摘要
通过X射线衍射(XRD)分析比较了常规加热和微波加热促使-γA l2O3→-αA l2O3的相变工艺条件,以及微波加热对-γA l2O3→-αA l2O3相变过程的促进作用,同时研究了掺杂ZrO2对相变的影响.结果表明:与常规加热相比,微波加热能使-γA l2O3在更低温度下以更快速率向-αA l2O3相变;ZrO2的存在对该相变起阻碍作用.
The processing conditions for the phase transformation from γ-Al2O3 to α-Al2O3 caused by the common heating and microwave heating methods were analyzed by means of X-ray diffraction, with an enhancement of phase transformation caused by microwave heating being revealed. The effect of doped ZrO2 on the phase transformation was also studied. It is found that, compared with the common heating, microwave heating makes the phase transformation from γ-Al2O3 to α-Al2O3 happen at a lower temperature with higher speed, and that ZrO2 hinders the phase transformation caused by microwave heating.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第5期90-93,共4页
Journal of South China University of Technology(Natural Science Edition)
关键词
微波
相变
Γ-氧化铝
Α-氧化铝
氧化锆
microwave
phase transformation
γ-Al2O3
α-Al2O3
zirconium oxide
