Thermally stable ultra-hard polycrystalline materials and...

Details Thermally stable ultra-hard polycrystalline materials and... Thermally stable ultra-hard polycrystalline materials and...

C - Chemistry, Metallurgy

04

B

C04B 35/52 (2006.01) B01J 3/06 (2006.01) B23B 51/00 (2006.01) B23P 5/00 (2006.01) C04B 35/63 (2006.01) C04B 35/645 (2006.01) E21B 10/46 (2006.01) C01B 31/06 (2006.01) C01B 35/14 (2006.01)

Patent

CA 2577572

Thermally stable ultra-hard polycrystalline materials and compacts comprise an ultra-hard polycrystalline body that wholly or partially comprises one or more thermally stable ultra-hard polycrystalline region. A substrate can be attached to the body. The thermally stable ultra-hard polycrystalline region can be positioned along all or a portion of an outside surface of the body, or can be positioned beneath a body surface. The thermally stable ultra-hard polycrystalline region can be provided in the form of a single element or in the form of a number of elements. The thermally stable ultra-hard polycrystalline region can be formed from precursor material, such as diamond and/or cubic boron nitride, with an alkali metal catalyst material. The mixture can be sintered by high pressure/high temperature process.

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