Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1993-10-26
1994-11-15
Walsh, Donald P.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75230, 75232, 419 10, 419 12, 419 13, 419 14, 419 19, 419 24, 419 45, 419 23, B22F 500
Patent
active
053644425
ABSTRACT:
A composite electrode for electrochemical processing having improved high temperature properties, and a process for making the electrode by combustion synthesis. A composition from which the electrode is made by combustion synthesis comprises from about 4% to about 90% by weight of a particulate or fibrous combustible mixture which, when ignited, is capable of forming an interconnected network of a ceramic or metal-ceramic composite, and from about 10% to about 60% by weight of a particulate or fibrous filler material capable of providing the electrode with improved oxidation resistance and maintenance of adequate electrical conductivity at temperatures above 1000.degree. C. The filler material is molybdenum silicide, silicon carbide, titanium carbide, boron carbide, boron nitride, zirconium boride, cerium oxide, cerium oxyfluoride, or mixtures thereof.
REFERENCES:
patent: 4909842 (1990-04-01), Dunmead et al.
patent: 5149595 (1992-09-01), Kojo et al.
patent: 5188678 (1993-02-01), Sekhar et al.
patent: 5256368 (1993-10-01), Oden et al.
Greaves John N.
Moltech Invent S.A.
Walsh Donald P.
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