Manufacture of metal/fiber composites

摘要

In the pursuit of the forming of light composite materials which may be substituted for metal without loss of strength, composites have been manufactured from silicon carbide fibers in a titanium matrix. Titanium diffuses into the given boundaries of the silicon carbide and degrades it. Yttria has been sandwiched between the titanium and silicon carbide, to provide a reaction skin of yttria which reduces the extent of diffusion. The present invention oxidizes the silicon carbide prior to applying the yttrium and thus further improves the resistance to diffusion.