冲击加载下透明晶体发光的测量技术研究  

Measurement technology of emission from transparent crystal under shock loading

作　　者：张宁超 孙晋坤 巩兆伟 Zhang Ningehao;Sun Jinkun;Gong Zhaowei(College of Electronics and Information Engineering, Xi＇an Technological University, Xi＇an 710021, China)

机构地区：[1]西安工业大学电子信息工程学院

出　　处：《国外电子测量技术》2018年第5期14-18,共5页Foreign Electronic Measurement Technology

基　　金：西安市科技局科研(2017075CG-XAGY010);陕西省教育厅科研(17JK0366);陕西省科技厅重点研发计划(2017ZDXM-GY-114)资助项目

摘　　要：研究冲击加载下测量透明晶体的发光现象,可以获得压缩过程中晶体的辐射特性、透明度变化等物理性质,从而反映材料的损伤破坏行为以及高压结构和相变过程。以冲击高压实验中常用透明晶体窗口材料蓝宝石为例,在自主搭建的冲击光谱动态测试平台上,利用二级轻气炮加载实验平台,通过测量技术的改进,结合多通道辐射高温计研究了蓝宝石晶体的辐射发光效应。在41GPa冲击压力下获得了蓝宝石真实有效的发光辐射结果,证实了辐射强度随时间线性上升是体积累积的发光过程。The change of physical properties from crystal radiation and transparency can be obtained under shock loading.The result can explain the damage behaviour of materials and high pressure phase transition process.The radiation pyrometer and two stage light gas gun facility are combined together to study the light emission of sapphire single crystal according to the improvement of measurement technology.The light emitting radiation result of sapphire was obtained at41 GPa.The radiance intensity changes to be linear with the increase of time revealed it was a volume effect.

关 键 词：透明晶体 蓝宝石 发光 测量技术 

分 类 号：O734[理学—晶体学]