A composite compact component made of a composite compact consisting of a diamond or BN powder bonded to a hard sintered alloy base during a sintering operation, and a substrate composed of steel or a hard sintered alloy bonded to the base of the composite compact through a high strength filler metal...http://www.google.de/patents/US4686080?utm_source=gb-gplus-sharePatent US4686080 - Composite compact having a base of a hard-centered alloy in which the base is joined to a substrate through a joint layer and process for producing the same
