Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1993-06-09
1995-03-14
Walsh, Donald P.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75245, C22C 2912
Patent
active
053973739
ABSTRACT:
A raw material for high oxygen chromium targets comprising chromium crystalline particles dispersed in metallic chromium wherein at least a portion of the surface of all the crystals constituting the oxide crystalline particles is in contact with the matrix of said metallic chromium. And a method of producing a raw material for high oxygen chromium targets comprising chromium oxide crystalline particles dispersed in metallic chromium characterized by heat-treating metallic chromium containing a solid solution of oxygen or oxide particles as a starting material, and precipitating or crystal-growing the oxygen or oxide particles as chromium oxide crystalline particles having a particle size of 0.1 to 100, .mu.m, thereby obtaining a raw material for chromium targets.
REFERENCES:
patent: 4917722 (1990-04-01), Kuniya et al.
Fujinuma Tatsuhiko
Kobayashi Ken-ichi
Takahashi Manabu
Tomioka Hidenori
Japan Metals & Chemicals Co. Ltd.
Mai Ngoclan T.
Walsh Donald P.
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