Process for producing a shaped article from contact material based on silver, contact material and shaped article
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United States of America Patent
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Dec 14, 1999
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N/A
app pub date -
Jul 27, 1998
filing date -
Jan 26, 1996
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Abstract
A contact material, a shaped article or contact piece and a process for producing a shaped article from a contact material based on silver, include forming a powder mixture from silver and a metal oxide, and metallurgically processing the powder to form the shaped article with the metal oxide being reduced to metal. Since metal oxide powders are obtainable with a very much smaller particle size than metal powders, it is possible to obtain a contact material with a mean particle size of the metal incorporated as an active component of less than 1 .mu.m. Such a contact material has particularly favorable switching properties as a result of the fine particle size.
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