TY  - JOUR
AU  - Rafailović, Lidija D.
AU  - Karnthaler, Hans-Peter
AU  - Trišović, Tomislav
AU  - Minić, Dragica M.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3424
AB  - The nickel and cobalt disperse alloy deposits of five different compositions were obtained by electrodeposition on Cu substrates in the galvanostatic regime from an ammonium sulfate-chloride solution. The effect of cathodic current density and Ni2+/Co2+ ions concentration ratio in the electrolyte on the composition, microstructure, morphology and mechanical properties of Ni-Co alloys were investigated. Conditions for formation of nanostrustured disperse deposits and surface roughness was determined by 3D SEM reconstruction of the specimen surface. It was established that formation of the disperse deposits with highly developed structures is favored from bath with equal Ni2+/Co2+ ions concentration ratio in the electrolyte. Cathodic polarization diagrams determined for all investigated alloys have shown shift of the cathodic potential for alloy deposition to the more negative values with increasing Ni2+/Co2+ ions concentration ratio in the electrolyte. An increase of in the cobalt content in the alloy was observed with decreasing the current density and increasing of the Co2+ ions concentration ratio in the bath. X-ray analyses of nanocrystalline Ni-Co deposits show formation of a single phase face-centered cubic (FCC), a single phase hexagonal-close packed (HCP) and mixture of FCC solid solutions and HCP phase depending on the current density applied and electrolyte composition. The increase of HCP phase content in the nanocrystalline deposits appears as a result of both, the increase in Co2+ ions concentration in the bath and decrease of deposition current density. The mechanical properties of nanocrystalline deposits have shown increase of the hardness with increasing Ni content in the alloy. The cross-section of the samples electrodeposited on Cu substrates from electrolytes with equal ion metal concentration at lower current density values revealed the beginning of a dendrite structure formation. © 2009 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - Microstructure and mechanical properties of disperse Ni-Co alloys electrodeposited on Cu substrates
SP  - 409
EP  - 416
VL  - 120
IS  - 2-3
DO  - 10.1016/j.matchemphys.2009.11.029
UR  - https://hdl.handle.net/21.15107/rcub_dais_3424
ER  - 

@article{
author = "Rafailović, Lidija D. and Karnthaler, Hans-Peter and Trišović, Tomislav and Minić, Dragica M.",
year = "2010",
abstract = "The nickel and cobalt disperse alloy deposits of five different compositions were obtained by electrodeposition on Cu substrates in the galvanostatic regime from an ammonium sulfate-chloride solution. The effect of cathodic current density and Ni2+/Co2+ ions concentration ratio in the electrolyte on the composition, microstructure, morphology and mechanical properties of Ni-Co alloys were investigated. Conditions for formation of nanostrustured disperse deposits and surface roughness was determined by 3D SEM reconstruction of the specimen surface. It was established that formation of the disperse deposits with highly developed structures is favored from bath with equal Ni2+/Co2+ ions concentration ratio in the electrolyte. Cathodic polarization diagrams determined for all investigated alloys have shown shift of the cathodic potential for alloy deposition to the more negative values with increasing Ni2+/Co2+ ions concentration ratio in the electrolyte. An increase of in the cobalt content in the alloy was observed with decreasing the current density and increasing of the Co2+ ions concentration ratio in the bath. X-ray analyses of nanocrystalline Ni-Co deposits show formation of a single phase face-centered cubic (FCC), a single phase hexagonal-close packed (HCP) and mixture of FCC solid solutions and HCP phase depending on the current density applied and electrolyte composition. The increase of HCP phase content in the nanocrystalline deposits appears as a result of both, the increase in Co2+ ions concentration in the bath and decrease of deposition current density. The mechanical properties of nanocrystalline deposits have shown increase of the hardness with increasing Ni content in the alloy. The cross-section of the samples electrodeposited on Cu substrates from electrolytes with equal ion metal concentration at lower current density values revealed the beginning of a dendrite structure formation. © 2009 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "Microstructure and mechanical properties of disperse Ni-Co alloys electrodeposited on Cu substrates",
pages = "409-416",
volume = "120",
number = "2-3",
doi = "10.1016/j.matchemphys.2009.11.029",
url = "https://hdl.handle.net/21.15107/rcub_dais_3424"
}

Rafailović, L. D., Karnthaler, H., Trišović, T.,& Minić, D. M.. (2010). Microstructure and mechanical properties of disperse Ni-Co alloys electrodeposited on Cu substrates. in Materials Chemistry and Physics
Elsevier., 120(2-3), 409-416.
https://doi.org/10.1016/j.matchemphys.2009.11.029
https://hdl.handle.net/21.15107/rcub_dais_3424

Rafailović LD, Karnthaler H, Trišović T, Minić DM. Microstructure and mechanical properties of disperse Ni-Co alloys electrodeposited on Cu substrates. in Materials Chemistry and Physics. 2010;120(2-3):409-416.
doi:10.1016/j.matchemphys.2009.11.029
https://hdl.handle.net/21.15107/rcub_dais_3424 .

Rafailović, Lidija D., Karnthaler, Hans-Peter, Trišović, Tomislav, Minić, Dragica M., "Microstructure and mechanical properties of disperse Ni-Co alloys electrodeposited on Cu substrates" in Materials Chemistry and Physics, 120, no. 2-3 (2010):409-416,
https://doi.org/10.1016/j.matchemphys.2009.11.029 .,
https://hdl.handle.net/21.15107/rcub_dais_3424 .

TY  - JOUR
AU  - Rafailović, Lidija D.
AU  - Minić, Dragica M.
AU  - Karnthaler, Hans-Peter
AU  - Wosik, J.
AU  - Trišović, Tomislav
AU  - Nauer, G. E.
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/3423
AB  - Ni-Co alloy deposits and their parent metals were formed on Cu substrates by electrolysis under different current densities applied in the galvanostatic regime. A quantitative scanning electron microscopy technique was employed to study the morphology and surface roughness of the obtained deposits. The structure of the deposits is governed by the nature of depositing ions and quantity of evolved hydrogen. The cauliflower morphology and the highest mean surface roughness values are the results of electrodeposition from the Ni containing bath. The structure of the Co deposits formed under the same conditions and determined by the formation of the hexagonal close-packed phase results in a more uniform grain size distribution and formation of smoother platelet deposits. The mean surface values of the parent metals are independent of the current density. The dendritic growth is a special case of a structure formed only in the Ni-Co alloy deposition at selected, high current densities of 220 and 400 mA cm-2. The dendrites obtained at a higher current density of 400 mA cm-2 have shown more developed structures with smaller dendrites that have more pronounced secondary branch and high order branches. © 2010 The Electrochemical Society.
PB  - Pennington, N. J.: The Electrochemical Society
T2  - Journal of the Electrochemical Society
T1  - Study of the dendritic growth of Ni-Co alloys electrodeposited on Cu substrates
SP  - D295
EP  - D301
VL  - 157
IS  - 5
DO  - 10.1149/1.3336957
UR  - https://hdl.handle.net/21.15107/rcub_dais_3423
ER  - 

@article{
author = "Rafailović, Lidija D. and Minić, Dragica M. and Karnthaler, Hans-Peter and Wosik, J. and Trišović, Tomislav and Nauer, G. E.",
year = "2010",
abstract = "Ni-Co alloy deposits and their parent metals were formed on Cu substrates by electrolysis under different current densities applied in the galvanostatic regime. A quantitative scanning electron microscopy technique was employed to study the morphology and surface roughness of the obtained deposits. The structure of the deposits is governed by the nature of depositing ions and quantity of evolved hydrogen. The cauliflower morphology and the highest mean surface roughness values are the results of electrodeposition from the Ni containing bath. The structure of the Co deposits formed under the same conditions and determined by the formation of the hexagonal close-packed phase results in a more uniform grain size distribution and formation of smoother platelet deposits. The mean surface values of the parent metals are independent of the current density. The dendritic growth is a special case of a structure formed only in the Ni-Co alloy deposition at selected, high current densities of 220 and 400 mA cm-2. The dendrites obtained at a higher current density of 400 mA cm-2 have shown more developed structures with smaller dendrites that have more pronounced secondary branch and high order branches. © 2010 The Electrochemical Society.",
publisher = "Pennington, N. J.: The Electrochemical Society",
journal = "Journal of the Electrochemical Society",
title = "Study of the dendritic growth of Ni-Co alloys electrodeposited on Cu substrates",
pages = "D295-D301",
volume = "157",
number = "5",
doi = "10.1149/1.3336957",
url = "https://hdl.handle.net/21.15107/rcub_dais_3423"
}

Rafailović, L. D., Minić, D. M., Karnthaler, H., Wosik, J., Trišović, T.,& Nauer, G. E.. (2010). Study of the dendritic growth of Ni-Co alloys electrodeposited on Cu substrates. in Journal of the Electrochemical Society
Pennington, N. J.: The Electrochemical Society., 157(5), D295-D301.
https://doi.org/10.1149/1.3336957
https://hdl.handle.net/21.15107/rcub_dais_3423

Rafailović LD, Minić DM, Karnthaler H, Wosik J, Trišović T, Nauer GE. Study of the dendritic growth of Ni-Co alloys electrodeposited on Cu substrates. in Journal of the Electrochemical Society. 2010;157(5):D295-D301.
doi:10.1149/1.3336957
https://hdl.handle.net/21.15107/rcub_dais_3423 .

Rafailović, Lidija D., Minić, Dragica M., Karnthaler, Hans-Peter, Wosik, J., Trišović, Tomislav, Nauer, G. E., "Study of the dendritic growth of Ni-Co alloys electrodeposited on Cu substrates" in Journal of the Electrochemical Society, 157, no. 5 (2010):D295-D301,
https://doi.org/10.1149/1.3336957 .,
https://hdl.handle.net/21.15107/rcub_dais_3423 .