磁驱动平面准等熵加载装置、实验技术及应用研究新进展  

Recent progress on the experimental facilities,techniques and applications of magnetically driven quasi-isentropic compression

作　　者：王桂吉[1] 罗斌强[1] 陈学秒[1] 张旭平[1] 种涛[1] 蔡进涛[1] 谭福利[1] 孙承纬[1] WANG Guiji;LUO Binqiang;CHEN Xuemiao;ZHANG Xuping;CHONG Tao;CAI Jintao;TAN Fuli;SUN Chengwei(Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621999,Sichuan,China)

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621999

出　　处：《爆炸与冲击》2021年第12期62-83,共22页Explosion and Shock Waves

基　　金：国家自然科学基金(10927201,11327803,11972031,11176002,10472108,11272295,11002130)。

摘　　要：利用脉冲大电流装置产生随时间变化平滑上升的磁压力,实现对平面、柱面等不同结构样品的磁驱动准等熵(斜波)压缩,为极端条件下材料动力学研究提供了一种偏离Hugoniot状态热力学路径的加载手段。本文从磁驱动准等熵加载装置、实验技术、数据处理方法等方面综述了磁驱动准等熵加载技术研究近十年的新进展,评述了利用磁驱动准等熵加载技术和方法开展极端条件下材料高压状态方程、高压强度与本构关系、相变与相变动力学等方面研究的进展情况,展望了磁驱动准等熵加载技术发展及其在材料动力学、武器物理和高能量密度物理等方面的应用前景。A pulsed high current device is used to generate a smooth rising magnetic pressure with time for realizing quasi-isentropic(ramp wave)compression of samples with planar or cylindrical configuration,which provides a loading method of off-Hugoniot thermodynamic path for material dynamics under extreme conditions.In this paper,the progress of magnetically driven quasi-isentropic loading facilities,experimental techniques and data processing methods in recent ten years is reviewed,and the applications of magnetically driven quasi-isentropic compression techniques are introduced for material dynamics,such as high-pressure equation of state,high-pressure strength and constitutive relationship,phase transformation and phase transformation kinetics under extreme conditions.Finally,the development of magnetically-driven quasi-isentropic compression techniques and its applications in material dynamics,weapon physics and high energy density physics are prospected.

关 键 词：大电流脉冲功率装置 磁压力 准等熵压缩 数据处理方法 材料动态性能 

分 类 号：O383[理学—流体力学]