Process for forming a surface oxidized binding layer on hard substrates
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United States of America Patent
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Dec 17, 1991
Issued Date -
N/A
app pub date -
Jul 9, 1990
filing date -
Dec 16, 1981
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Abstract
Improved adherence of oxide wear layers on hard metal or cemented carbide substrates is obtained by providing a thin surface-oxidized bonding layer comprising a carbide or oxycarbide of at least one of tantalum, niobium or vanadium, optionally adding aluminum to the bonding layer, and finally providing an outer oxide layer layer.
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