Alumina composite body and method for its manufacture

Details Alumina composite body and method for its manufacture Alumina composite body and method for its manufacture

1986-04-24

1987-06-16

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75229, 419 2, 419 19, 419 23, C22C 2912

Patent

active

046734350

ABSTRACT:
An alumina composite body comprising a plurality of elongated alumina elements oriented in random directions and interconnected so as to constitute a porous matrix, and aluminum and silicon tightly filling the porous matrix; and a method of manufacturing an alumina composite body comprising reacting a body of silica, or a body of a silicon compound such as silicon carbide or silicon nitride which has been at least partially oxidized to produce silica, with aluminum so as to change the silica into alumina.

REFERENCES:
patent: 2702750 (1955-02-01), George
patent: 2729880 (1956-01-01), Miller
patent: 2894319 (1959-07-01), Thomson
patent: 2961325 (1960-11-01), Mayfield
patent: 3526485 (1970-09-01), Dawihl et al.
patent: 3816080 (1974-06-01), Bomford et al.
patent: 3841847 (1974-10-01), Jones et al.
patent: 4193793 (1980-03-01), Cheung

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