Cushman, Darby & Cushman
Method of manufacturing a hollow silicon carbide fiber reinforced silicon carbide matrix component
 Carbon coated carbide fibers are arranged in a predetermined pattern and shape around a silicon carbide coated graphite insert. Silicon carbide is infiltrated into the silicon carbide fibers to produce a SiC/SiC composite component. The SiC/SiC composite component is coated with glass and is then heated in air to burn out the graphite insert to form a hollow glass coated SiC/SiC composite component. The method is suitable for producing hollow SiC/SiC composite turbine blades or vanes. 
Rolls-Royce plc
C C C C C C C C C C Y C C C C
C04B C04B C04B C23C C04B C23C C04B C04B C04B C04B Y10S C04B C04B C04B C23C
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Stephen
Mason