Compositions: ceramic – Ceramic compositions – Refractory
Patent
1991-04-04
1994-12-06
Walsh, Donald P.
Compositions: ceramic
Ceramic compositions
Refractory
501127, 427181, 427206, 427403, 427404, 4274191, 4274432, 428375, 428379, 428902, C04B 3576
Patent
active
053710509
ABSTRACT:
A method of forming fiber reinforced aluminum phosphate bonded material having improved strength at elevated temperatures. The method comprises the steps of: (a) preparing a slurry by blending alumina and aluminum phosphate solution, the slurry being substantially free of silica; (b) providing a fiber substrate coated with a metal selected from the group consisting of nickel, tungsten, molybdenum, platinum, copper, silver, gold, palladium, cobalt, chromium and titanium; (c) infiltrating the slurry into the fiber substrate; and (d) curing the infiltrated substrate to form a fiber reinforced aluminum phosphate bonded composite material. In a preferred embodiment of the present invention, the fiber substrate is made from SiC fibers and the refractory metal is electrolessly coated nickel.
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Belitskus David L.
Boland Daniel J.
Evans W. Thomas
Kampert William P.
Marra Robert A.
Aluminum Company of America
Mai Ngoclan T.
Pearce-Smith David W.
Walsh Donald P.
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