物理学报2012，Vol.61Issue(15)：414-419,6.
〈100〉LiF的低压冲击响应和1550 nm波长下的窗口速度修正
Elastic-plastic response of shocked（100） LiF and its window correction at 1550 nm wavelength
摘要
Abstract
By using plate impact and laser interferometry technology,careful experiments and theoretical analysis for（100） LiF are carried out for its dynamic mechanical response and optical characteristics under shock pressures up to 40 GPa.The accurate shock Hugoniot relation and velocity correction at 1550 nm wavelength are then obtained.Moreover,the direct wave-profile measurments show that LiF keeps an obvious elastic-plastic response within 20.3 GPa,and the estimated lower limit pressure for single-wave shock response is about 22—23 GPa.The strength influence of LiF window on the dynamic behavior of the sample should be taken into account in precise experiments with shock pressure lower than this range.The results above establish foundations for the design and data post-processing of shock experiments in which LiF is used as an optical window for the dynamic material properties such as elasto-plasticity,phase transition and melting.关键词
LiF/弹塑性/冲击雨贡纽/速度修正Key words
LiF/elastic-plastic response/shock Hugoniot/velocity correction分类
信息技术与安全科学引用本文复制引用
李雪梅,俞宇颖,张林,李英华,叶素华,翁继东..〈100〉LiF的低压冲击响应和1550 nm波长下的窗口速度修正[J].物理学报,2012,61(15):414-419,6.基金项目
中国工程物理研究院科学技术发展基金 （）
冲击波物理与爆轰物理国防科技重点实验室基金 （）
国家自然科学基金（批准号：11172281）资助的课题 （）
