Method of producing .beta.-spodumene bodies

Details Method of producing .beta.-spodumene bodies Method of producing .beta.-spodumene bodies

1997-12-15

1999-10-05

Group, Karl

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 27, 501128, 501129, 65 338, C03C 1012, C03C 304

Patent

active

059623519

ABSTRACT:
Beta-spodumene bodies and method of preparing the bodies that involves providing a uniform plastic batch of inorganic raw materials, organic binder, and vehicle, wherein the inorganic raw materials are composed of, in percent by weight, about 75% to 95% minerals, and about 5% to 25% glass. The batch is formed into a green body that is fired to produce a body composed substantially of beta-spodumene, and having a thermal expansion coefficient of <10.times.10.sup.-7 /.degree.C.(0-800.degree. C.), and a strength of .gtoreq.4 Ksi.

REFERENCES:
patent: 3600204 (1971-08-01), Beall et al.
patent: 3856497 (1974-12-01), Hummel
patent: 3938978 (1976-02-01), Hummel
patent: 4126477 (1978-11-01), Reade
patent: 5403787 (1995-04-01), Day
JP 01 203264 A, Aug. 1989 Patent Abstracts of Japan, vol. 013, No. 504 (C-653), Nov. 1989.

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