Working condition of metallurgy processing is generally in high temperature and high corrosion. Advanced ceramic materials are characterized by high melting point, high corrosion resistance and lower thermal conductivity than metal materials, so they play good advantage in the metallurgy production process. Ceramics can not only improve the lifetime of metallurgical equipment, but also reduce the loss of heat energy and save big costs. There are many ceramic components are utlized in metallurgy, such as ceramic crucible (Alumina, MG-PSz Zirconia, Silicon Nitride, Aluminum Nitride), ceramic mould, ceramic filter, ceramic roller (Al2O2) and ceramic guide wheel, etc