Ceramic composite material

Abstract

A ceramic composite material is comprised of a fabric of fibers of an inorganic substance; and a matrix for combining the fibers. The matrix consists essentially of a ceramic. The matrix is formed by burying the fabric in a mixture of a powder of carbon, a powder of silicon and a medium including an organic solvent, producing an oscillation in the mixture to impregnate the fabric with the mixture, and calcining the fabric impregnated with the mixture.

1 . A ceramic composite material comprising:
 a fabric of fibers consisting essentially of an inorganic substance; and   a matrix for combining the fibers, the matrix consisting essentially of a ceramic formed by burying the fabric in a mixture consisting essentially of a powder of carbon, a powder of silicon and a medium including an organic solvent, producing an oscillation in the mixture to impregnate the fabric with the mixture, and calcining the fabric impregnated with the mixture.   
     
     
         2 . The ceramic composite material of  claim 1 , wherein the medium includes a polymer ingredient. 
     
     
         3 . The ceramic composite material of  claim 2 , wherein the medium is prepared so as to have a viscosity of from 0.8 mPaS to 4 mPaS. 
     
     
         4 . The ceramic composite material of  claim 1 , wherein the oscillation is produced by applying an ultrasolic oscillation. 
     
     
         5 . The ceramic composite material of  claim 1 , wherein the powder of carbon has a grain size of from 1μm to 20 μm and the powder of silicon has a grain size of from 1 μm to 75 μm. 
     
     
         6 . The ceramic composite material of  claim 1 , wherein the powder of carbon has a specific surface of 14.2 m 2 /g or less. 
     
     
         7 . The ceramic composite material of  claim 1 , wherein the inorganic substance consists essentially of silicon carbide. 
     
     
         8 . The ceramic composite material of  claim 1 , wherein the matrix includes silicon carbide. 
     
     
         9 . The ceramic composite material of  claim 1 , wherein the fabric with the matrix has an impregnation ratio of from 20% to 100%. 
     
     
         10 . The ceramic composite material of  claim 1 , further comprising:
 an interface layer covering the fibers.   
     
     
         11 . The ceramic composite material of  claim 10 , wherein the interface layer is formed by a CVD method preliminary to forming the matrix. 
     
     
         12 . The ceramic composite material of  claim 1 , further comprising:
 a second ceramic phase consisting essentially of SiC and partially combining the fibers.   
     
     
         13 . The ceramic composite material of  claim 12 , wherein the second ceramic phase is formed by a CVI method preliminary to forming the matrix. 
     
     
         14 - 23 . (canceled)