Transparent glass-ceramics especially suitable for use as stove

Details Transparent glass-ceramics especially suitable for use as stove Transparent glass-ceramics especially suitable for use as stove

1982-12-20

1984-06-19

Schor, Kenneth M.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 3014, C03C 2100

Patent

active

044551606

ABSTRACT:
This invention is directed to a method for making transparent glass-ceramic articles containing .beta.-quartz solid solution as the predominant crystal phase that are resistant to attack by the fumes generated in a coal or wood burning stove so as to render them particularly suitable for windows in such stoves. One embodiment of the inventive method comprises subjecting the precursor glass article to a H.sup.+ ion for Li.sup.+ ion exchange and subsequently heat treating the glass article to crystallize it to a glass-ceramic. A second embodiment of the inventive method comprises heat treating the precursor glass to crystallize it to a glass-ceramic and then subjecting the glass-ceramic article to a K.sup.+ ion for Li.sup.+ ion exchange.

REFERENCES:
patent: 3406279 (1968-10-01), Ziver
patent: 3428513 (1969-02-01), Denman
patent: 3573076 (1971-03-01), Rittler
patent: 3597179 (1971-08-01), Simmons
Karstetter et al., 50 J. Amer. Ceram. Soc. #3, pp. 133-137; 3-21-67.

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