Fiber-reinforced metal or ceramic matrices
AssigneeWestinghouse Electric Corp.
InventorsClarence A. Andersson, Deborah P. Partlow, Bulent E. Yoldas, Raymond J. Bratton
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Abstract
A composite material having a fiber system embedded in a host matrix material. The fiber system has a protective reaction barrier around the embedded fibers to prevent deleterious chemical or mechanical reaction between the fiber and matrix. The fiber coating is applied by immersion of the fiber system into an alkoxide solution of the desired oxide precursor with controlled immersion and withdrawal rates with subsequent drying, heating to convert to a pure oxide state, and where required, post processing, to convert the oxide coating to a carbide or nitride, for example.
Claims15
A composite structure with embedded coated fibers made by the process of:
- A) immersing a fiber system into a polymerized solution of an oxide precursor, prepared by reaction of a metal alkoxide with a predetermined controlled amount of water in a mutual solvent so as to coat said fiber system with said oxide precursor;
- B) removing said coated fiber system from said solution after a predetermined time period;
- C) drying said removed fiber system;
- D) heating said dried fiber system to drive off any organic components and to convert the coating on said fiber system to a pure oxide state;
- E) introducing said oxide coated fiber system into a host matrix material;
- and
- F) processing said host matrix material, with said introduced fiber system, to form a dense solid composite material.
Dependencies are inferred from the claim text.