Diamond coated body

Details Diamond coated body Diamond coated body

1994-06-24

1996-08-06

Turner, A. A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428131, 428212, 428216, 428336, 428408, 428698, 51295, 51307, 51309, 407119, B24D 1100

Patent

active

055432107

ABSTRACT:
There is now provided a body of cemented carbide, Si.sub.3 N.sub.4 or another ceramic material, coated by at least one CVD or PVD diamond or cBN layer with a chromium nitride, chromium carbide or chromium carbonitride layer. The chromium-containing layer is outside the diamond layer which in the case of more than one diamond layer is the outermost diamond layer of the coating. Improved machining properties are obtained.

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Chattopadhyay et al, "On Surface Modification of Superabrasive Grits by CVD of Chromium", Annals of the CIRP, vol. 41/1/1992, pp. 381-385.

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