Hugoniot equation-of-state and structure of laser-shocked polyimide C22H10N2O5
Hugoniot equation-of-state and structure of laser-shocked polyimide C22H10N2O5
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激光冲击聚酰亚胺C22H10N2O5的Hugoniot状态方程和结构
DOI：
10.1103/physrevb.105.054103
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发表时间：
2022
影响因子：
3.7
通讯作者：
and R. Kodama
中科院分区：
文献类型：
--
作者：
K. Katagiri;N. Ozaki;D. Murayama;K. Nonaka;Y. Hironaka;Y. Inubushi;K. Miyanishi;H. Nakamura;T. Okuchi;T. Sano;Y. Seto;K. Shigemori;K. Sueda;T. Togashi;Y. Umeda;M. Yabashi;T. Yabuuchi;and R. Kodama
测量了激光冲击聚酰亚胺的Hugoniot状态方程、Grüneisen参数和结构。在80-600 GPa的压力范围内测量聚酰亚胺Hugoniots，发现与以前报道的低于60 GPa的数据的外推一致。用原位射线衍射技术测量了聚酰亚胺冲击压缩到28-163 GPa的结构，结果表明，聚酰亚胺冲击波沿着Hugoniot的熔化压力低于32（±3）GPa，表明在以前的气炮实验中观察到的聚酰亚胺Hugoniot在26 GPa时的不连续体积变化是熔化的开始。以前的气枪结果和本激光实验之间的熔融压力的一致性表明，聚酰亚胺的冲击熔融过程是独立的压缩的持续时间，揭示其快速熔融动力学。
The Hugoniot equation-of-state, Grüneisen parameter, and structure of laser-shocked polyimide were measured. The polyimide Hugoniots were measured in the pressure range 80–600 GPa and found to be consistent with the extrapolation of previously reported data below 60 GPa. The structural measurements of polyimide shock compressed to pressures of 28–163 GPa were performed using thein situx-ray diffraction technique, and the results show that the melting pressure of polyimide along its Hugoniot is below 32(±3) GPa, indicating that the discontinuous volume change of the polyimide Hugoniot at ∼26 GPa observed in previous gas-gun experiments denotes the onset of melting. The consistency of the melting pressure between the previous gas-gun results and the present laser experiments suggests that the shock-melting process of polyimide is independent of the duration of the compression, revealing its rapid melting kinetics.