Process for strengthening aluminum based ceramics and material

Details Process for strengthening aluminum based ceramics and material Process for strengthening aluminum based ceramics and material

1998-03-31

2000-08-29

Marcheschi, Michael

Compositions: ceramic

Ceramic compositions

Refractory

501128, 4272551, 4272553, 264 82, C04B 3510

Patent

active

061108553

ABSTRACT:
A process for strengthening aluminum based ceramics is provided. A gaseous atmosphere consisting essentially of silicon monoxide gas is formed by exposing a source of silicon to an atmosphere consisting essentially of hydrogen and a sufficient amount of water vapor. The aluminum based ceramic is exposed to the gaseous silicon monoxide atmosphere for a period of time and at a temperature sufficient to produce a continuous, stable silicon-containing film on the surface of the aluminum based ceramic that increases the strength of the ceramic.

REFERENCES:
patent: H1166 (1993-04-01), Kim et al.
patent: 3837891 (1974-09-01), Tietz
patent: 4139833 (1979-02-01), Kirsch
patent: 5145719 (1992-09-01), Towata et al.
patent: 5273619 (1993-12-01), Masahiro et al.

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