Colored corundum composite and processes for its production and

Details Colored corundum composite and processes for its production and Colored corundum composite and processes for its production and

1992-07-08

1993-10-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

106450, 106451, 106456, 106480, C04B 3510

Patent

active

052566110

ABSTRACT:
Colored corundum composite with a matrix of .alpha.-Al.sub.2 O.sub.3, as formed by sol-gel process ending in sintering and size reduction steps with addition of oxide pigments (or precursors of such oxide pigments, formable to the oxide pigment in sinter heating) added to the sol before full gelation thereof.

REFERENCES:
patent: 2618567 (1952-11-01), Comstock, III
patent: 3108888 (1963-10-01), Bugosh
patent: 3454385 (1969-07-01), Amero
patent: 3909991 (1975-10-01), Coes, Jr.
patent: 4285726 (1981-08-01), Hund et al.
patent: 4314827 (1982-02-01), Leitheiser et al.
patent: 4623364 (1986-11-01), Cottringer et al.
Database WPIL GB Derwent Publications Ltd. London, GB Patent Abstracts of Japan, vol. 10, No. 94 (C-388) Apr. 11, 1986.

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