Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...
Reexamination Certificate
2011-07-19
2011-07-19
King, Roy (Department: 1733)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or purifying free metal powder or producing or...
Reexamination Certificate
active
07981190
ABSTRACT:
The Ultrafine alloy particles of an alloy includes a primary metal and one or more subsidiary metals solid-soluble in said primary metal, a content of the one or more subsidiary metals is in a range of 1 wt % to 25 wt % and the one or more subsidiary metals solid-solved in the primary metal inhibit coalescence or oxidation of the ultrafine alloy particles including the primary metal, or both. The process introduces powder materials including the primary metal and the one or more subsidiary metals for producing the ultrafine alloy particles into a thermal plasma flame under reduced pressure to form a vapor-phase mixture and introduces a cooling gas toward an end portion of the thermal plasma flame in a supply amount sufficient for quenching the vapor-phase mixture so as to generate the ultrafine alloy particles.
REFERENCES:
patent: 4533383 (1985-08-01), Miura et al.
patent: 4812166 (1989-03-01), Saiki et al.
patent: 5221322 (1993-06-01), Tokuoka et al.
patent: 6379419 (2002-04-01), Celik et al.
patent: 6444009 (2002-09-01), Liu et al.
patent: 6582763 (2003-06-01), Nishimura et al.
patent: 5-43791 (1993-07-01), None
patent: 2000-219901 (2000-08-01), None
Fujii Takashi
Nakamura Keitaroh
King Roy
Mai Ngoclan T
Nisshin Engineering Inc.
Nisshin Seifun Group Inc.
Whitham Curtis Christofferson & Cook PC
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