Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating
Patent
1988-03-07
1989-05-16
Childs, Sadie
Coating processes
Coating by vapor, gas, or smoke
Carbon or carbide coating
427255, 4272552, 427343, C23C 1632
Patent
active
048308862
ABSTRACT:
In a process for preparing a coated cemented carbide cutting insert, a layer of titanium carbide containing eta phase is first vapor deposited directly adjacent a cobalt cemented tungsten carbide substrate and the eta phase is then removed by contacting the titanium carbide surface with a carburizing gas under suitable conditions to convert the eta phase to elemental cobalt and tungsten carbide.
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Bhat Deepak G.
Cho Toshiaki
Narasimhan Krishnan
Childs Sadie
GTE Valenite Corporation
Walter Robert E.
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