Patent ID: 6607835
Filing Date: 2003-08-19
Classification: B22F,C22C,E21B,Y10T

Abstract:
A composite construction comprising:a first structural phase comprising a hard material selected from the group consisting of cermet materials, polycrystalline diamond, polycrystalline cubic boron nitride, and mixtures thereof; and a second structural phase formed from hard material selected from the group consisting of cermet materials, polycrystalline diamond, polycrystalline cubic boron nitride, and mixtures thereof, the second structural phase being relatively softer than the first structural phase, and the second structural phase being in contact with at least a portion of the first structural phase; wherein the composite construction has a material microstructure that includes repeated structural units comprising an ordered arrangement of first and second structural phases; and wherein the repeated structural units are disposed across a working surface of the composite construction.