Hard coatings with multiphase microstructures
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United States of America Patent
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Dec 22, 1987
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N/A
app pub date -
Dec 23, 1985
filing date -
Dec 23, 1985
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Expired
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Abstract
A coated cemented carbide product comprising a cemented carbide substrate and a dense chemical vapor deposited coating having a microstructure of at least two simultaneously co-deposited phases which form a composite layer. The microstructure of the composite layer has one phase dispersed either as discrete particulates or as oriented fibrous, rod-like or columnar particulates in the other phase.
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