Method for suppressing crystallization of fluoride glass article

Details Method for suppressing crystallization of fluoride glass article Method for suppressing crystallization of fluoride glass article

1991-05-13

1992-09-15

Lindsay, Robert L.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 33, 65DIG16, C03C 1722

Patent

active

051474352

ABSTRACT:
Crystallization of a fluoride glass article is suppressed by treating the surface(s) of the fluoride glass article with a solution of a fluorine-containing alkali metal compound or a fluorine-containing ammonium compound such as, e.g., LiPF.sub.6, NaBF.sub.4 or NH.sub.4 BF.sub.4, in a nonaqueous solvent such as, e.g., ethanol, N,N-dimethylformamide or acetonitrile. The treatment can be made at room temperature.

REFERENCES:
patent: 4341873 (1982-07-01), Robinson et al.
patent: 4597786 (1986-07-01), Nakai et al.
patent: 4842631 (1989-06-01), Hutta
patent: 4895813 (1990-01-01), Bautista et al.
Electronics Letters, vol. 22, No. 18 (1986), 949-950.

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