Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1993-12-02
1995-08-08
Mai, Ngoclan
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
419 32, 419 39, 419 48, 419 56, C22C 1900, C22C 3800, B22F 312
Patent
active
054395003
ABSTRACT:
A magneto-optical sputter target having a composition comprising at least one rare earth element and at least one transition metal, with a structure which includes a transition metal constituent and a finely mixed alloy constituent of a rare earth phase and a rare earth/transition metal intermetallic compound. The structure of the present target contains a minimum of the intermetallic compound. A method of producing the present sputter target includes mixing particles of the transition metal constituent (preferably only alloyed transition metals) with particles of the finely mixed alloy to produce a powder blend and subjecting the powder blend to a pressing operation in an oxidizing inhibiting environment for a time and at a temperature and pressure which minimizes the rare earth/transition metal intermetallic compound content of the target.
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Mai Ngoclan
Materials Research Corporation
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