Method for synthesizing MgO--Al.sub.2 O.sub.3 --SiO.sub.2 glasse

Details Method for synthesizing MgO--Al.sub.2 O.sub.3 --SiO.sub.2 glasse Method for synthesizing MgO--Al.sub.2 O.sub.3 --SiO.sub.2 glasse

1985-08-13

1986-08-05

Kellogg, Arthur

Glass manufacturing

Processes

Forming product or preform from molten glass

65 182, 427163, 427252, 427253, C03B 3707

Patent

active

046041184

ABSTRACT:
A vapor phase method for the synthesis of MgO--Al.sub.2 O.sub.3 --SiO.sub.2 products, including MgO--Al.sub.2 O.sub.3 --SiO.sub.2 glasses of optical quality, wherein SiCl.sub.4, aluminum halide, and organometallic magnesium vapors are oxidized by flame oxidation and the oxides collected and sintered to glass or ceramic products, is described. A added shield gas stream is provided during flame oxidation of the vapors to reduce or prevent MgCl.sub.2 by-product formation at the burner and in the product.

REFERENCES:
patent: 4310341 (1982-01-01), Barns et al.
patent: 4378985 (1983-04-01), Powers
patent: 4406680 (1983-09-01), Edahiro et al.
patent: 4501602 (1985-02-01), Miller et al.
patent: 4537864 (1985-08-01), Tick
patent: 4558144 (1985-12-01), Fay et al.

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