In this paper the morphology of Ni-Co powders electrodeposited from ammonium sulfate-boric acid containing electrolyte is investigated as a function of alloy powder composition. Composition of the electrolyte, i.e. the ratio of Nr2+/Co2+ concentration is found to influence both, the alloy phase composition and the morphology of Ni-Co alloy powders. At the highest ratio of Ni2+/Co ions concentration, typical 2D fern-like dendritic particles were obtained. With decrease of Ni2+/Co 2+ ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates of a size of about 100 μm, being either compact (typical for pure Co powder) or composed of a large number of small 3D dendrites on their surface were obtained. According to the X-ray analysis, with decreasing Ni2+/Co2+ concentration ratio the amount of f.c.c. β-Ni phase was found to decrease, while the amount of h.c.p. α-Co phase was found to increase being accompanied by the appearance of the f.c.c. Co phase at Ni2+/Co2+ = 0.3...3.
TY - CONF
AU - Jović, Vladimir D.
AU - Maksimović, V.
AU - Pavlović, Miomir
AU - Jović, B.M.
PY - 2006
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/276
AB - In this paper the morphology of Ni-Co powders electrodeposited from ammonium sulfate-boric acid containing electrolyte is investigated as a function of alloy powder composition. Composition of the electrolyte, i.e. the ratio of Nr2+/Co2+ concentration is found to influence both, the alloy phase composition and the morphology of Ni-Co alloy powders. At the highest ratio of Ni2+/Co ions concentration, typical 2D fern-like dendritic particles were obtained. With decrease of Ni2+/Co 2+ ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates of a size of about 100 μm, being either compact (typical for pure Co powder) or composed of a large number of small 3D dendrites on their surface were obtained. According to the X-ray analysis, with decreasing Ni2+/Co2+ concentration ratio the amount of f.c.c. β-Ni phase was found to decrease, while the amount of h.c.p. α-Co phase was found to increase being accompanied by the appearance of the f.c.c. Co phase at Ni2+/Co2+ = 0.33.
C3 - Materials Science Forum
T1 - Morphology and phase composition of Ni-Co alloy powders electrodeposited from ammonium sulfate-boric acid electrolyte
VL - 518
SP - 307
EP - 312
DO - 10.4028/www.scientific.net/MSF.518.307
ER -
@conference{
author = "Jović, Vladimir D. and Maksimović, V. and Pavlović, Miomir and Jović, B.M.",
year = "2006",
abstract = "In this paper the morphology of Ni-Co powders electrodeposited from ammonium sulfate-boric acid containing electrolyte is investigated as a function of alloy powder composition. Composition of the electrolyte, i.e. the ratio of Nr2+/Co2+ concentration is found to influence both, the alloy phase composition and the morphology of Ni-Co alloy powders. At the highest ratio of Ni2+/Co ions concentration, typical 2D fern-like dendritic particles were obtained. With decrease of Ni2+/Co 2+ ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates of a size of about 100 μm, being either compact (typical for pure Co powder) or composed of a large number of small 3D dendrites on their surface were obtained. According to the X-ray analysis, with decreasing Ni2+/Co2+ concentration ratio the amount of f.c.c. β-Ni phase was found to decrease, while the amount of h.c.p. α-Co phase was found to increase being accompanied by the appearance of the f.c.c. Co phase at Ni2+/Co2+ = 0.33.",
journal = "Materials Science Forum",
title = "Morphology and phase composition of Ni-Co alloy powders electrodeposited from ammonium sulfate-boric acid electrolyte",
volume = "518",
pages = "307-312",
doi = "10.4028/www.scientific.net/MSF.518.307"
}
Jović, V. D., Maksimović, V., Pavlović, M.,& Jović, B.M.. (2006). Morphology and phase composition of Ni-Co alloy powders electrodeposited from ammonium sulfate-boric acid electrolyte. in Materials Science Forum, 518, 307-312.
https://doi.org/10.4028/www.scientific.net/MSF.518.307
Jović VD, Maksimović V, Pavlović M, Jović B. Morphology and phase composition of Ni-Co alloy powders electrodeposited from ammonium sulfate-boric acid electrolyte. in Materials Science Forum. 2006;518:307-312.
doi:10.4028/www.scientific.net/MSF.518.307 .
Jović, Vladimir D., Maksimović, V., Pavlović, Miomir, Jović, B.M., "Morphology and phase composition of Ni-Co alloy powders electrodeposited from ammonium sulfate-boric acid electrolyte" in Materials Science Forum, 518 (2006):307-312,
https://doi.org/10.4028/www.scientific.net/MSF.518.307 . .
