A comparative study of thermal stability of TNT, RDX, CL20 and ANTA explosives using UV 266 nm-time resolved photoacoustic pyrolysis technique

doi:10.1016/j.saa.2018.12.011

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	A comparative study of thermal stability of TNT, RDX, CL20 and ANTA explosives using UV 266 nm-time resolved photoacoustic pyrolysis technique
	K.S.Rao; D.Ganesh; F.Yehya; A.K.Chaudhary
	2019
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	211 页码:212-220
摘要	The paper reports the potential use of UV based pulsed photoacoustic spectroscopy to study the thermal stability of some well-known premier explosives such as TNT, RDX, CL20, and ANTA between 30 and 350 degrees C range. The thermal PA spectra of samples were recorded using fourth harmonic wavelength i.e. 266 nm of pulse duration 7 ns and repetition rate 10,Hz obtained from Q-switched Nd: YAG laser system. Under the influence of UV radiation, the explosive molecules in vapor phase follow the photodissodation process and converted into their byproducts such as NO, NO2 and N2O etc. due to pi* <- n transitions, which are responsible for the generation resultant PA signal at 266 nm wavelength. The results obtained from PA spectra as a function of temperature are cross verified with Thermo gravimetric-differential thermal analysis (TG-DTA) to ascertain the thermal stability of these samples. The comparative PA spectra of samples were analyzed and shown the behavior of acoustic modes with respect to incident laser energy, and data acquisition time. Finally, the thermal quality factor "Q" is measured to test the stability of reported explosives. (C) 2018 Elsevier B.V. All rights reserved.
关键词	UV 266 nm,Thermal stability,Photoacoustic,TNT,RDX,CL20,ANTA,enhanced raman-spectroscopy,no2,laser,nitromethane,Spectroscopy
DOI	10.1016/j.saa.2018.12.011
收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63099
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	K.S.Rao,D.Ganesh,F.Yehya,et al. A comparative study of thermal stability of TNT, RDX, CL20 and ANTA explosives using UV 266 nm-time resolved photoacoustic pyrolysis technique[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2019,211:212-220.
APA	K.S.Rao,D.Ganesh,F.Yehya,&A.K.Chaudhary.(2019).A comparative study of thermal stability of TNT, RDX, CL20 and ANTA explosives using UV 266 nm-time resolved photoacoustic pyrolysis technique.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,211,212-220.
MLA	K.S.Rao,et al."A comparative study of thermal stability of TNT, RDX, CL20 and ANTA explosives using UV 266 nm-time resolved photoacoustic pyrolysis technique".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 211(2019):212-220.

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