Powder-metallurgically produced composite material and method for its production
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United States of America Patent
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Nov 6, 2001
Grant Date -
N/A
app pub date -
Apr 7, 2000
filing date -
Apr 9, 1999
priority date (Note) -
Expired
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Abstract
The present invention relates to a powder-metallurgically produced composite material comprising a matrix and a granular additive comprising at least one fine-grained refractory metal with an average grain size of at most 2 .mu.m uniformly distributed in the matrix, so that the composite exhibits a residual porosity of <0.5%. Furthermore, the invention relates to a method for the production of the composite and its use as an electrical contact material.
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