物理学报Issue(3)：257-261,5.DOI:10.7498/aps.62.036401
金属Bi的卸载熔化实验研究
Release melting of bismuth∗
摘要
Abstract
Reverse-impact experiments are performed on bismuth (Bi) to probe into the release melting from shock pressures in a pressure range of 11–16 GPa. A displacement interferometer system for any reflector (DISAR) is employed to measure the particle velocity history at the impact interface of LiF window with Bi flyer. The obtained experimental data, together with the results from characteristic formulations and one-dimensional hydrodynamic simulations, indicate that bismuth is converted into the body-center-cubic phase under shock loading, and then melted with the releasing of state from the initial shock (Hugoniot). The inflexion on the release wave profiles is attributed to the release melting. The proposed method and extracted results are of importance for developing the phase-change diagnostics and understanding phase-transition behavior of Bi and its analogues.关键词
冲击相变/反向碰撞法/卸载熔化/铋Key words
shock-induced phase transition/reverse-impact geometry/release melting/bismuth引用本文复制引用
谭叶,俞宇颖,戴诚达,于继东,王青松,谭华..金属Bi的卸载熔化实验研究[J].物理学报,2013,(3):257-261,5.基金项目
国家高技术研究发展计划(批准号:2008AA031402)、国家自然科学基金(批准号:51202148)和上海市纳米科技专项基金(批准号:1052nm07200)资助的课题 （批准号:2008AA031402）
