Patent ID: 6350294
Filing Date: 2002-02-26
Classification: C22C,H01H,Y10T

Abstract:
A powder-metallurgically produced composite material comprising a matrix from a metal with a melting point of at most 1,200Â° C. and a granular additive embedded in this matrix comprising at least two refractory components;wherein one or a first group of lower melting refractory component(s) has a melting point in the range of 1,500 to 2,400Â° C. and a second or a second group of higher melting refractory component(s) has a melting point above 2,400Â° C.; wherein the refractory components are selected from group Vb (V, Nb, Ta) and group Vlb (Cr, Mo, W) metals, as well as their nitrides, carbides, silicides, borides and mixtures thereof, and TiC, TiN, and TiB2; wherein one of the lower melting refractory component(s) is Cr and one of the higher melting refractory component(s) is selected from the group of W, Mo, and WC; and wherein the refractory components comprise mixed crystals or intermetallic phases of each other.