COATED DIAMOND
First Claim
Patent Images
1. A coated diamond comprising:
- a diamond substrate;
a primary carbided layer of a carbide forming element,a secondary layer of a high melting point metal selected from W, Mo, Cr, Ni, Ta, Au, Pt, Pd or any combination or alloy thereof, the secondary layer being substantially free of carbide forming element from the primary layer; and
an overcoat of Ag, Ni, Cu, Au, Pd, Pt, Rh, Os, Ir, Re, any combination or alloy thereof, the metal of the secondary layer being different to the metal of the overcoat.
0 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a coated diamond comprising a diamond substrate; a primary carbided layer of a carbide forming element; a secondary layer of a high melting point metal selected from W, Mo, Cr, Ni, Ta, Au, Pt, Pd or any combination or alloy thereof, the secondary layer being substantially free of carbide forming element from the primary layer; and an overcoat of Ag, Ni, Cu, Au, Pd, Pt, Rh, Os, Tr, Re, any combination or alloy thereof, the metal of the secondary layer being different to the metal of the overcoat. The invention further relates to methods for producing such coated diamonds and abrasive-containing tools including such coated diamonds.
28 Citations
14 Claims
-
1. A coated diamond comprising:
-
a diamond substrate; a primary carbided layer of a carbide forming element, a secondary layer of a high melting point metal selected from W, Mo, Cr, Ni, Ta, Au, Pt, Pd or any combination or alloy thereof, the secondary layer being substantially free of carbide forming element from the primary layer; and an overcoat of Ag, Ni, Cu, Au, Pd, Pt, Rh, Os, Ir, Re, any combination or alloy thereof, the metal of the secondary layer being different to the metal of the overcoat. - View Dependent Claims (2, 3, 4, 5, 6, 12, 13, 14)
-
-
7. A method of producing coated diamond material, the method including the steps of:
-
providing a diamond substrate; coating the diamond substrate with a primary carbided layer of a carbide forming element, coating the primary layer with a secondary layer of a high melting point metal selected from W, Mo, Cr, Ni, Ta, Au, Pt, Pd or any combination or alloy thereof; and coating the secondary layer with an overcoat of Ag, Ni, Cu, Au, Pd, Pt, Rh, Os, Ir, Re, any combination or alloy thereof the metal of the secondary layer being different to the metal of the overcoat. - View Dependent Claims (8, 9, 10, 11)
-
Specification