Production of preforms from ceramic or metallic fibers

Details Production of preforms from ceramic or metallic fibers Production of preforms from ceramic or metallic fibers

1990-10-03

1993-02-23

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

264 63, 26421111, 2643282, 264344, C04B 3804

Patent

active

051887827

ABSTRACT:
Preforms are produced from ceramic and/or metallic fibers by injection molding or extruding a mixture containing the fibers and a thermoplastic binder, said thermoplastic binder being polyoxymethylene, which after the shaping is removed by treatment in a gaseous acid-containing atmosphere or in a gaseous BF.sub.3 -containing atmosphere.

REFERENCES:
patent: 4619798 (1986-10-01), Tanaka
patent: 4624812 (1986-11-01), Farrow
patent: 5043121 (1991-08-01), Wingefeld
Advanced Ceramics Report, vol. 4, No. 8, Aug. 1989, p. 6.
Chemical Abstracts, vol. 103, entry 186625 (1985).

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