Metallized amorphous silica fabric for high temperature use

Details Metallized amorphous silica fabric for high temperature use Metallized amorphous silica fabric for high temperature use

1979-04-27

1981-01-06

Kendall, Ralph S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428268, 428332, 428388, 55361, 55522, 55527, 55524, 427229, 427404, 427427, B01D 3908, B01D 3920

Patent

active

042437156

ABSTRACT:
A fabric of amorphous silica is provided having greatly improved life for bag collectors at high temperatures. This is accomplished by applying a thin coating of gold on the amorphous silica fibers of which the fabric is made. The gold is non-reactive at high temperature and has sufficient lubricity to lubricate the fibers and prevent abrasion of adjacent fibers by each other. The gold coating additionally helps protect the amorphous silica fibers from devitrification. An additional coating of indium may also be applied to form a liquid film at high temperature for increased lubrication. The coating may be applied by dipping or spraying the fabric.

REFERENCES:
patent: 2979424 (1961-04-01), Whitehurst et al.
patent: 3006403 (1961-10-01), Cooper
patent: 3019515 (1962-02-01), Whitehurst et al.
patent: 3189563 (1965-06-01), Hauel

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