Method for making sintered metal-coated graphite for high-curren

Details Method for making sintered metal-coated graphite for high-curren Method for making sintered metal-coated graphite for high-curren

1978-11-30

1980-12-23

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

427217, 427314, B22F 300

Patent

active

042408300

ABSTRACT:
Graphite particles as small as 38 microns are cleaned, dried and chemically plated with copper or silver. One or multiple chemical platings may be carried out to provide a uniform and thick metal coating. The plated powders are dried and then molded into a desired shape under heavy pressure in a hydraulic press or the like after which the molded shape is sintered under a hydrogen atmosphere for the subsequent fabrication into monolithic or multi-elemental brushes for high-current collectors.

REFERENCES:
patent: 2729559 (1956-01-01), Matsukawa
patent: 3535093 (1970-10-01), Sara
patent: 3904405 (1975-09-01), Russell et al.
Lupanov et al., Chemical Abstracts V69(1968), p. 10554 Abstract #112779(s).
Pavlenko et al., Porosh. Met. No. 2 (158), 1976.

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