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Raman Spectra of Liquid Nitromethane under Singly Shocked Conditions
Ya-ping Wang,Fu-sheng Liu,Qi-jun Liu,Ning-chao Zhan
Author NameAffiliationE-mail
Ya-ping Wang School of Physical Science and Technology, Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Southwest Jiaotong University, Chengdu 610031, China  
Fu-sheng Liu School of Physical Science and Technology, Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Southwest Jiaotong University, Chengdu 610031, China fusheng_l@163.com 
Qi-jun Liu School of Physical Science and Technology, Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Southwest Jiaotong University, Chengdu 610031, China  
Ning-chao Zhan School of Physical Science and Technology, Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Southwest Jiaotong University, Chengdu 610031, China  
Abstract:
Raman spectra of liquid nitromethane were measured in single-shock experiments using transient Raman scattering system with high sensitivity. The measurement system was combined with a two-stage light gas gun to interrogate the vibrational mode-dependent behaviors of shock-compressed nitromethane molecules. Up to 12 GPa, all Raman peaks were able to be clearly detected, and showed the shock-induced shifting and broadening, but no signs of chemical changes occurred in the sample. Thus, it is concluded that chemical reactions could not be initiated in singly-shocked nitromethane below 12 GPa.
Key words:  Raman spectra  Shock wave  Energetic liquid explosives  Nitromethane
FundProject:This work was supported by the National Natu-ral Science Foundation of China (No.11574254 and No.11072225), the Fundamental Research Fund for the Central Universities of China (No.2682014ZT31), and the National Basic Research Program of China (No.2011CB808201).
单次冲击压缩下液态硝基甲烷的拉曼光谱
王亚平,刘福生,刘其军,张宁超
摘要:
在单次冲击压缩实验中,运用高敏度瞬态拉曼光谱技术观测了液态硝基甲烷分子的拉曼光谱. 将该拉曼测量技术与二级轻气炮的实验平台结合起来,获得硝基甲烷分子振动模式的高压动态行为. 硝基甲烷被12 GPa压力冲击时的拉曼光谱可清晰探测,其拉曼振动峰仅仅发生了峰位蓝移和峰宽展宽的变化,未显示出化学变化产生的迹象.
关键词:  拉曼光谱  冲击  含能材料  硝基甲烷
DOI:10.1063/1674-0068/29/cjcp1503037
分类号: