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Synthesis of Nanocrystalline Co-W Alloys

Published online by Cambridge University Press:  25 February 2011

D. Osmola ,
E. Renaud ,
U. Erb ,
L. Wong ,
G. Palumbo  and
K.T. Aust
D. Osmola
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, Canada, KT1 3N6
E. Renaud
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, Canada, KT1 3N6
U. Erb
Affiliation:
Department of Materials and Metallurgical Engineering, Queen's University, Kingston, Canada, KT1 3N6
L. Wong
Affiliation:
Defense Research Establishment Valcartier, Courcelette, Canada, GOA IRO
G. Palumbo
Affiliation:
Ontario Hydro Research Division, 800 Kipling Avenue, Toronto, Canada, M8Z 5S4
K.T. Aust
Affiliation:
Department of Metallurgy and Material Science, University of Toronto, Toronto, Canada, M5S 1A4
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Abstract

Electroplating is one of the most technologically advanced methods to synthesize nanophase materials both as coatings and in bulk form. This paper demonstrates the formulation of a processing “window” for nanocrystalline Co-W alloys using factorial design. The microstructural evolution from polycrystalline to nanocrystalline to amorphous Co-W microstructures is shown for electrodeposits produced from a bath containing cobalt sulphate, sodium tungstate, Rochelle salt and ammonium chloride. The effect of operating variables such as temperature and current density is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 286: Symposium J – Nanophase and Nanocomposite Materials , 1992 , 191
Copyright
Copyright © Materials Research Society 1993

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References

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