Refractory material containing fused silica and crystalline phas

Details Refractory material containing fused silica and crystalline phas Refractory material containing fused silica and crystalline phas

1975-11-03

1977-04-19

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 3514

Patent

active

040186156

ABSTRACT:
The high temperature dimensional stability and resistance to thermal shock of silica articles is improved by ensuring that from 45-60% by weight of the article consists of crystalline phase silica. Such levels of crystalline phase silica may be attained by intimately mixing finely divided particles of fused silica and crystalline phase silica, molding the mixture to the required shape and then heating the molded mixture at a temperature sufficiently high enough to sinter the particles, but not high enough to cause rapid crystallization of the fused silica.

REFERENCES:
patent: 3463650 (1969-08-01), McCreight et al.
patent: 3684538 (1972-08-01), Wright

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