高温烧结α—Al_2O_3晶体演化的研究

STUDY ON CRYSTAL EVOLUTION OF HIGH TEMPERATURE SINTERED α—Al_2O_3

用红外光谱法研究了高温烧结α—Al_2O_3的晶体演化过程,依其晶体结构的差异,将传统概念的α—Al_2O_3分为α_1—Al_2O_3、α_2—Al_2O_3、α_3—Al_2O_3、α_4—Al_2O_34种,还研究了烧结温度、烧结时间、物料粒度、添加剂等因素对α—Al_2O_3晶体演化过程的影响。

This paper elaboreted the study process of high temperature sintered α—Al_2O_3 crystal evolution by means of infrared spectrophotommeter. The traditional conceptive α_4—Al_2O_3 is classified as α_1—Al_2O_3, α_2—Al_2O_3, α_3—Al_2O_3, α_4—Al_2O_3 according to the differences of the crystal structure. The paper also studied the effects of some factors, such as sinter temperature, sinter time, particle size of the materials, adding agent et al, on the process of α—Al_2O_3 crystal evolution.