Patent ID: 7595120

Claim:
A ceramic composition, comprising: an organic binder, a first ceramic material, wherein the first ceramic material is silica powder, glass powder, glaze powder, copper oxide, lead oxide, hafnium oxide, boron oxide, or a mixture thereof, and a second ceramic material in the form of nano-, submicron-, or micron-sized particles, wherein the second ceramic material is aluminum oxide, titanium oxide, zirconium oxide, aluminum nitride, titanium nitride, zirconium nitride, or a mixture thereof, a third ceramic material, wherein the third ceramic material has a higher melting point than the first ceramic material, and, when the first ceramic material melts into a liquid, the third ceramic material partially or completely dissolves in the liquid, wherein the first ceramic material has a lower melting point than the second ceramic material, and, when the first ceramic material melts into a liquid and the second ceramic material remains particulate, the second ceramic material floats at the top of the liquid.