Process for preparing spherical copper fine powder

Details Process for preparing spherical copper fine powder Process for preparing spherical copper fine powder

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.

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