With silicon carbide reinforced titanium - aluminide - composite materials.

摘要

Parallel array of high temp. filaments is placed on receiving surface and RF sprayed with particles over 100 micron in size of Ti base metal to impregnate and embed fibres. Fibre is pref. SiC and pref. matrix is Ti-6A1-4V, Ti-6242, Ti-4A1-21Cb, TiA1 or TiA13; alloy pref. contains less than 2000 ppm oxygen. RF is pref. 2-5 and esp. 2-3 megahertz. In composite, metal thickness is up to 4 times dia. of fibres and fibres are 3-80% or 20-40% of vol. Composite structure is formed from plurality of layers such that interfaces at which layers are joined lay along tangent lines extending from aligned filaments, the tangents being parallel to each other; consolidation is typically by hot isostatic pressing.