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利用平板撞击和激光干涉测试技术对〈100〉LiF在40GPa内的冲击力学和光学特性进行了精密实验测量和理论分析.获得了该压力范围内LiF的冲击雨贡纽关系和1550 nm波长下的窗口速度修正,为相关加窗激光干涉测速实验的数据分析提供了直接依据.LiF在20.3 GPa内均表现出弹性-塑性双波特性,预计其单波响应冲击压力下限约为22—23 GPa;低于此压力时,以LiF为窗口的精密剖面测量实验需考虑其强度影响.
The impact mechanics and optical properties of <100> LiF in 40GPa were experimentally measured and theoretically analyzed by using the plate impact and laser interferometry techniques. The window speed correction provides a direct basis for the data analysis of the related windowed laser interferometric velocimetry experiments.LiF exhibits elastic-plastic dual-wave properties within 20.3 GPa and the single-wave response impulse pressure is expected to have a lower limit of about 22-23 GPa ; Below this pressure, to LiF as the window of the precision profile measurement experiment to consider the impact of its strength.