Sintered article of diamond and method for production thereof

Details Sintered article of diamond and method for production thereof Sintered article of diamond and method for production thereof

1989-12-01

1991-07-09

Group, Karl

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 87, 501 99, 51309, C04B 3556

Patent

active

050305964

ABSTRACT:
A sintered article of diamond is obtained by coating the surface of diamond particles with 30 to 0.1% by volume, based on the total volume of the diamond particles and aids, of at least one member selected from the group consisting of the transition metals of Groups 4a, 5a, and 6a in the Periodic Table of Elements and boron and silicon, and sintering the coated diamond particles under conditions of high pressure and high temperature, which sintered article consists of 70 to 99.8% by volume of diamond and 30 to 0.2% by volume of the carbide of the coating substance. A method for the production of the sintered article of diamond is also disclosed.

REFERENCES:
patent: 4084942 (1978-04-01), Villalobos
patent: 4124401 (1978-11-01), Lee et al.
patent: 4167399 (1979-09-01), Lee et al.
patent: 4695321 (1987-09-01), Akashi et al.

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