Ceramic composites with improved thermal shock resistance

Details Ceramic composites with improved thermal shock resistance Ceramic composites with improved thermal shock resistance

1989-03-07

1993-05-04

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 85, 501127, C04B 3544

Patent

active

052081931

ABSTRACT:
A high density, shock resistant ceramic comprising from 1 to about 4 mols of a a dense spinel ceramic matrix having dispersed therein, 1.5 to 1, respectively, of a metal oxide derived from a decomposable salt of said metal and having a thermal expansion characteristic different from said dense spinel ceramic matrix and at the decomposition temperature a volume less than that exhibited by its salt form and a process for preparing same.

REFERENCES:
patent: 2775525 (1956-12-01), Austin et al.
patent: 3138469 (1964-06-01), Craig et al.
patent: 3333971 (1967-08-01), McKenna
patent: 3531308 (1970-09-01), Bagley
patent: 4389492 (1983-06-01), Tanemura
patent: 4400431 (1983-08-01), Henslee et al.
patent: 4587225 (1986-05-01), Tsukuma et al.
Smyth et al., "Refractory Oxides for High Temperature MHD Heaters", High Temp. Science 13, 189-217 (1980).
Materials Processing Center 1987-1988.

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