熔融法蓝宝石晶体退火特性研究  

Annealing properties of sapphire crystal with melting method

作　　者：王铎[1] 

机构地区：[1]福建江夏学院工商管理系,福建福州350007

出　　处：《长春工业大学学报》2011年第3期296-299,共4页Journal of Changchun University of Technology

摘　　要：研究了蓝宝石(-αAl2O3)晶体热退火前后光学均匀性的变化,发现适当温度下退火可以降低晶体的内应力,提高晶体质量,从而提高晶体的光学均匀性。结果表明,采用自制内绕式钼丝炉在1 890℃下退火即可有效消除部分内应力,晶体经任意切割均无出现炸裂现象。The optical homogeneity of the sapphire （α-Al2O3） crystals is studied before and after the annealing process. It is found that the internal stress of the crystal can be reduced at an appropriate annealing temperature so that both the crystal quality and the optical homogeneity are improved. The results show that part of the internal stress ean be eliminated at 1 890 ℃ with a self-made molybdenum wire-wound furnace for annealing, and no burst phenomenon appears when crystal is cut.

关 键 词：蓝宝石晶体 热处理 钼丝炉 内应力 

分 类 号：O782[理学—晶体学]