Fiber reinforced composites and process for manufacture

Details Fiber reinforced composites and process for manufacture Fiber reinforced composites and process for manufacture

1990-12-20

1992-01-07

Chaudhuri, Olik

Compositions: ceramic

Ceramic compositions

Refractory

428113, 428288, 427185, 264 65, C04B 3502

Patent

active

050791966

ABSTRACT:
In a process for manufacturing fiber reinforced composites made or inorganic sinterable material and inorganic fibers the fibers are continuously passed through a bath which works acccording to the fluidized bed principle and which contains a solution of at least one metal alkoxide of the elements of the first to the fourth main groups of the periodic table and the forth and fifth subgroups of the periodic table, which solution already comprises products of hydrolysis and their condensation products, and the fibers moistened with the solution are wound one upon the other to form layers, the moistened and wound fibers are dried, the metal alkoxides on the fibers are completely hydrolyzed and the products of hydrolysis are polycondensated, and the layers of the fibers being adhered by the powder and the polycondensation products of the products of hydrolysis of the metal alkoxides are hot pressed.

REFERENCES:
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patent: 4460639 (1984-07-01), Chi et al.
patent: 4485179 (1984-11-01), Brennan et al.
Rice, "Processing of Advanced Ceramic Composites", Natl. Res. Soc. Symp. Proc., vol. 32 (1984), Elsevier Pub. pp. 337-348.
Uhlmann, ed. Glass: Science and Technology, vol. 2, Academic Press (1984), pp. 219-220.
Walker et al., "Prep and Properties of Monolithic and Composite Ceramics Produced by Polymer Pyrolysis", Ceramic Bulletin, vol. 62(8), (1983), pp. 916-923.
Lannutti et al., "Sol-Gel Derived Coatings on SiC and Silicate Fibers Ceramic Engineering and Science Proceedings", 5 (1984), Jul.-Aug. No. 7/8.
Chemical Abstracts, 104:154468m (Maeda et al.).

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