【摘 要】
：
Combining a low temperature iiquidizing system with a transient Raman spectroscopy,a new experimental technique is established for the first time on a two-stage
【机 构】
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Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China,School of Physi
论文部分内容阅读
Combining a low temperature iiquidizing system with a transient Raman spectroscopy,a new experimental technique is established for the first time on a two-stage light-gas gun,and it is employed to study shock-compressed fluid silane.With this experimental technique,we first obtain a Raman peak shift relating to the Si-H stretching vibration mode of molecular liquid silane under shock loading conditions.The Raman peak of 2184 cm-1 at an initial state of 0 GPa and 85 K moves to 2223.4 cm-1 at a shocked state of 10.5 GPa and 950 K,and its full width of half maximum broadens from 33 cm-1 to 118 cm-1.The shocked temperature,calculated by the thermodynamic equation of state,is well consistent with that estimated by the Doppler broadening function.
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