Intercalated graphite containing electrical motor brushes and ot

Details Intercalated graphite containing electrical motor brushes and ot Intercalated graphite containing electrical motor brushes and ot

1987-02-17

1989-01-24

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75230, 252502, 252503, 252506, 252509, 419 11, 419 48, 419 48, 419 68, 501 99, 501103, C22C 2900

Patent

active

047999578

ABSTRACT:
An electric motor brush or other electrical contact fabricated with intercalated graphite exhibits improved electrical conductivity, strength and performance when compared with electrical brushes made with non-intercalated graphite or with carbon. Such contacts may be formed by filling a mold of the appropriate shape with intercalated graphite powder and applying sufficient pressure and heat to produce a coherent mass. The ability of intercalated graphite powder to be compacted in such a fashion leads to economic methods of manufacturing electrical contacts. The properties of these contacts may be further improved by the incorporation of metal powder, organic polymers or ceramic powders into the intercalated graphite prior to pressing.

REFERENCES:
patent: 4565649 (1986-01-01), Vogel
patent: 4604276 (1986-08-01), Oblas et al.
patent: 4642201 (1987-02-01), Vogel
patent: 4645620 (1987-02-01), Palchan et al.

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