Method of making alkali metal, calcium fluorosilicate glass-cera

Details Method of making alkali metal, calcium fluorosilicate glass-cera Method of making alkali metal, calcium fluorosilicate glass-cera

1982-09-13

1983-08-09

Fisher, Richard V.

Glass manufacturing

Processes

Devitrifying glass or vitrifying crystalline glass

C03C 322, C03C 304

Patent

active

043976700

ABSTRACT:
The instant invention is directed to the production of highly crystalline glass-ceramic articles demonstrating high intrinsic mechanical strength and toughness containing crystals of canasite and/or agrellite and/or fedorite as the predominant crystal phase. The articles have overall compositions consisting essentially, expressed in terms of weight percent on the oxide basis, of about

REFERENCES:
patent: 3799836 (1974-03-01), Rogers et al.
patent: 3839056 (1974-10-01), Grossman
Ghose et al., "Agrellite, Na(Ca,Re).sub.2 Si.sub.4 O.sub.10 F . . . ", American Mineralogist, vol. 64, 1979, pp. 563-572.

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