Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1996-01-31
1998-01-20
Nelson, Peter A.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75244, 501 96, 428550, C22C 2914, C04B 3558, B22F 300
Patent
active
057103828
ABSTRACT:
Aluminum nitride powder, aluminum nitride platelets, powdered solid solutions of aluminum nitride and at least one other ceramic material such as silicon carbide, and composites of aluminum nitride and transition metal borides or carbides are prepared by combustion synthesis at low gaseous nitrogen pressures. Porous bodies of aluminum nitride or composites of aluminum nitride and transition metal borides or carbides are also prepared by combustion synthesis at these pressures. The porous bodies are suitable for infiltration, either as formed or after being coated with at least one layer of a silicate material, by polymers or metals. The powders are also suitable for preparing dense sintered bodies. The aluminum nitride powder is also used to prepare AlN sintered bodies.
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Dunmead Stephen D.
Guiton Theresa A.
Howard Kevin E.
Moore William G.
Morse Kevin C.
Nelson Peter A.
The Dow Chemical Company
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