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轻气炮加载下蓝宝石的辐射光谱特性

Radiation Spectral Characteristics of Sapphire Under Light-Gas Gun Impact Loading

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摘要

冲击压缩过程中透明晶体的发光现象与材料的微观损伤及其结构变化密切相关,利用轻气炮加载结合多通道辐射高温计以及ICCD瞬态光谱测量系统,在400~800 nm的可见光波段获得了蓝宝石晶体的发光光谱;研究表明蓝宝石的冲击发光呈典型的热辐射特征,其热辐射温度与该压力下蓝宝石的熔化温度之间存在明显的关联性。最后,结合辐射温度和光谱分布形态研究了蓝宝石剪切带发光的机理。

Abstract

Transparent crystal luminescence at impact loading is closely related to its microscopic damage and structure change. The multichannel radiation pyrometer with light-gas gun and spontaneous spectroscopic system are combined to study the light emission of shocked sapphire. The light spectrum of sapphire range is obtained in 400-800 nm wavelength. The spectral distribution exhibits typical thermal radiation characteristics. The radiation temperature is in agreement with the corresponding melting temperature. The mechanism of the luminescence of the sapphire shear band is studied in combination with the radiation temperature and the spectral distribution.

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中图分类号:O433

DOI:10.3788/aos201838.0530002

所属栏目:光谱学

基金项目:陕西省教育厅科研项目(17JK0366)、陕西省科技厅重点研发计划(2017ZDXM-GY-114)、西安市科技局科研项目(RC038XAGY010)

收稿日期:2017-10-26

修改稿日期:2017-12-07

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作者单位    点击查看

张宁超:西安工业大学电子信息工程学院, 陕西 西安 710021
任娟:西安工业大学理学院, 陕西 西安 710021
王鹏:西安工业大学电子信息工程学院, 陕西 西安 710021
刘福生:西南交通大学材料先进技术教育部重点实验室, 四川 成都 610031

联系人作者:张宁超(ningchaozhnag@163.com)

备注:张宁超(1986-),男,博士,讲师,主要从事冲击波光电测试及高压物性方面的研究。E-mail: ningchaozhnag@163.com

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引用该论文

Zhang Ningchao,Ren Juan,Wang Peng,Liu Fusheng. Radiation Spectral Characteristics of Sapphire Under Light-Gas Gun Impact Loading[J]. Acta Optica Sinica, 2018, 38(5): 0530002

张宁超,任娟,王鹏,刘福生. 轻气炮加载下蓝宝石的辐射光谱特性[J]. 光学学报, 2018, 38(5): 0530002

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