Composite material and process of producing same
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United States of America Patent
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Mar 9, 1999
Issued Date -
N/A
app pub date -
Nov 22, 1996
filing date -
Oct 20, 1992
priority date (Note) -
Expired
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Abstract
An electroconductive composite material composed of a three-dimensional continuum of a porous metal with the pores filled with graphite and a resin, having a good heat resistance, wear resistance, strength and thermal conductivity, having a light weight, and particularly useful as electric armature brushes and other electric sliding elements. A process of producing the composite material comprises the steps of: filling pores of a three-dimensional continuum of a porous metal with a pasty mixture composed of graphite, a binder, and a solvent; treating the continuum for volatilization of the solvent; and then, forming and heating the continuum.
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