Ceramic component

Abstract

A ceramic component includes a porous structure that has fibers and a coating on the fibers. A ceramic material is within pores of the porous structure. A glass or glass/ceramic material is within pores of the porous structure, and one of the ceramic material or the glass or glass/ceramic material is within internal residual porosity of the other of the ceramic material or the glass or glass/ceramic material.

What is claimed is: 
     
         1 . A ceramic component comprising:
 a porous structure including fibers and a coating on the fibers;   a ceramic material within pores of the porous structure; and   a glass or glass/ceramic material within pores of the porous structure, wherein one of the ceramic material or the glass or glass/ceramic material is within internal residual porosity of the other of the ceramic material or the glass or glass/ceramic material.   
     
     
         2 . The ceramic material as recited in  claim 1 , wherein the fibers are selected from a group consisting of ceramic fibers, carbon fibers, and combinations thereof. 
     
     
         3 . The ceramic material as recited in  claim 1 , wherein the coating includes one or more layers of carbon, boron nitride, boron carbide, silicon nitride, silicon carbide, and aluminosilicate. 
     
     
         4 . The ceramic material as recited in  claim 1 , wherein the coating is a monolayer coating. 
     
     
         5 . The ceramic material as recited in  claim 1 , wherein the coating is a multilayer coating. 
     
     
         6 . The ceramic material as recited in  claim 1 , including the glass material, and the glass material is a silicate-based glass that includes at least one of boron, barium, magnesium, lithium, and aluminum. 
     
     
         7 . The ceramic material as recited in  claim 6 , wherein the glass material includes a silicon-containing filler. 
     
     
         8 . The ceramic component as recited in  claim 1 , wherein the ceramic material is selected from a group consisting of silicon carbide, silicon carbonitride, silicon nitride, silicon oxycarbide, alumina, and combinations thereof. 
     
     
         9 . The ceramic component as recited in  claim 8 , wherein the ceramic material includes a filler selected from the group consisting of silicon carbide, aluminum nitride, boron carbide, refractory materials, boron nitride, silicon nitride, diamond and combinations thereof. 
     
     
         10 . The ceramic component as recited in  claim 1 , wherein the pores are interconnected. 
     
     
         11 . The ceramic component as recited in  claim 1 , having a final composition, by volume percentage, of:
 20-70 of the porous structure,   1-12 of the coating on the fibers,   1-75 of the ceramic material, and   a balance of the glass or glass/ceramic material and residual void volume, wherein the residual void volume is less than 5 volume percent.   
     
     
         12 . The ceramic component as recited in  claim 11 , having a final composition, by volume percentage, of:
 30-50 of the porous structure,   2-5 of the coating on the fibers,   25-65 of the ceramic material, and   a balance of the glass or glass/ceramic material and the residual void volume