Method for preparing Al.sub.2 O.sub.3 powder and products

Details Method for preparing Al.sub.2 O.sub.3 powder and products Method for preparing Al.sub.2 O.sub.3 powder and products

1985-02-25

1989-07-04

Nelson, Peter A.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Of inorganic materials

264 60, 4285395, 427436, B29C 2760

Patent

active

048448486

ABSTRACT:
A composite made by milling Al.sub.2 O.sub.3 gel to a powder in the size range of from about 20 mesh to about 400 mesh, mixing said Al.sub.2 O.sub.3 gel powder with a reinforcement material consisting of SiC, SiO.sub.2, C, Al.sub.2 O.sub.3, ZrO.sub.2, Si.sub.2 N.sub.4, BN, B.sub.4 O, Y.sub.2 O.sub.3, TiC, TiB.sub.2, TiN and aluminosilicate, compressing and firing at an elevated temperature.

REFERENCES:
patent: 4118450 (1978-10-01), Nakamura et al.
patent: 4301037 (1981-11-01), Sanchez et al.
patent: 4341663 (1982-07-01), Derleth et al.
patent: 4419394 (1983-12-01), Crone, Jr.

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