Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1988-03-18
1989-03-07
Stallard, Wayland
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
B22F 912
Patent
active
048102857
ABSTRACT:
In a process for preparing a spherical copper fine powder having an average grain size ranging from 0.1 .mu.m to a few .mu.m, by use of chemical vapor deposition of cuprous chloride vapor with a reducing gas, the vapor deposition zone is maintained at a temperature ranging 900.degree. C. to less than 1,150.degree. C. and the generated particles are quenched subsequently. The generated powder is utilized as a conductive powder which is the main component of a conductive paste.
REFERENCES:
Funtai Kogaku-Kaishi, vol. 21, pp. 759-767, 1984.
Nitta Minoru
Otsuka Kenichi
Kawasaki Steel Corporation
Stallard Wayland
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