21.15107/rcub_cer_333

Žak T, Talijan NM, Ćosović V, Grujić A. Phase composition, structure and magnetic behaviour of low neodymium Nd-Fe-B permanent magnets. in Metalurgija. 2007;13(1):53-58.
https://hdl.handle.net/21.15107/rcub_cer_333 .

Žak, Tomas, Talijan, Nadežda M., Ćosović, Vladan, Grujić, Aleksandar, "Phase composition, structure and magnetic behaviour of low neodymium Nd-Fe-B permanent magnets" in Metalurgija, 13, no. 1 (2007):53-58,
https://hdl.handle.net/21.15107/rcub_cer_333 .

TY  - JOUR
AU  - Talijan, Nadežda M.
AU  - Stajić-Trošić, Jasna
AU  - Ćosović, Vladan
AU  - Grujić, Aleksandar
AU  - Nedeljković, Dragutin
AU  - Žak, Tomas
PY  - 2004
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/160
AB  - In order to examine and study evolution of microstructure during the phase transformations for applied heat treatment regime for achieving the optimal values of magnetic properties of the investigated melt-spun Nd-Fe-B alloy with low Nd content were using different techniques and methods including SEM with EDS, DTA, XRD, MS analysis and magnetic measurements also.
T2  - Metalurgija
T1  - Evolution of microstructure of melt-spun Nd-Fe-B alloy with low Nd content during the heat treatment
VL  - 10
IS  - 3
SP  - 267
EP  - 274
UR  - https://hdl.handle.net/21.15107/rcub_cer_160
ER  - 

@article{
author = "Talijan, Nadežda M. and Stajić-Trošić, Jasna and Ćosović, Vladan and Grujić, Aleksandar and Nedeljković, Dragutin and Žak, Tomas",
year = "2004",
abstract = "In order to examine and study evolution of microstructure during the phase transformations for applied heat treatment regime for achieving the optimal values of magnetic properties of the investigated melt-spun Nd-Fe-B alloy with low Nd content were using different techniques and methods including SEM with EDS, DTA, XRD, MS analysis and magnetic measurements also.",
journal = "Metalurgija",
title = "Evolution of microstructure of melt-spun Nd-Fe-B alloy with low Nd content during the heat treatment",
volume = "10",
number = "3",
pages = "267-274",
url = "https://hdl.handle.net/21.15107/rcub_cer_160"
}

Talijan, N. M., Stajić-Trošić, J., Ćosović, V., Grujić, A., Nedeljković, D.,& Žak, T.. (2004). Evolution of microstructure of melt-spun Nd-Fe-B alloy with low Nd content during the heat treatment. in Metalurgija, 10(3), 267-274.
https://hdl.handle.net/21.15107/rcub_cer_160

Talijan NM, Stajić-Trošić J, Ćosović V, Grujić A, Nedeljković D, Žak T. Evolution of microstructure of melt-spun Nd-Fe-B alloy with low Nd content during the heat treatment. in Metalurgija. 2004;10(3):267-274.
https://hdl.handle.net/21.15107/rcub_cer_160 .

Talijan, Nadežda M., Stajić-Trošić, Jasna, Ćosović, Vladan, Grujić, Aleksandar, Nedeljković, Dragutin, Žak, Tomas, "Evolution of microstructure of melt-spun Nd-Fe-B alloy with low Nd content during the heat treatment" in Metalurgija, 10, no. 3 (2004):267-274,
https://hdl.handle.net/21.15107/rcub_cer_160 .

TY  - JOUR
AU  - Talijan, Nadežda M.
AU  - Žak, Tomas
AU  - Stajić-Trošić, Jasna
AU  - Menushenkov, V
PY  - 2003
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/127
AB  - The results of X-ray analysis, Mossbauer spectroscopy and magnetic measurement for melt-spun Nd-Fe-B with low content Nd obtained by optimal selected cooling rate and heat treatment are presented to bring some new information concerning the relation between their structure and magnetic properties.
PB  - Elsevier
T2  - Journal of Magnetism and Magnetic Materials
T1  - Effect of cooling rate on the microstructure and magnetic properties of melt spun Nd-Fe-B alloys
VL  - 258
SP  - 577
EP  - 579
DO  - 10.1016/S0304-8853(02)01158-7
ER  - 

@article{
author = "Talijan, Nadežda M. and Žak, Tomas and Stajić-Trošić, Jasna and Menushenkov, V",
year = "2003",
abstract = "The results of X-ray analysis, Mossbauer spectroscopy and magnetic measurement for melt-spun Nd-Fe-B with low content Nd obtained by optimal selected cooling rate and heat treatment are presented to bring some new information concerning the relation between their structure and magnetic properties.",
publisher = "Elsevier",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Effect of cooling rate on the microstructure and magnetic properties of melt spun Nd-Fe-B alloys",
volume = "258",
pages = "577-579",
doi = "10.1016/S0304-8853(02)01158-7"
}

Talijan, N. M., Žak, T., Stajić-Trošić, J.,& Menushenkov, V.. (2003). Effect of cooling rate on the microstructure and magnetic properties of melt spun Nd-Fe-B alloys. in Journal of Magnetism and Magnetic Materials
Elsevier., 258, 577-579.
https://doi.org/10.1016/S0304-8853(02)01158-7

Talijan NM, Žak T, Stajić-Trošić J, Menushenkov V. Effect of cooling rate on the microstructure and magnetic properties of melt spun Nd-Fe-B alloys. in Journal of Magnetism and Magnetic Materials. 2003;258:577-579.
doi:10.1016/S0304-8853(02)01158-7 .

Talijan, Nadežda M., Žak, Tomas, Stajić-Trošić, Jasna, Menushenkov, V, "Effect of cooling rate on the microstructure and magnetic properties of melt spun Nd-Fe-B alloys" in Journal of Magnetism and Magnetic Materials, 258 (2003):577-579,
https://doi.org/10.1016/S0304-8853(02)01158-7 . .