Morphology and phase composition of Ni-Co alloy powders electrodeposited from ammonium sulfate-boric acid electrolyte
Apstrakt
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 Ni2+/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+/Co2+ ions concentration, typical 2D fern-like dendritic particles were obtained. With decrease of Ni2+/Co2+ ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates of a size of about 100 mu m, 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. beta-Ni phase was found to decrease, while the amount of h.c.p. alpha-Co phase was found to increase being accompanied by the appearance of the f.c.c. Co phase at Ni2+/...Co2+ = 0.33.
Ključne reči:
2D fern-like dendrites / 3D dendrites / agglomerates / f.c.c. beta-Ni phase / f.c.c. Co phase / h.c.p. alpha-Co phase / Ni-Co powdersIzvor:
Materials Science Forum, 2006, 518, 307-312Napomena:
- Recent Developments in Advanced Materials and Processes, 7th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS), Sep 12-16, 2005, Herceg Novi, Montenegro
DOI: 10.4028/www.scientific.net/MSF.518.307
ISSN: 0255-5476
WoS: 000239351800051
Scopus: 2-s2.0-37849023715
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Jović, Vladimir D. AU - Maksimović, Vesna AU - Pavlović, Miomir G. AU - Jovic, B. M. PY - 2006 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6608 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 Ni2+/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+/Co2+ ions concentration, typical 2D fern-like dendritic particles were obtained. With decrease of Ni2+/Co2+ ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates of a size of about 100 mu m, 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. beta-Ni phase was found to decrease, while the amount of h.c.p. alpha-Co phase was found to increase being accompanied by the appearance of the f.c.c. Co phase at Ni2+/Co2+ = 0.33. T2 - 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 -
@article{ author = "Jović, Vladimir D. and Maksimović, Vesna and Pavlović, Miomir G. and Jovic, 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 Ni2+/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+/Co2+ ions concentration, typical 2D fern-like dendritic particles were obtained. With decrease of Ni2+/Co2+ ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates of a size of about 100 mu m, 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. beta-Ni phase was found to decrease, while the amount of h.c.p. alpha-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. G.,& Jovic, 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 MG, Jovic BM. 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, Vesna, Pavlović, Miomir G., Jovic, 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 . .