Fabrication of Al_2O_3 based ceramic mold for ceramic processing

摘要

Fabrication of Al_2O_3 based ceramic mold was discussed in details. Powder additives(GiO_2 and MgO) and fine Al_2O_3 powders were used to decrease sintering temperature, special dewaxing method and care- Ful control on sintering were explored to prevent cracking and distortion of ceramic mold. Through those ef- Forts, qualified Al_2O_3 ceramic mold with complex inside shape was successfully fabricated, in addition, this Process can also be applied to the fabrication of the ceramic component with complex inside shape.