Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1985-06-24
1986-09-09
Lindsay, Robert
Glass manufacturing
Processes
Forming product or preform from molten glass
65 315, 65 32, 65DIG16, C03B 37027
Patent
active
046107088
ABSTRACT:
In the manufacture of preforms for metal halide optical fibers by the vapor deposition of metal halide layers on the inside surface of a silicate glass substrate tube, silicon release from the tube side wall by fluorine-containing reactants used in the vapor deposition process is reduced by the preliminary application of a slurry coating of a sinterable, fluorine-resistant metal halide or other glass composition which is dried and sintered to a passivation layer.
REFERENCES:
patent: 4378987 (1983-04-01), Miller et al.
patent: 4415404 (1983-11-01), Riegl
patent: 4493721 (1985-01-01), Auwerda et al.
patent: 4560667 (1985-12-01), Lucas et al.
Sarhangi Ahmad
Scherer George W.
Corning Glass Works
Lindsay Robert
van der Sterre K.
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