Coarse raw materials and fine SiC powders are formed, under the protection of high temperature and certain pressure,they are recrystallized by vacuum sintering,by evaporation of fine SiC powders and coagulation in coarse SiC particles.,then we get recrystallized silicon carbide.Because of its high purity (SIC > 99.5%) and no intermediate bonding phase, it has excellent high temperature mechanical properties, and the maximum operating temperature can reach 1700 C. recrystallized silicon carbide has good high temperature resistance in ceramic products, and increases with the increase of temperature. It does not shrink basically. At the same time, recrystallized silicon carbide has good thermal conductivity,thermal shock resistance, oxidation resistance and acid-base corrosion resistance. Therefore,recrystallized sic can be made into various geometric shapes according to different uses, especially in high temperature conditions.
recrystallized sic is suitable for use as kiln furniture and kiln accessories in ceramics, refractories, electric ceramics, electronics and other industries. Its remarkable characteristics are its dimensional stability and high temperature bearing capacity, and good energy-saving effect. recrystallized sic can be made into rods, hollow beams, shed boards and special-shaped parts. Halsic r also has good anti-oxidation and anti-erosion ability, high hardness and wear resistance. Halsic r can be used in metallurgy, machinery, chemical industry and military industry.
