XIE Changping , ZHOU Cailou , WANG Yuan , WANG Chen

(School of Materials, Tianjin Institute of Urban Construction, Tianjin 300384)

Abstract: Ceramic reflectors for laser pump cavity were prepared with 99% alumina by low pressure injection molding. The technical parameters for low temperature degreasing and firing process were studied and a proper degreasing schedule was presented. The results show that when the firing temperature is 1140℃, the sample has no defect, and its shrinkage, water absorption and flexural strength can meet the requirement.

Key words: low pressure injection molding; degreasing; firing