Process for producing low shrink ceramic composition

Details Process for producing low shrink ceramic composition Process for producing low shrink ceramic composition

1995-04-12

1996-05-21

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 19, 264 56, 264 60, 428432, 428433, 428688, C03C 1400

Patent

active

055189695

ABSTRACT:
This invention provides a hard, strong ceramic body and method of manufacture whereby the body, after being formed into the desired shape and size can then be fired into a monolithic structure without any shrinkage or distortion during the firing operation. The "green," unfired ceramic composition comprises one or more powdered refractories and one or more powdered glasses which have a melting point below the softening point of the selected refractory material. Preferred refractories are alumina and zirconia; preferred glasses are lead borosilicate and barium borosilicate. The composition may also contain a metal powder.

REFERENCES:
patent: 4289719 (1981-09-01), McIntosh et al.
patent: 4748136 (1988-05-01), Mahulikar et al.
patent: 4867935 (1989-09-01), Morrison, Jr.
patent: 4883778 (1989-11-01), SingDoe et al.
patent: 4906596 (1990-03-01), Joslin et al.
patent: 5102720 (1992-04-01), Raj

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