Composite carbide powder used for cemented carbide and method of

Details Composite carbide powder used for cemented carbide and method of Composite carbide powder used for cemented carbide and method of

1997-05-19

1999-07-27

Koslow, Melissa

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 93, 423440, C01B 3134

Patent

active

059289767

ABSTRACT:
In order to provide cemented carbide, provision is made about tungsten carbide powder which has a grain size not smaller than 1 .mu.m and which is mixed with carbon powder and chromium powder to form raw powder. The tungsten carbide powder is formed by fine primary crystal particles of tungsten carbide and satisfies an inequality given by:

REFERENCES:
patent: 3480410 (1969-11-01), Hummer
patent: 4950328 (1990-08-01), Odani et al.
patent: 5061661 (1991-10-01), Moyle et al.
Abstract for JP 5-147916, Jun. 15, 1993.
Patent Abstracts of Japan, vol. 017, No. 533 (C-1114), Sep. 27, 1993.
Database WPI, Seciton Ch. Week 8009 Derwent Publications Ltd., London, GB, Jan. 31, 1980.

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