Bridgman法生长的PbWO_4晶体的腐蚀观察  

Observation of the Etching Morphology of PbWO_4 Crystal Grown by Bridgman Method

作　　者：宫波[1] 沈定中[1] 张海斌[1] 史宏声[1] 任国浩[1] 殷之文[1] 

机构地区：[1]中国科学院上海硅酸盐研究所,上海200050

出　　处：《人工晶体学报》2002年第4期376-379,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金 (No .5 973 2 0 40 )重点资助项目

摘　　要：利用光学显微镜观察了Bridgman法生长的PbWO4晶体 (0 0 1)晶面的腐蚀形貌 ,讨论了位错蚀坑的形态特征 ,分布规律以及与晶体结晶习性的关系 ,同时还观察了亚晶界的形态 。Etching morphology of (001) faces of PbWO 4 crystal grown by Bridgman method was observed by using optical microscope.Morphological features and distribution regularity of dislocations were discussed.The relation between features of etch pit and crystallization habit of crystal was revealed.Respectively,the formations of dislocation and sub grain boundary were also studied in this paper.

关 键 词：BRIDGMAN法 晶体生长 PBWO4晶体 腐蚀 位错 亚晶界 

分 类 号：O782.5[理学—晶体学]