Multilayer fiber-matrix ceramic composite material and process f

Details Multilayer fiber-matrix ceramic composite material and process f Multilayer fiber-matrix ceramic composite material and process f

1992-02-04

1994-09-06

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156155, 1563074, 156314, 156297, 156299, C03B 800, C03C 1400, C04B 3500

Patent

active

053445120

ABSTRACT:
Woven or nonwoven long fiber sheets filled with two precursors each constituting an intermediate stage in a process for the preparation of a vitreous ceramic composition by the sol-gel route by hydrolysis and polycondensation using alcoholates or analogous compounds as the starting materials, that is to say an interface precursor in the form of a gel rich in water and a matrix precursor in the form of discrete particles capable of sintering at relatively low temperature, are stacked; the fibrous structure is compressed in the direction of stacking and the whole is heat-treated in order to convert the two precursors into a continuous matrix.

REFERENCES:
patent: 4460639 (1984-07-01), Chi et al.
patent: 4568594 (1986-02-01), Hordonneau et al.
patent: 5078818 (1992-01-01), Han et al.
"Advances in Ceramics", vol. 21; Ceramic Powder Science 1987, ACS, Inc., Colomban Sol-Gel Synthesis etc. pp. 139-154.
Chem. Absts. 82556d, vol. 112, No. 10,5, Mar. 1990, p. 328.
Chem. Absts. 233579h, vol. 114, No. 24,17, Jun. 1991, p. 302.
Chem. Absts. 233580b, vol. 114, No. 24,17, Jun. 1991, p. 302.

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