Measurement of transient Raman spectrum on gas-gun loading platform and its application in liquid silane

Combining a low temperature liquidizing 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 s...

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Published inChinese physics B Vol. 26; no. 10; pp. 189 - 193
Main Author 汪贻高 刘福生 刘其军 王文鹏 张明建 习锋 蔡灵仓 张宁超
Format Journal Article
LanguageEnglish
Published 01.10.2017
Subjects
二级轻气炮
光谱测量
平台
应用
拉曼光谱
液体
瞬态
硅烷
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Summary:Combining a low temperature liquidizing 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.
Bibliography:Combining a low temperature liquidizing 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.
fluid silane, Raman spectra, shock compression, equation of state
Yi-Gao Wang1,2, Fu-Sheng Liu1,2, Qi-Jun Liu1,2, Wen-Peng Wang1,2, Ming-Jian Zhang1,2, Feng Xi3, Ling-Cang Cai3, Ning-Chao Zhang4（ 1 Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China; 2 Sichuan Provincial Key Laboratory （for Universities） of High Pressure Science and Technology, Southwest Jiaotong University, Chengdu 610031, China ; 3Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China ;4 College of Electronics and Information Engineering, Xi＇an Technological University, Xi＇an 710032, China）
11-5639/O4
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/26/10/103301