热退火对KDP晶体微结构的影响  

The effect of thermal conditioning on microstructure of KDP crystals

作　　者：王圣来[1] 李丽霞[2] 胡小波[1] 高樟寿[1] 付有君[1] 孙洵[1] 李义平[1] 曾红[1] 

机构地区：[1]山东大学晶体材料国家重点实验室,山东济南250100 [2]山东大学环境科学与工程学院,山东济南250100

出　　处：《功能材料》2003年第3期331-333,共3页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)(59823003)

摘　　要：　用X射线衍射和Raman光谱技术研究了KDP晶体165℃退火前后微观结构的变化。实验发现退火24h可以减小晶体生长过程中带来的晶格的畸变,提高了晶体的完整性,缩小晶体中键长和键角的变化范围,使晶体内应力得以部分释放。对于快速生长的晶体,退火的效果更加显著。Xray diffraction and Raman spectrum techniques were used to study the microstructure of KDP crystals before and after thermal conditioning at 165℃. The FWHM of both spectra decreased obviously after conditioning for 24h, which suggested that the internal stress was released partly and the perfection of the crystal was improved. The results were consistent with the improvement of optical homogeneity of the crystals after conditioning. The experiments results also show that the perfection of rapidly grown crystal improved more greatly than those grown using traditional ways.

关 键 词：惯性约束聚变 KDP晶体 微结构 热退火 X射线衍射 RAMAN光谱 晶体生长 晶格畸变 

分 类 号：TL34[核科学技术—核技术及应用] O76[理学—晶体学]