Process for making barium containing silicate glass powders

Details Process for making barium containing silicate glass powders Process for making barium containing silicate glass powders

1998-08-26

1999-12-14

Silverman, Stanley S.

Glass manufacturing

Processes

Sol-gel or liquid phase route utilized

65 174, 65 211, 264 9, 501 27, C03B 800, C03B 1906

Patent

active

060002417

ABSTRACT:
A precursor solution composition is provided for making highly pure, fine barium-containing silicate glass powders and specifically barium aluminoborosilicate (BABS) glass powders. An atomized precursor solution containing colloidal silica, a water soluble source of barium, boric acid, and aluminum nitrate is used to make the powders. After mixing, the liquid precursor solution is formed into fine droplets, classified for size, and pyrolyzed into fine powders. The resulting spherical particles of the BABS glass is in the 0.1 to 10 micrometer size range.

REFERENCES:
patent: 2935375 (1960-05-01), Boucher
patent: 4220582 (1980-09-01), Orlowski et al.
patent: 5061682 (1991-10-01), Aksay et al.
patent: 5176732 (1993-01-01), Block et al.
patent: 5358695 (1994-10-01), Helble et al.
patent: 5616165 (1997-04-01), Glicksman et al.

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