CrB.sub.2 -NbB.sub.2 /Al.sub.2 0.sub.3 and CrB.sub.2 -NbB.sub.2 /SiC ceramic composite materials

摘要

A composite with a reinforcing material that is Al.sub.2 O.sub. 3, SiC, or xtures thereof in a matrix that is a ceramic material based on a solid solution of CrB.sub.2 and NbB.sub.2.