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Distribution and formation of particles produced by laser ablation of cyclotetramethylene tetranitramine

Published online by Cambridge University Press:  13 June 2017

W. Zhang ,
R. Shen ,
Y. Ye ,
L. Wu ,
P. Zhu  and
Y. Hu
W. Zhang*
Affiliation:
Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China
R. Shen
Affiliation:
Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China
Y. Ye
Affiliation:
Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China
L. Wu
Affiliation:
Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China
P. Zhu
Affiliation:
Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China
Y. Hu
Affiliation:
Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China
*
Address correspondence and reprint requests to: W. Zhang, Department of Applied Chemistry, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, People's Republic of China. E-mail: wzhang@njust.edu.cn
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Abstract

An experimental investigation into laser ablation of secondary explosives, cyclotetramethylene tetranitramine (HMX), has been carried out by using a solid-state laser at the wavelength of 1064 nm. The ion particles of decomposition were detected by using a time-of-flight mass spectrometer. Possible attributions of both negative ions and positive ions were obtained. Some obvious peaks were found at m/z = 18, 28, 46, 60, and 106, corresponding to H2O, CO/N2/H2CN, NO2, CH2NO2/N2O2, and N(NO2)2/CH2(NO2)2, respectively. According to the distribution of the particles, three possible pathways were proposed to explain the process of particles. The results may shed some light on the possible decomposition mechanism of HMX under laser initiation.

Keywords

Cyclotetramethylene tetranitramineDecomposition mechanismLaser initiationParticles distribution
Type
Research Article
Information
Laser and Particle Beams , Volume 35 , Issue 3 , September 2017 , pp. 391 - 396
Copyright
Copyright © Cambridge University Press 2017 

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