Egelja, Adela

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orcid::0000-0001-6729-9076
  • Egelja, Adela (7)

Author's Bibliography

Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles

Alazreg, Asma; Vuksanović, Marija M.; Mladenović, Ivana O.; Egelja, Adela; Janković-Mandić, Ljiljana; Marinković, Aleksandar; Jančić-Heinemann, Radmila

(Elsevier, 2024)

TY  - JOUR
AU  - Alazreg, Asma
AU  - Vuksanović, Marija M.
AU  - Mladenović, Ivana O.
AU  - Egelja, Adela
AU  - Janković-Mandić, Ljiljana
AU  - Marinković, Aleksandar
AU  - Jančić-Heinemann, Radmila
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6694
AB  - The MgAl-LDH@SiO2 particles are prepared by the coprecipitation of LDH on silica originating from plants.
Particles are of submicron size and are well dispersed in the matrix. Composites consisting of PMMA reinforced
with MgAl-LDH@SiO2 particles have improved hardness and resistance to viscoelastic deformation, as tested by
microhardness measurements.
PB  - Elsevier
T2  - Materials Letters
T1  - Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles
VL  - 354
SP  - 135354
DO  - 10.1016/j.matlet.2023.135354
ER  - 
@article{
author = "Alazreg, Asma and Vuksanović, Marija M. and Mladenović, Ivana O. and Egelja, Adela and Janković-Mandić, Ljiljana and Marinković, Aleksandar and Jančić-Heinemann, Radmila",
year = "2024",
abstract = "The MgAl-LDH@SiO2 particles are prepared by the coprecipitation of LDH on silica originating from plants.
Particles are of submicron size and are well dispersed in the matrix. Composites consisting of PMMA reinforced
with MgAl-LDH@SiO2 particles have improved hardness and resistance to viscoelastic deformation, as tested by
microhardness measurements.",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles",
volume = "354",
pages = "135354",
doi = "10.1016/j.matlet.2023.135354"
}
Alazreg, A., Vuksanović, M. M., Mladenović, I. O., Egelja, A., Janković-Mandić, L., Marinković, A.,& Jančić-Heinemann, R.. (2024). Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles. in Materials Letters
Elsevier., 354, 135354.
https://doi.org/10.1016/j.matlet.2023.135354
Alazreg A, Vuksanović MM, Mladenović IO, Egelja A, Janković-Mandić L, Marinković A, Jančić-Heinemann R. Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles. in Materials Letters. 2024;354:135354.
doi:10.1016/j.matlet.2023.135354 .
Alazreg, Asma, Vuksanović, Marija M., Mladenović, Ivana O., Egelja, Adela, Janković-Mandić, Ljiljana, Marinković, Aleksandar, Jančić-Heinemann, Radmila, "Dental material based on poly(methyl methacrylate) with magnesium-aluminum layered double hydroxide (MgAl-LDH) on bio-silica particles" in Materials Letters, 354 (2024):135354,
https://doi.org/10.1016/j.matlet.2023.135354 . .
1

Mechanical properties of acrylate matrix composite reinforced with manganese-aluminum layered double hydroxide

Alazreg, Asma; Vuksanović, Marija M.; Egelja, Adela; Mladenović, Ivana O.; Radovanović, Željko; Petrović, Miloš; Marinković, Aleksandar; Jančić-Heinemann, Radmila

(Willey, 2023)

TY  - JOUR
AU  - Alazreg, Asma
AU  - Vuksanović, Marija M.
AU  - Egelja, Adela
AU  - Mladenović, Ivana O.
AU  - Radovanović, Željko
AU  - Petrović, Miloš
AU  - Marinković, Aleksandar
AU  - Jančić-Heinemann, Radmila
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6582
AB  - Acrylate polymers are used in several applications such as dentistry, medicine,
and industry. The modification of their properties using the reinforcement is
of key importance for the possible applications. Layered double hydroxides are
materials that are easily synthesized by several techniques giving the possibility to modulate the chemical composition and morphology of the reinforcement and they consist of a divalent and a trivalent anion hydroxide and the
layers can be exfoliated and thus provide a material interesting for composite
reinforcement. In this paper, Mn was used as a divalent and Al as a trivalent
cation. The obtained particles were used as reinforcement for the preparation
of composites in 1, 3, and 5 wt% quantities and prepared samples were compared to the matrix consisting of PMMA. Physical mechanical properties of the
sample having the best mechanical properties (with 3 wt% of MnAl-LDH
filers) exhibited 6.38% modulus of elasticity, 27% hardness, and 10% tensile
strength improved values compared to the clear PMMA matrix. Toughness
was lowered in this sort of composite compared to the pure matrix.
PB  - Willey
T2  - Polymer Composites
T1  - Mechanical properties of acrylate matrix composite reinforced with manganese-aluminum layered double hydroxide
VL  - 44
IS  - 10
SP  - 6783
EP  - 6783
DO  - https://doi.org/10.1002/pc.27597
ER  - 
@article{
author = "Alazreg, Asma and Vuksanović, Marija M. and Egelja, Adela and Mladenović, Ivana O. and Radovanović, Željko and Petrović, Miloš and Marinković, Aleksandar and Jančić-Heinemann, Radmila",
year = "2023",
abstract = "Acrylate polymers are used in several applications such as dentistry, medicine,
and industry. The modification of their properties using the reinforcement is
of key importance for the possible applications. Layered double hydroxides are
materials that are easily synthesized by several techniques giving the possibility to modulate the chemical composition and morphology of the reinforcement and they consist of a divalent and a trivalent anion hydroxide and the
layers can be exfoliated and thus provide a material interesting for composite
reinforcement. In this paper, Mn was used as a divalent and Al as a trivalent
cation. The obtained particles were used as reinforcement for the preparation
of composites in 1, 3, and 5 wt% quantities and prepared samples were compared to the matrix consisting of PMMA. Physical mechanical properties of the
sample having the best mechanical properties (with 3 wt% of MnAl-LDH
filers) exhibited 6.38% modulus of elasticity, 27% hardness, and 10% tensile
strength improved values compared to the clear PMMA matrix. Toughness
was lowered in this sort of composite compared to the pure matrix.",
publisher = "Willey",
journal = "Polymer Composites",
title = "Mechanical properties of acrylate matrix composite reinforced with manganese-aluminum layered double hydroxide",
volume = "44",
number = "10",
pages = "6783-6783",
doi = "https://doi.org/10.1002/pc.27597"
}
Alazreg, A., Vuksanović, M. M., Egelja, A., Mladenović, I. O., Radovanović, Ž., Petrović, M., Marinković, A.,& Jančić-Heinemann, R.. (2023). Mechanical properties of acrylate matrix composite reinforced with manganese-aluminum layered double hydroxide. in Polymer Composites
Willey., 44(10), 6783-6783.
https://doi.org/https://doi.org/10.1002/pc.27597
Alazreg A, Vuksanović MM, Egelja A, Mladenović IO, Radovanović Ž, Petrović M, Marinković A, Jančić-Heinemann R. Mechanical properties of acrylate matrix composite reinforced with manganese-aluminum layered double hydroxide. in Polymer Composites. 2023;44(10):6783-6783.
doi:https://doi.org/10.1002/pc.27597 .
Alazreg, Asma, Vuksanović, Marija M., Egelja, Adela, Mladenović, Ivana O., Radovanović, Željko, Petrović, Miloš, Marinković, Aleksandar, Jančić-Heinemann, Radmila, "Mechanical properties of acrylate matrix composite reinforced with manganese-aluminum layered double hydroxide" in Polymer Composites, 44, no. 10 (2023):6783-6783,
https://doi.org/https://doi.org/10.1002/pc.27597 . .

Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a

Vuksanović, Marija M.; Milošević, Milena D.; Knežević, Nataša; Egelja, Adela; Janković-Mandić, Ljiljana; Mladenović, Ivana O.; Marinković, Aleksandar D.

(Beograd : Savez inženjera i tehničara Srbije, 2023)

TY  - JOUR
AU  - Vuksanović, Marija M.
AU  - Milošević, Milena D.
AU  - Knežević, Nataša
AU  - Egelja, Adela
AU  - Janković-Mandić, Ljiljana
AU  - Mladenović, Ivana O.
AU  - Marinković, Aleksandar D.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6583
AB  - Predmet ovog istraživanja je postupak proizvodnje regranulata polivinil hlorida (PVC) korišćenjem
plastifikatora sintetisanog iz recikliranog poli(etilen tereftalata) (PET). Na ovaj način je sintetisan
plastifikator koji ne predstavlja rizik po zdravlje ljudi i životnu sredinu u skladu sa prinicima hemijskog
lizinga i zelene hemije. Dobijeni plastifikator je okarakterisan primenom elementalne analize, FTIR, i
NMR spektroskopije i određivanjem hidroksilnog i kiselinskog broja. Ispitivana su mehanička svojstva
materijala dobijenih na bazi recikliranog PVC i plastifikatora iz PET-a prema standardnim metodama
AB  - The subject of this research is the production process of polyvinyl chloride (PVC) regranulate using a plasticizer synthesized from recycled poly(ethylene terephthalate) (PET). In this way, a plasticizer was synthesized that does not pose a risk to human health and the environment in accordance with the principles of chemical leasing and green chemistry. The obtained plasticizer was characterized using elemental analysis, FTIR, and NMR spectroscopy and determination of hydroxyl and acid number. The mechanical properties of materials obtained on the basis of recycled PVC and plasticizers from PET were tested according to standard methods.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a
T1  - Testing of the mechanical properties of reggranulate PVC with the addition of plasticizer from waste PET
VL  - 78
IS  - 4
SP  - 389
EP  - 394
DO  - 10.5937/tehnika2304389V
ER  - 
@article{
author = "Vuksanović, Marija M. and Milošević, Milena D. and Knežević, Nataša and Egelja, Adela and Janković-Mandić, Ljiljana and Mladenović, Ivana O. and Marinković, Aleksandar D.",
year = "2023",
abstract = "Predmet ovog istraživanja je postupak proizvodnje regranulata polivinil hlorida (PVC) korišćenjem
plastifikatora sintetisanog iz recikliranog poli(etilen tereftalata) (PET). Na ovaj način je sintetisan
plastifikator koji ne predstavlja rizik po zdravlje ljudi i životnu sredinu u skladu sa prinicima hemijskog
lizinga i zelene hemije. Dobijeni plastifikator je okarakterisan primenom elementalne analize, FTIR, i
NMR spektroskopije i određivanjem hidroksilnog i kiselinskog broja. Ispitivana su mehanička svojstva
materijala dobijenih na bazi recikliranog PVC i plastifikatora iz PET-a prema standardnim metodama, The subject of this research is the production process of polyvinyl chloride (PVC) regranulate using a plasticizer synthesized from recycled poly(ethylene terephthalate) (PET). In this way, a plasticizer was synthesized that does not pose a risk to human health and the environment in accordance with the principles of chemical leasing and green chemistry. The obtained plasticizer was characterized using elemental analysis, FTIR, and NMR spectroscopy and determination of hydroxyl and acid number. The mechanical properties of materials obtained on the basis of recycled PVC and plasticizers from PET were tested according to standard methods.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a, Testing of the mechanical properties of reggranulate PVC with the addition of plasticizer from waste PET",
volume = "78",
number = "4",
pages = "389-394",
doi = "10.5937/tehnika2304389V"
}
Vuksanović, M. M., Milošević, M. D., Knežević, N., Egelja, A., Janković-Mandić, L., Mladenović, I. O.,& Marinković, A. D.. (2023). Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a. in Tehnika
Beograd : Savez inženjera i tehničara Srbije., 78(4), 389-394.
https://doi.org/10.5937/tehnika2304389V
Vuksanović MM, Milošević MD, Knežević N, Egelja A, Janković-Mandić L, Mladenović IO, Marinković AD. Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a. in Tehnika. 2023;78(4):389-394.
doi:10.5937/tehnika2304389V .
Vuksanović, Marija M., Milošević, Milena D., Knežević, Nataša, Egelja, Adela, Janković-Mandić, Ljiljana, Mladenović, Ivana O., Marinković, Aleksandar D., "Ispitivanje mehaničkih svojstava regranulata PVC-a sa dodatkom plastifikatora iz otpadnog PET-a" in Tehnika, 78, no. 4 (2023):389-394,
https://doi.org/10.5937/tehnika2304389V . .

Mechanical properties of composite material reinforced with silica particles obtained from biomass modified with double-layered hydroxides

Vuksanović, Marija; Egelja, Adela; Savić, Andrija; Milošević, Milena; Mladenović, Ivana; Marinković, Aleksandar; Jančić- Heinemann, Radmila

(Banja Luka, Republic of Srpska, B&H : University PIM, 2022)

TY  - CONF
AU  - Vuksanović, Marija
AU  - Egelja, Adela
AU  - Savić, Andrija
AU  - Milošević, Milena
AU  - Mladenović, Ivana
AU  - Marinković, Aleksandar
AU  - Jančić- Heinemann, Radmila
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5996
AB  - Silica particles were produced form rice husk and used as reinforcement in
the polymer matrix. The obtained silica particles' surfaces were modified with
layered double hydroxides, which enabled better reinforcement in the PMMA matrix.
Coprecipitation was used to synthetize Fe Al layered double hydroxides (LDH) with
a Fe:Al cation content of 3:1 and an FeAl-LDH: silica ratio of 1:1. X-ray diffraction,
Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy
with EDS were used to characterize the synthesized particles. The prepared particle
amounts in the PMMA matrix were 1, 3, and 5 wt. %. The purpose of this study was
to see if the obtained SiO2 particles, as well as their modification with FeAl-LDH,
had any effect on the mechanical properties of polymer composite materials. The
mechanical characterization of obtained composites was done using Vickers
microindentation tests and impact testing. The Vickers micro-hardness test showed
that the addition of reinforcement increases the hardness of the composite. When
compared to the matrix, the toughness of the composite material with a higher
content of particles (5 wt. %) in the energy absorbed in this impact test was three
times higher.
PB  - Banja Luka, Republic of Srpska, B&H : University PIM
C3  - Book of Abstracts - XI international conference of social and technological development, June, 02-05, 2022, Trebinje, Republic of Srpska, B&H
T1  - Mechanical properties of composite material reinforced with silica particles obtained from biomass modified with double-layered hydroxides
UR  - https://hdl.handle.net/21.15107/rcub_cer_5996
ER  - 
@conference{
author = "Vuksanović, Marija and Egelja, Adela and Savić, Andrija and Milošević, Milena and Mladenović, Ivana and Marinković, Aleksandar and Jančić- Heinemann, Radmila",
year = "2022",
abstract = "Silica particles were produced form rice husk and used as reinforcement in
the polymer matrix. The obtained silica particles' surfaces were modified with
layered double hydroxides, which enabled better reinforcement in the PMMA matrix.
Coprecipitation was used to synthetize Fe Al layered double hydroxides (LDH) with
a Fe:Al cation content of 3:1 and an FeAl-LDH: silica ratio of 1:1. X-ray diffraction,
Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy
with EDS were used to characterize the synthesized particles. The prepared particle
amounts in the PMMA matrix were 1, 3, and 5 wt. %. The purpose of this study was
to see if the obtained SiO2 particles, as well as their modification with FeAl-LDH,
had any effect on the mechanical properties of polymer composite materials. The
mechanical characterization of obtained composites was done using Vickers
microindentation tests and impact testing. The Vickers micro-hardness test showed
that the addition of reinforcement increases the hardness of the composite. When
compared to the matrix, the toughness of the composite material with a higher
content of particles (5 wt. %) in the energy absorbed in this impact test was three
times higher.",
publisher = "Banja Luka, Republic of Srpska, B&H : University PIM",
journal = "Book of Abstracts - XI international conference of social and technological development, June, 02-05, 2022, Trebinje, Republic of Srpska, B&H",
title = "Mechanical properties of composite material reinforced with silica particles obtained from biomass modified with double-layered hydroxides",
url = "https://hdl.handle.net/21.15107/rcub_cer_5996"
}
Vuksanović, M., Egelja, A., Savić, A., Milošević, M., Mladenović, I., Marinković, A.,& Jančić- Heinemann, R.. (2022). Mechanical properties of composite material reinforced with silica particles obtained from biomass modified with double-layered hydroxides. in Book of Abstracts - XI international conference of social and technological development, June, 02-05, 2022, Trebinje, Republic of Srpska, B&H
Banja Luka, Republic of Srpska, B&H : University PIM..
https://hdl.handle.net/21.15107/rcub_cer_5996
Vuksanović M, Egelja A, Savić A, Milošević M, Mladenović I, Marinković A, Jančić- Heinemann R. Mechanical properties of composite material reinforced with silica particles obtained from biomass modified with double-layered hydroxides. in Book of Abstracts - XI international conference of social and technological development, June, 02-05, 2022, Trebinje, Republic of Srpska, B&H. 2022;.
https://hdl.handle.net/21.15107/rcub_cer_5996 .
Vuksanović, Marija, Egelja, Adela, Savić, Andrija, Milošević, Milena, Mladenović, Ivana, Marinković, Aleksandar, Jančić- Heinemann, Radmila, "Mechanical properties of composite material reinforced with silica particles obtained from biomass modified with double-layered hydroxides" in Book of Abstracts - XI international conference of social and technological development, June, 02-05, 2022, Trebinje, Republic of Srpska, B&H (2022),
https://hdl.handle.net/21.15107/rcub_cer_5996 .

Effect of boric acid on the porosity of clay and diatomite monoliths

Kokunešoski, Maja; Šaponjić, Aleksandra; Stanković, Miroslav; Majstorovic, Jelena; Egelja, Adela; Ilić, Svetlana; Matović, Branko

(Elsevier Sci Ltd, Oxford, 2016)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Stanković, Miroslav
AU  - Majstorovic, Jelena
AU  - Egelja, Adela
AU  - Ilić, Svetlana
AU  - Matović, Branko
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1961
AB  - Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Effect of boric acid on the porosity of clay and diatomite monoliths
VL  - 42
IS  - 5
SP  - 6383
EP  - 6390
DO  - 10.1016/j.ceramint.2016.01.034
ER  - 
@article{
author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Stanković, Miroslav and Majstorovic, Jelena and Egelja, Adela and Ilić, Svetlana and Matović, Branko",
year = "2016",
abstract = "Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effect of boric acid on the porosity of clay and diatomite monoliths",
volume = "42",
number = "5",
pages = "6383-6390",
doi = "10.1016/j.ceramint.2016.01.034"
}
Kokunešoski, M., Šaponjić, A., Stanković, M., Majstorovic, J., Egelja, A., Ilić, S.,& Matović, B.. (2016). Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International
Elsevier Sci Ltd, Oxford., 42(5), 6383-6390.
https://doi.org/10.1016/j.ceramint.2016.01.034
Kokunešoski M, Šaponjić A, Stanković M, Majstorovic J, Egelja A, Ilić S, Matović B. Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International. 2016;42(5):6383-6390.
doi:10.1016/j.ceramint.2016.01.034 .
Kokunešoski, Maja, Šaponjić, Aleksandra, Stanković, Miroslav, Majstorovic, Jelena, Egelja, Adela, Ilić, Svetlana, Matović, Branko, "Effect of boric acid on the porosity of clay and diatomite monoliths" in Ceramics International, 42, no. 5 (2016):6383-6390,
https://doi.org/10.1016/j.ceramint.2016.01.034 . .
11
8
12

Synthesis of Highly Porous Al2O3-YAG Composite Ceramics

Egelja, Adela; Majstorovic, Jelena; Vukovic, Nikola; Stanković, Miroslav; Bucevac, Dusan

(International Institute for the Science of Sintering, Beograd, 2016)

TY  - JOUR
AU  - Egelja, Adela
AU  - Majstorovic, Jelena
AU  - Vukovic, Nikola
AU  - Stanković, Miroslav
AU  - Bucevac, Dusan
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2046
AB  - Al2O3-YAG composite was obtained by sintering of porous Al2O3 preforms infiltrated with water solution of aluminium nitrate nonahydrate, Al(NO3)(3)center dot 9H(2)O and yttrium nitrate hexahydrate, Y(NO3)(3)center dot 6H(2)O. Al2O3 preforms with porosity varying from 26 to 50% were obtained after sintering at temperature ranging from 1100 to 1500 degrees C. Sintering of the infiltrated Al2O3 preforms led to formation of YAG particles due to reaction between Y2O3 and Al2O3 at high temperature. It was found that variation of porosity of alumina preforms and sintering temperature is an effective way to fabricate Al2O3-YAG composite with an unusual combination of properties. Open porosity was in the range 15-35%, specific surface was 0.6-6.1 m(2)/g, pore size was 150-900 nm whereas compressive strength was from 50 to 250 MPa. The effect of sintering temperature on YAG formation and phase composition were investigated using X-ray diffractometry whereas microstructure of the composite was analysed by scanning electron microscopy.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - Synthesis of Highly Porous Al2O3-YAG Composite Ceramics
VL  - 48
IS  - 3
SP  - 303
EP  - 315
DO  - 10.2298/SOS1603303E
ER  - 
@article{
author = "Egelja, Adela and Majstorovic, Jelena and Vukovic, Nikola and Stanković, Miroslav and Bucevac, Dusan",
year = "2016",
abstract = "Al2O3-YAG composite was obtained by sintering of porous Al2O3 preforms infiltrated with water solution of aluminium nitrate nonahydrate, Al(NO3)(3)center dot 9H(2)O and yttrium nitrate hexahydrate, Y(NO3)(3)center dot 6H(2)O. Al2O3 preforms with porosity varying from 26 to 50% were obtained after sintering at temperature ranging from 1100 to 1500 degrees C. Sintering of the infiltrated Al2O3 preforms led to formation of YAG particles due to reaction between Y2O3 and Al2O3 at high temperature. It was found that variation of porosity of alumina preforms and sintering temperature is an effective way to fabricate Al2O3-YAG composite with an unusual combination of properties. Open porosity was in the range 15-35%, specific surface was 0.6-6.1 m(2)/g, pore size was 150-900 nm whereas compressive strength was from 50 to 250 MPa. The effect of sintering temperature on YAG formation and phase composition were investigated using X-ray diffractometry whereas microstructure of the composite was analysed by scanning electron microscopy.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "Synthesis of Highly Porous Al2O3-YAG Composite Ceramics",
volume = "48",
number = "3",
pages = "303-315",
doi = "10.2298/SOS1603303E"
}
Egelja, A., Majstorovic, J., Vukovic, N., Stanković, M.,& Bucevac, D.. (2016). Synthesis of Highly Porous Al2O3-YAG Composite Ceramics. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 48(3), 303-315.
https://doi.org/10.2298/SOS1603303E
Egelja A, Majstorovic J, Vukovic N, Stanković M, Bucevac D. Synthesis of Highly Porous Al2O3-YAG Composite Ceramics. in Science of Sintering. 2016;48(3):303-315.
doi:10.2298/SOS1603303E .
Egelja, Adela, Majstorovic, Jelena, Vukovic, Nikola, Stanković, Miroslav, Bucevac, Dusan, "Synthesis of Highly Porous Al2O3-YAG Composite Ceramics" in Science of Sintering, 48, no. 3 (2016):303-315,
https://doi.org/10.2298/SOS1603303E . .
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Porous ceramic monoliths based on diatomite

Šaponjić, Aleksandra; Stanković, Miroslav; Majstorovic, Jelena; Matović, Branko; Ilić, Svetlana; Egelja, Adela; Kokunešoski, Maja

(Elsevier Sci Ltd, Oxford, 2015)

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Stanković, Miroslav
AU  - Majstorovic, Jelena
AU  - Matović, Branko
AU  - Ilić, Svetlana
AU  - Egelja, Adela
AU  - Kokunešoski, Maja
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1654
AB  - Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to characterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Porous ceramic monoliths based on diatomite
VL  - 41
IS  - 8
SP  - 9745
EP  - 9752
DO  - 10.1016/j.ceramint.2015.04.046
ER  - 
@article{
author = "Šaponjić, Aleksandra and Stanković, Miroslav and Majstorovic, Jelena and Matović, Branko and Ilić, Svetlana and Egelja, Adela and Kokunešoski, Maja",
year = "2015",
abstract = "Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to characterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Porous ceramic monoliths based on diatomite",
volume = "41",
number = "8",
pages = "9745-9752",
doi = "10.1016/j.ceramint.2015.04.046"
}
Šaponjić, A., Stanković, M., Majstorovic, J., Matović, B., Ilić, S., Egelja, A.,& Kokunešoski, M.. (2015). Porous ceramic monoliths based on diatomite. in Ceramics International
Elsevier Sci Ltd, Oxford., 41(8), 9745-9752.
https://doi.org/10.1016/j.ceramint.2015.04.046
Šaponjić A, Stanković M, Majstorovic J, Matović B, Ilić S, Egelja A, Kokunešoski M. Porous ceramic monoliths based on diatomite. in Ceramics International. 2015;41(8):9745-9752.
doi:10.1016/j.ceramint.2015.04.046 .
Šaponjić, Aleksandra, Stanković, Miroslav, Majstorovic, Jelena, Matović, Branko, Ilić, Svetlana, Egelja, Adela, Kokunešoski, Maja, "Porous ceramic monoliths based on diatomite" in Ceramics International, 41, no. 8 (2015):9745-9752,
https://doi.org/10.1016/j.ceramint.2015.04.046 . .
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