Process for the manufacture of a thermostructural composite mate

Details Process for the manufacture of a thermostructural composite mate Process for the manufacture of a thermostructural composite mate

1993-01-06

1994-03-01

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

From cellulosic material

264 295, 264 296, 264 65, 4234474, C23C 1602

Patent

active

052904911

ABSTRACT:
The thermostructural composite material is produced by forming a fibrous preform made from refractory fibers coated with a sizing agent. The preform is densified by a refractory matrix, in particular ceramic, while a carbon interphase is provided between the fibers and the matrix. The fibrous preform is made from refractory fibers coated with a sizing agent of the type that leaves behind a carbon residue upon thermal decomposition. The carbon interphase is produced by the thermal degradation of the sizing agent, occurring for example after the preform is made. The sizing agent is chosen among phenolic, acrylic and cellulose resins, and in particular carboxymethylcellulose.

REFERENCES:
patent: 3895084 (1975-07-01), Bauer
patent: 4597923 (1986-07-01), Kennedy
patent: 4699896 (1987-10-01), Sing et al.
patent: 4752036 (1988-06-01), Thebault
patent: 4837230 (1989-06-01), Chen et al.
patent: 4994216 (1991-02-01), Hintzen et al.
patent: 5039635 (1991-08-01), Stempin et al.
Chemical Abstracts, vol. 106, No. 8, Feb. 1987, Ref. 54837d, Nakano, et al, "Silicon Carbide Fibre-reinforced Carbon Composites", p. 298.
6045 Ceramic Engineering and Science Proceedings, vol. 9, No. 7-8, Jun. 1988, R. A. Lowden, et al.

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