Lightweight fiber reinforced high temperature stable glass-ceram

Details Lightweight fiber reinforced high temperature stable glass-ceram Lightweight fiber reinforced high temperature stable glass-ceram

1982-11-01

1987-11-03

Lovering, Richard D.

Stock material or miscellaneous articles

Composite

Of quartz or glass

277 96, 277 962, 415174, 418178, 418179, 428446, B32B 516, B32B 904, B32B 1706, F04D 2908

Patent

active

047043326

ABSTRACT:
A composite material suitable for use as an abradable seal is described. The seal comprises a high temperature stable fiber reinforced glass or glass-ceramic matrix base having at least one layer of abradable ceramic material, plasma sprayed or bonded to it. The ceramic abradable layer has a working temperature up to at least 3000.degree. F. (1648.degree. C.) and is oxidatively stable. The abradable seal has particular utility in a gas turbine engine.

REFERENCES:
patent: 3053694 (1962-09-01), Daunt et al.
patent: 4247249 (1981-01-01), Siemers
patent: 4263367 (1981-04-01), Prewo
patent: 4289446 (1981-09-01), Wallace
Rose et al.: "The Condensed Chemical Dictionary", Sixth Edition, Reinhold Publ. Corp., New York, 1961, p. 769.

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