TY  - JOUR
AU  - Bučko, Mihael
AU  - Riđošić, Marija
AU  - Kovačina, Jovanka
AU  - Tomić, Milorad V.
AU  - Bajat, Jelena
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5312
AB  - The aim of this study is development and characterization of the novel Zn-Mn/Al2O3 composite coatings. The coatings 
were electrodeposited with constant current density on steel, from chloride solution, without any commercial additives. The 
Zn−Mn alloy coatings that show high corrosion resistance, may be used in future as an alternative to cadmium coatings. 
However, the pure Zn and Zn alloy coatings are characterized with poor mechanical properties. Therefore, in this work the 
alumina particles were incorporated into the Zn-Mn matrix, and the hardness and corrosion resistance of the obtained 
composite coatings were tested. The mechanical and ultrasound agitation were used to achieve good dispersion of plating 
solution and homogeneous co-deposition of second phase. The goal was to examine the effect of the agitation type in bath, 
on the attributes of the deposited composite coatings. The incorporation of Al2O3 particles was enhanced when the 
mechanical agitation of the solution was applied. However, in case that this agitation method was used, the agglomeration of 
the alumina particles occurred. In contrast, when an ultrasonic agitation of the plating solution was applied, the uniform 
distribution of the alumina particles could be achieved. The presence of particles in the matrix, along with applied 
ultrasound, resulted in grain refinement and homogeneous microstructure. The Al2O3 nanoparticles incorporated in Zn-Mn 
alloy matrix, resulted in a significant increment in the indentation hardness and a modest increase in the coating corrosion 
resistance. However, the coating hardness increased with alumina addition, only in case when an ultrasonic agitation of the 
electrodeposition solution was used.
PB  - National Institute of Science Communication and Policy Research
T2  - Indian Journal of Engineering & Materials Sciences
T1  - Hardness and corrosion resistance of Zn−Mn/Al2O3 composite coatings  produced by electrochemical deposition
VL  - 29
SP  - 540
EP  - 549
DO  - 10.56042/ijems.v29i4.47785
ER  - 

@article{
author = "Bučko, Mihael and Riđošić, Marija and Kovačina, Jovanka and Tomić, Milorad V. and Bajat, Jelena",
year = "2022",
abstract = "The aim of this study is development and characterization of the novel Zn-Mn/Al2O3 composite coatings. The coatings 
were electrodeposited with constant current density on steel, from chloride solution, without any commercial additives. The 
Zn−Mn alloy coatings that show high corrosion resistance, may be used in future as an alternative to cadmium coatings. 
However, the pure Zn and Zn alloy coatings are characterized with poor mechanical properties. Therefore, in this work the 
alumina particles were incorporated into the Zn-Mn matrix, and the hardness and corrosion resistance of the obtained 
composite coatings were tested. The mechanical and ultrasound agitation were used to achieve good dispersion of plating 
solution and homogeneous co-deposition of second phase. The goal was to examine the effect of the agitation type in bath, 
on the attributes of the deposited composite coatings. The incorporation of Al2O3 particles was enhanced when the 
mechanical agitation of the solution was applied. However, in case that this agitation method was used, the agglomeration of 
the alumina particles occurred. In contrast, when an ultrasonic agitation of the plating solution was applied, the uniform 
distribution of the alumina particles could be achieved. The presence of particles in the matrix, along with applied 
ultrasound, resulted in grain refinement and homogeneous microstructure. The Al2O3 nanoparticles incorporated in Zn-Mn 
alloy matrix, resulted in a significant increment in the indentation hardness and a modest increase in the coating corrosion 
resistance. However, the coating hardness increased with alumina addition, only in case when an ultrasonic agitation of the 
electrodeposition solution was used.",
publisher = "National Institute of Science Communication and Policy Research",
journal = "Indian Journal of Engineering & Materials Sciences",
title = "Hardness and corrosion resistance of Zn−Mn/Al2O3 composite coatings  produced by electrochemical deposition",
volume = "29",
pages = "540-549",
doi = "10.56042/ijems.v29i4.47785"
}

Bučko, M., Riđošić, M., Kovačina, J., Tomić, M. V.,& Bajat, J.. (2022). Hardness and corrosion resistance of Zn−Mn/Al2O3 composite coatings  produced by electrochemical deposition. in Indian Journal of Engineering & Materials Sciences
National Institute of Science Communication and Policy Research., 29, 540-549.
https://doi.org/10.56042/ijems.v29i4.47785

Bučko M, Riđošić M, Kovačina J, Tomić MV, Bajat J. Hardness and corrosion resistance of Zn−Mn/Al2O3 composite coatings  produced by electrochemical deposition. in Indian Journal of Engineering & Materials Sciences. 2022;29:540-549.
doi:10.56042/ijems.v29i4.47785 .

Bučko, Mihael, Riđošić, Marija, Kovačina, Jovanka, Tomić, Milorad V., Bajat, Jelena, "Hardness and corrosion resistance of Zn−Mn/Al2O3 composite coatings  produced by electrochemical deposition" in Indian Journal of Engineering & Materials Sciences, 29 (2022):540-549,
https://doi.org/10.56042/ijems.v29i4.47785 . .

TY  - JOUR
AU  - Riđošić, Marija
AU  - Nikolić, Nebojša D.
AU  - Salicio-Paz, Asier
AU  - García-Lecina, Eva
AU  - Živković, Ljiljana S.
AU  - Bajat, Jelena
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4525
AB  - Electrodeposition and characterization of novel ceria-doped Zn-Co composite coatings was
the main goal of this research. Electrodeposited composite coatings were compared to pure Zn-Co
coatings obtained under the same conditions. The effect of two ceria sources, powder and home-made sol, on the morphology and corrosion resistance of the composite coatings was determined. During the electrodeposition process the plating solution was successfully agitated in an ultrasound bath. The source of the particles was found to influence the stability and dispersity of plating solutions. The application of ceria sol resulted in an increase of the ceria content in the resulting coating and favored the refinement from cauliflower-like morphology (Zn-Co) to uniform and compact corallike structure (Zn-Co-CeO2 sol). The corrosion resistance of the composite coatings was enhanced compared to bare Zn-Co as evidenced by electrochemical impedance spectroscopy and scanning Kelvin probe results. Zn-Co doped with ceria particles originating from ceria sol exhibited superior corrosion resistance compared to Zn-Co-CeO2 (powder) coatings. The self-healing rate of artificial defect was calculated based on measured Volta potential difference for which Zn-Co-CeO2 (sol) coatings exhibited a self-healing rate of 73.28% in a chloride-rich environment.
PB  - MDPI
T2  - Metals
T1  - Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings
VL  - 11
IS  - 5
SP  - 704
DO  - 10.3390/met11050704
ER  - 

@article{
author = "Riđošić, Marija and Nikolić, Nebojša D. and Salicio-Paz, Asier and García-Lecina, Eva and Živković, Ljiljana S. and Bajat, Jelena",
year = "2021",
abstract = "Electrodeposition and characterization of novel ceria-doped Zn-Co composite coatings was
the main goal of this research. Electrodeposited composite coatings were compared to pure Zn-Co
coatings obtained under the same conditions. The effect of two ceria sources, powder and home-made sol, on the morphology and corrosion resistance of the composite coatings was determined. During the electrodeposition process the plating solution was successfully agitated in an ultrasound bath. The source of the particles was found to influence the stability and dispersity of plating solutions. The application of ceria sol resulted in an increase of the ceria content in the resulting coating and favored the refinement from cauliflower-like morphology (Zn-Co) to uniform and compact corallike structure (Zn-Co-CeO2 sol). The corrosion resistance of the composite coatings was enhanced compared to bare Zn-Co as evidenced by electrochemical impedance spectroscopy and scanning Kelvin probe results. Zn-Co doped with ceria particles originating from ceria sol exhibited superior corrosion resistance compared to Zn-Co-CeO2 (powder) coatings. The self-healing rate of artificial defect was calculated based on measured Volta potential difference for which Zn-Co-CeO2 (sol) coatings exhibited a self-healing rate of 73.28% in a chloride-rich environment.",
publisher = "MDPI",
journal = "Metals",
title = "Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings",
volume = "11",
number = "5",
pages = "704",
doi = "10.3390/met11050704"
}

Riđošić, M., Nikolić, N. D., Salicio-Paz, A., García-Lecina, E., Živković, L. S.,& Bajat, J.. (2021). Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings. in Metals
MDPI., 11(5), 704.
https://doi.org/10.3390/met11050704

Riđošić M, Nikolić ND, Salicio-Paz A, García-Lecina E, Živković LS, Bajat J. Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings. in Metals. 2021;11(5):704.
doi:10.3390/met11050704 .

Riđošić, Marija, Nikolić, Nebojša D., Salicio-Paz, Asier, García-Lecina, Eva, Živković, Ljiljana S., Bajat, Jelena, "Zn-Co-CeO2 vs. Zn-Co Coatings: Effect of CeO2 Sol in the Enhancement of the Corrosion Performance of Electrodeposited Composite Coatings" in Metals, 11, no. 5 (2021):704,
https://doi.org/10.3390/met11050704 . .

TY  - CONF
AU  - Riđošić, Marija
AU  - Tomić, Milorad V.
AU  - Fuchs-Godec, Regina
AU  - Pavlović, Miroslav M.
AU  - Pavlović, Miomir
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2647
AB  - Aim of this work was to determine influence of current density on the roughness of the
electrodeposited zinc coatings. Electrodeposition carried out from two same solutions containing
different brightening additives. Furfural (in solution I) and dextrin (in solution II) were used as
additives. Influences of the thickness of the coatings on the surface roughness depending of the
current density and time of deposition and effect of the added additives on the structure of the coatings
were also studied.
Electrodeposition of the zinc coatings was done galvanostatically at current densities of 1, 2 and 4 A
dm-2. Times of electrodeposition were 10, 20 and 30 minutes. Pure zinc was used as anode, and steel
with unknown composition was used as cathode. All experiments were done at room temperature,
baths volume were 500 cm3.
Obtained results show that zinc coatings obtained from solution II have lower roughness than those
deposited from solution I. Current density and thickness of the coatings does not have large influence
on the roughness. The roughness values are from 0.41 μm to 1.219 μm (solution I) and from 0.316
μm to 0.812 μm (solution II). Current efficiency in solution I is 92.98-94.55% and in solution II 91.5-
96.91%. Coatings from solution II have better structure compared to coatings obtained from solution
I, so it can be concluded that dextrin is better brightening additive than furfural in used sulphate
baths.
PB  - Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja
PB  - Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala  ( UISKOZAM )
C3  - Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia
T1  - Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths
SP  - 151
EP  - 152
UR  - https://hdl.handle.net/21.15107/rcub_cer_2647
ER  - 

@conference{
author = "Riđošić, Marija and Tomić, Milorad V. and Fuchs-Godec, Regina and Pavlović, Miroslav M. and Pavlović, Miomir",
year = "2018",
abstract = "Aim of this work was to determine influence of current density on the roughness of the
electrodeposited zinc coatings. Electrodeposition carried out from two same solutions containing
different brightening additives. Furfural (in solution I) and dextrin (in solution II) were used as
additives. Influences of the thickness of the coatings on the surface roughness depending of the
current density and time of deposition and effect of the added additives on the structure of the coatings
were also studied.
Electrodeposition of the zinc coatings was done galvanostatically at current densities of 1, 2 and 4 A
dm-2. Times of electrodeposition were 10, 20 and 30 minutes. Pure zinc was used as anode, and steel
with unknown composition was used as cathode. All experiments were done at room temperature,
baths volume were 500 cm3.
Obtained results show that zinc coatings obtained from solution II have lower roughness than those
deposited from solution I. Current density and thickness of the coatings does not have large influence
on the roughness. The roughness values are from 0.41 μm to 1.219 μm (solution I) and from 0.316
μm to 0.812 μm (solution II). Current efficiency in solution I is 92.98-94.55% and in solution II 91.5-
96.91%. Coatings from solution II have better structure compared to coatings obtained from solution
I, so it can be concluded that dextrin is better brightening additive than furfural in used sulphate
baths.",
publisher = "Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja, Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala  ( UISKOZAM )",
journal = "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia",
title = "Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths",
pages = "151-152",
url = "https://hdl.handle.net/21.15107/rcub_cer_2647"
}

Riđošić, M., Tomić, M. V., Fuchs-Godec, R., Pavlović, M. M.,& Pavlović, M.. (2018). Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths. in Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia
Beograd : Naučna ustanova za hemiju, tehnologiju i metalurgiju, Institut od nacionalnog značaja., 151-152.
https://hdl.handle.net/21.15107/rcub_cer_2647

Riđošić M, Tomić MV, Fuchs-Godec R, Pavlović MM, Pavlović M. Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths. in Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia. 2018;:151-152.
https://hdl.handle.net/21.15107/rcub_cer_2647 .

Riđošić, Marija, Tomić, Milorad V., Fuchs-Godec, Regina, Pavlović, Miroslav M., Pavlović, Miomir, "Impact of current density on the surface roughness of electrodeposited zinc coatings from sulphate baths" in Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine [Elektronski izvor] : knjiga radova = Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection : proceedings / XX YuCorr Međunarodna konferencija = XX YuCorr International Conference, May 21-24, 2018, Tara Mountain, Serbia (2018):151-152,
https://hdl.handle.net/21.15107/rcub_cer_2647 .

TY  - CONF
AU  - Riđošić, Marija
AU  - Tomić, Milorad
AU  - Pavlović, Miroslav
AU  - Bojanić, Vaso
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6615
AB  - In this paper chemical and electrochemical treatment of aluminium and measurement of roughness were carried out. Before chemical or electrochemical treatment of aluminium samples chemical preparation is done to remove oxide coating on surface. Three solutions are used for chemical and two solutions for electrochemical treatment. All used solutions give good results, because after chemical and electrochemical treatment the roughness of surface is decrease for all samples. It is shown by measurements of surface roughness. The surface of aluminium has specific color and visual appearance after treatments. Because of various colours, aluminium can be used in different enterer or exterior, depending of the needs of the market. Some of used solutions are commercial, which is used in d.o.o “Alpro” Vlasenica. Increase of time of treatments leads to decrease of the roughness of surface. The best results were obtained in solutions (H1) and (H2) of all used solutions for chemical and electrochemical treatments of aluminium surface. The samples of aluminium treated in solutions (H1) and (H2) have lower roughness of surface and its value is 0,235-0,268µm. The most intense color is obtained during treatment of samples in solutions (H1) and (H2), i.e. by chemical treatment of aluminium samples.
AB  - U ovom radu je vršena hemijska i elektrohemijska obrada aluminijuma, nakon čega je merena hrapavost uzoraka. Pre hemijske ili elektrohemijske obrade uzoraka aluminijuma potrebno je izvršiti hemijsku pripremu i ukloniti zaštitnu oksidnu opnu. Za hemijsku obradu korišćena su tri, a za elektrohemijsku obradu dva rastvora. Svih pet korišćenih rastvora daju dobre rezultate, jer nakon hemijske i elektrohemijske obrade dolazi do smanjenja površinske hrapavosti. To pokazuju izvršena merenja površinske hrapavosti svih uzoraka. Takođe, nakon tretmana u svakom od rastvora dobija se i specifična boja i različit vizuelni izgled površine aluminijuma. U zavisnosti od boje, aluminijum se može uklapati u različite enterijere i eksterijere u zavisnosti od zahteva tržišta. Neki od korišćenih rastvora su komercijalni rastvori koji se već koriste u d.o.o „Alpro“ Vlasenica. Sa povećanjem vremena obrade dolazi do smanjenja hrapavosti uzoraka aluminijuma. Od pet korišćenih rastvora za hemijsko i elektrohemijsko bojenje aluminijuma, najbolje rezultate pokazali su rastvori (H1) i (H2). Uzorci aluminijuma obrađeni u ovim rastvorima imaju najmanju hrapavosti i ona se kreće od 0,235-0,268µm. Najintezivnija boja je dobijena prilikom obrade uzoraka u rastvoru (H1) i (H2)tj. pri hemijskoj obradi uzoraka aluminijuma.
PB  - Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM
C3  - Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia
T1  - The roughness of surface of aluminum after chemical and  electrochemical treatment
T1  - Hrapavost površine aluminijuma nakon hemijske i elektrohemijske obrade
SP  - 271
EP  - 279
UR  - https://hdl.handle.net/21.15107/rcub_cer_6615
ER  - 

@conference{
author = "Riđošić, Marija and Tomić, Milorad and Pavlović, Miroslav and Bojanić, Vaso",
year = "2017",
abstract = "In this paper chemical and electrochemical treatment of aluminium and measurement of roughness were carried out. Before chemical or electrochemical treatment of aluminium samples chemical preparation is done to remove oxide coating on surface. Three solutions are used for chemical and two solutions for electrochemical treatment. All used solutions give good results, because after chemical and electrochemical treatment the roughness of surface is decrease for all samples. It is shown by measurements of surface roughness. The surface of aluminium has specific color and visual appearance after treatments. Because of various colours, aluminium can be used in different enterer or exterior, depending of the needs of the market. Some of used solutions are commercial, which is used in d.o.o “Alpro” Vlasenica. Increase of time of treatments leads to decrease of the roughness of surface. The best results were obtained in solutions (H1) and (H2) of all used solutions for chemical and electrochemical treatments of aluminium surface. The samples of aluminium treated in solutions (H1) and (H2) have lower roughness of surface and its value is 0,235-0,268µm. The most intense color is obtained during treatment of samples in solutions (H1) and (H2), i.e. by chemical treatment of aluminium samples., U ovom radu je vršena hemijska i elektrohemijska obrada aluminijuma, nakon čega je merena hrapavost uzoraka. Pre hemijske ili elektrohemijske obrade uzoraka aluminijuma potrebno je izvršiti hemijsku pripremu i ukloniti zaštitnu oksidnu opnu. Za hemijsku obradu korišćena su tri, a za elektrohemijsku obradu dva rastvora. Svih pet korišćenih rastvora daju dobre rezultate, jer nakon hemijske i elektrohemijske obrade dolazi do smanjenja površinske hrapavosti. To pokazuju izvršena merenja površinske hrapavosti svih uzoraka. Takođe, nakon tretmana u svakom od rastvora dobija se i specifična boja i različit vizuelni izgled površine aluminijuma. U zavisnosti od boje, aluminijum se može uklapati u različite enterijere i eksterijere u zavisnosti od zahteva tržišta. Neki od korišćenih rastvora su komercijalni rastvori koji se već koriste u d.o.o „Alpro“ Vlasenica. Sa povećanjem vremena obrade dolazi do smanjenja hrapavosti uzoraka aluminijuma. Od pet korišćenih rastvora za hemijsko i elektrohemijsko bojenje aluminijuma, najbolje rezultate pokazali su rastvori (H1) i (H2). Uzorci aluminijuma obrađeni u ovim rastvorima imaju najmanju hrapavosti i ona se kreće od 0,235-0,268µm. Najintezivnija boja je dobijena prilikom obrade uzoraka u rastvoru (H1) i (H2)tj. pri hemijskoj obradi uzoraka aluminijuma.",
publisher = "Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM",
journal = "Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia",
title = "The roughness of surface of aluminum after chemical and  electrochemical treatment, Hrapavost površine aluminijuma nakon hemijske i elektrohemijske obrade",
pages = "271-279",
url = "https://hdl.handle.net/21.15107/rcub_cer_6615"
}

Riđošić, M., Tomić, M., Pavlović, M.,& Bojanić, V.. (2017). The roughness of surface of aluminum after chemical and  electrochemical treatment. in Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia
Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM., 271-279.
https://hdl.handle.net/21.15107/rcub_cer_6615

Riđošić M, Tomić M, Pavlović M, Bojanić V. The roughness of surface of aluminum after chemical and  electrochemical treatment. in Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia. 2017;:271-279.
https://hdl.handle.net/21.15107/rcub_cer_6615 .

Riđošić, Marija, Tomić, Milorad, Pavlović, Miroslav, Bojanić, Vaso, "The roughness of surface of aluminum after chemical and  electrochemical treatment" in Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia (2017):271-279,
https://hdl.handle.net/21.15107/rcub_cer_6615 .

TY  - CONF
AU  - Riđošić, Marija
AU  - Tomić, Milorad
AU  - Fuchs-Godec, Regina
AU  - Pavlović, Miroslav
AU  - Pavlović, Miomir
AU  - Mićić, Vladan
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6564
AB  - Zbog sve veće brige stručne i naučne javnosti o zaštiti životne sredine došlo je do upotrebe ekološki prihvatljivih inhibitora za zaštitu metala od korozije. U ovom radu izvršeno je ispitivanje zaštite bakra obradom korozione sredine primenom različitih koncentracija ekstrakta žalfije 0.5g/dm3,1 g/dm3 i 1.5g/dm3, kao zelenog inhibitora, u rastvoru 3% NaCl. Merenja su izvedena gravimetrijskom metodom i elektrohemijskim metodama (Tafelovom metodom ekstrapolacije i spektroskopijom elektrohemijske impedanse). Najveće dostignute vrednosti zaštitnog faktora ekstrakta žalfije su 60,04% u rastvoru 3%NaCl + 1 g/dm3 i 53% u rastvoru 3%NaCl + 1,5 g/dm3 u vremenskom intervalu od 6 sati. Međutim, isti rastvori u vremenskom intervalu od 4 i 24 h deluju katalitički na proces korozije bakra, te se ekstrakt žalfije ne može preporučiti kao inhibitor korozije bakra u 3%NaCl. Rezultati dobijeni spektroskopijom elektrohemijske impedanse i rezultati dobijeni sa snimljenih Tafelovih polarizacionih dijagrama potvrđuju rezultate dobijene gravimetrijskom metodom, te se mogu preporučiti kao vrlo pouzdane metode za brza koroziona ispitivanja.
AB  - Due to the increasing concern of experts and scientists on environmental protection use of environmentally friendly corrosion inhibitors for metal protection gains more interest. In this paper, research on copper protection by processing corrosive environment while applying different concentrations of sage extract of 0.5g/dm3,1 g/dm3 i 1.5g/dm3 as green inhibitor in 3% NaCl solution was performed. Measurements were carried out by gravimetric method and electrochemical methods (Tafel extrapolation method and electrochemical impedance spectroscopy). The greatest protective values of sage extract of 60,04% were reached in 3%NaCl + 1 g/dm3 solution and 53% 3%NaCl + 1,5 g/dm3 solution in 6 hours interval. However, the same solutions act catalytically on copper corrosion process during time interval from 4 to 24 hours, that is why sage extract can not be recommended as inhibitor of copper corrosion in 3%NaCl. The results obtained by electrochemical impedance spectroscopy and recorded Tafel polarization diagrams, confirm results attained by gravimetric method, thus can be recommended as very reliable methods for quick corrosion tests.
PB  - Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection (UISKOZAM) / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala (UISKOZAM)
C3  - Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia
T1  - Ekstrakt žalfije kao inhibitor korozije bakra u 3% NaCl
T1  - Sage extract as inhibitor of copper corrosion in 3% NaCl
SP  - 132
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_cer_6564
ER  - 

@conference{
author = "Riđošić, Marija and Tomić, Milorad and Fuchs-Godec, Regina and Pavlović, Miroslav and Pavlović, Miomir and Mićić, Vladan",
year = "2016",
abstract = "Zbog sve veće brige stručne i naučne javnosti o zaštiti životne sredine došlo je do upotrebe ekološki prihvatljivih inhibitora za zaštitu metala od korozije. U ovom radu izvršeno je ispitivanje zaštite bakra obradom korozione sredine primenom različitih koncentracija ekstrakta žalfije 0.5g/dm3,1 g/dm3 i 1.5g/dm3, kao zelenog inhibitora, u rastvoru 3% NaCl. Merenja su izvedena gravimetrijskom metodom i elektrohemijskim metodama (Tafelovom metodom ekstrapolacije i spektroskopijom elektrohemijske impedanse). Najveće dostignute vrednosti zaštitnog faktora ekstrakta žalfije su 60,04% u rastvoru 3%NaCl + 1 g/dm3 i 53% u rastvoru 3%NaCl + 1,5 g/dm3 u vremenskom intervalu od 6 sati. Međutim, isti rastvori u vremenskom intervalu od 4 i 24 h deluju katalitički na proces korozije bakra, te se ekstrakt žalfije ne može preporučiti kao inhibitor korozije bakra u 3%NaCl. Rezultati dobijeni spektroskopijom elektrohemijske impedanse i rezultati dobijeni sa snimljenih Tafelovih polarizacionih dijagrama potvrđuju rezultate dobijene gravimetrijskom metodom, te se mogu preporučiti kao vrlo pouzdane metode za brza koroziona ispitivanja., Due to the increasing concern of experts and scientists on environmental protection use of environmentally friendly corrosion inhibitors for metal protection gains more interest. In this paper, research on copper protection by processing corrosive environment while applying different concentrations of sage extract of 0.5g/dm3,1 g/dm3 i 1.5g/dm3 as green inhibitor in 3% NaCl solution was performed. Measurements were carried out by gravimetric method and electrochemical methods (Tafel extrapolation method and electrochemical impedance spectroscopy). The greatest protective values of sage extract of 60,04% were reached in 3%NaCl + 1 g/dm3 solution and 53% 3%NaCl + 1,5 g/dm3 solution in 6 hours interval. However, the same solutions act catalytically on copper corrosion process during time interval from 4 to 24 hours, that is why sage extract can not be recommended as inhibitor of copper corrosion in 3%NaCl. The results obtained by electrochemical impedance spectroscopy and recorded Tafel polarization diagrams, confirm results attained by gravimetric method, thus can be recommended as very reliable methods for quick corrosion tests.",
publisher = "Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection (UISKOZAM) / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala (UISKOZAM)",
journal = "Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia",
title = "Ekstrakt žalfije kao inhibitor korozije bakra u 3% NaCl, Sage extract as inhibitor of copper corrosion in 3% NaCl",
pages = "132-140",
url = "https://hdl.handle.net/21.15107/rcub_cer_6564"
}

Riđošić, M., Tomić, M., Fuchs-Godec, R., Pavlović, M., Pavlović, M.,& Mićić, V.. (2016). Ekstrakt žalfije kao inhibitor korozije bakra u 3% NaCl. in Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia
Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection (UISKOZAM) / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala (UISKOZAM)., 132-140.
https://hdl.handle.net/21.15107/rcub_cer_6564

Riđošić M, Tomić M, Fuchs-Godec R, Pavlović M, Pavlović M, Mićić V. Ekstrakt žalfije kao inhibitor korozije bakra u 3% NaCl. in Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia. 2016;:132-140.
https://hdl.handle.net/21.15107/rcub_cer_6564 .

Riđošić, Marija, Tomić, Milorad, Fuchs-Godec, Regina, Pavlović, Miroslav, Pavlović, Miomir, Mićić, Vladan, "Ekstrakt žalfije kao inhibitor korozije bakra u 3% NaCl" in Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia (2016):132-140,
https://hdl.handle.net/21.15107/rcub_cer_6564 .

TY  - JOUR
AU  - Tomić, Milorad
AU  - Savljević, D.
AU  - Pavlović, Miomir
AU  - Riđošić, Marija
AU  - Pavlović, Miroslav
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6662
AB  - U radu je ispitivan uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha. 
Vršeno elektrohemijsko taloženje bakarnog praha iz sulfatnih elektrolita. Korišćeni su elektroliti sa tri koncentracije Cu2+ ( 7 g/dm3, 18 g/dm3 i 33 g/dm3 i svaka u kombinaciji sa tri koncentracije H2SO4 (100 g/dm3, 150 g/dm3 i 200 g/dm3), tako da je bakarni prah taložen iz devet elektrolita. Kao katoda je korišćena bakarna žica površine 1cm2, a bakarna anoda je bila priljubljena uz zid elektrohemijske laboratorijske ćelije zapremine 500cm³. Eksperimenti su rađeni na sobnoj temperaturi, a cirkulacija elektrolita vršena je pomoću magnetne mešalice. Bakarni prah taložen je galvanostatski pri gustinama struje od: j=1500A/m2, j=2000A/m2 i j=2500A/m2. Proizvedeni bakarni prah sa katode otresan je svakih tri minuta. Sve osobine praha zavise od oblika i dimenzije čestice (morfologije), od kojih je prah sačinjen i međusobno su povezane. Ispitivanje morfologije i veličine čestice vršeno je pomoću skenirajuće elektronske mikroskopije (SEM). Analizom dobijenih mikrofotografija utvrđeno je da se sa povećanjem gustine stuje morfologija čestica bakarnog praha menja od kompaktnih, masivnih dendrita i masivnih čestica, do razgranatih, 3D dendrita koji imaju strukturu kao zrna kukuruza. Sa povećanjem gustine struje dobijaju se sitnija zrna bakarnog praha koja su pravilno raspoređena.
AB  - The paper investigates the effect of current density on the morphology of copper powder obtained 
electrochemically. Copper powder from sulphate electrolytes was deposited electrochemically. The 
electrolytes used had three different concentrations of Cu2+ ( 7 g/dm3, 18 g/dm3 and 33 g/dm3) each combined with three concentations of H2SO4 (100 g/dm3, 150 g/dm3 and 200 g/dm3), so that copper powder was deposited from nine electrolytes. The cathode was a copper wire with the surface of 1cm2, whereas the copper anode was attached to the wall of the electrochemical laboratory cell with the volume of 500cm³. The experiments were performed at room temperature and the circulation of electrolytes was conducted using a magnetic stirrer. Copper powder was deposited galvanostatically at the following current densities: j=1500A/m2, j=2000A/m2 and j=2500A/m2. The copper powder produced was shaken off from the cathode every three minutes. All the properties of the powder depend on the shape and size of the particles (morphology) which constitute the powder and they are in correlation. Investigation of the morphology of particles was performed using scanning electron microscopy (SEM). The analysis of the obtained microphotographs shows that the increase of current density changes the morphology of copper powder particles from compact, massive dendrites and massive particles to branching 3D dendrites with the straucture of corn grains. The increase in current density results in smaller 
particles of copper powder which are evenly distributed.
PB  - Podgorica, Crna Gora : Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine
T2  - Zaštita materijala i životne sredine
T1  - Uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha
T1  - Influence current density on the morphology electrochemical obtained copper powder
VL  - III
IS  - 2
SP  - 50
EP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_cer_6662
ER  - 

@article{
author = "Tomić, Milorad and Savljević, D. and Pavlović, Miomir and Riđošić, Marija and Pavlović, Miroslav",
year = "2014",
abstract = "U radu je ispitivan uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha. 
Vršeno elektrohemijsko taloženje bakarnog praha iz sulfatnih elektrolita. Korišćeni su elektroliti sa tri koncentracije Cu2+ ( 7 g/dm3, 18 g/dm3 i 33 g/dm3 i svaka u kombinaciji sa tri koncentracije H2SO4 (100 g/dm3, 150 g/dm3 i 200 g/dm3), tako da je bakarni prah taložen iz devet elektrolita. Kao katoda je korišćena bakarna žica površine 1cm2, a bakarna anoda je bila priljubljena uz zid elektrohemijske laboratorijske ćelije zapremine 500cm³. Eksperimenti su rađeni na sobnoj temperaturi, a cirkulacija elektrolita vršena je pomoću magnetne mešalice. Bakarni prah taložen je galvanostatski pri gustinama struje od: j=1500A/m2, j=2000A/m2 i j=2500A/m2. Proizvedeni bakarni prah sa katode otresan je svakih tri minuta. Sve osobine praha zavise od oblika i dimenzije čestice (morfologije), od kojih je prah sačinjen i međusobno su povezane. Ispitivanje morfologije i veličine čestice vršeno je pomoću skenirajuće elektronske mikroskopije (SEM). Analizom dobijenih mikrofotografija utvrđeno je da se sa povećanjem gustine stuje morfologija čestica bakarnog praha menja od kompaktnih, masivnih dendrita i masivnih čestica, do razgranatih, 3D dendrita koji imaju strukturu kao zrna kukuruza. Sa povećanjem gustine struje dobijaju se sitnija zrna bakarnog praha koja su pravilno raspoređena., The paper investigates the effect of current density on the morphology of copper powder obtained 
electrochemically. Copper powder from sulphate electrolytes was deposited electrochemically. The 
electrolytes used had three different concentrations of Cu2+ ( 7 g/dm3, 18 g/dm3 and 33 g/dm3) each combined with three concentations of H2SO4 (100 g/dm3, 150 g/dm3 and 200 g/dm3), so that copper powder was deposited from nine electrolytes. The cathode was a copper wire with the surface of 1cm2, whereas the copper anode was attached to the wall of the electrochemical laboratory cell with the volume of 500cm³. The experiments were performed at room temperature and the circulation of electrolytes was conducted using a magnetic stirrer. Copper powder was deposited galvanostatically at the following current densities: j=1500A/m2, j=2000A/m2 and j=2500A/m2. The copper powder produced was shaken off from the cathode every three minutes. All the properties of the powder depend on the shape and size of the particles (morphology) which constitute the powder and they are in correlation. Investigation of the morphology of particles was performed using scanning electron microscopy (SEM). The analysis of the obtained microphotographs shows that the increase of current density changes the morphology of copper powder particles from compact, massive dendrites and massive particles to branching 3D dendrites with the straucture of corn grains. The increase in current density results in smaller 
particles of copper powder which are evenly distributed.",
publisher = "Podgorica, Crna Gora : Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine",
journal = "Zaštita materijala i životne sredine",
title = "Uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha, Influence current density on the morphology electrochemical obtained copper powder",
volume = "III",
number = "2",
pages = "50-61",
url = "https://hdl.handle.net/21.15107/rcub_cer_6662"
}

Tomić, M., Savljević, D., Pavlović, M., Riđošić, M.,& Pavlović, M.. (2014). Uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha. in Zaštita materijala i životne sredine
Podgorica, Crna Gora : Crnogorsko društvo za koroziju, zaštitu materijala i zaštitu životne sredine., III(2), 50-61.
https://hdl.handle.net/21.15107/rcub_cer_6662

Tomić M, Savljević D, Pavlović M, Riđošić M, Pavlović M. Uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha. in Zaštita materijala i životne sredine. 2014;III(2):50-61.
https://hdl.handle.net/21.15107/rcub_cer_6662 .

Tomić, Milorad, Savljević, D., Pavlović, Miomir, Riđošić, Marija, Pavlović, Miroslav, "Uticaj gustine struje na morfologiju elektrohemijski dobijenog bakarnog praha" in Zaštita materijala i životne sredine, III, no. 2 (2014):50-61,
https://hdl.handle.net/21.15107/rcub_cer_6662 .