Prediction of chemical bond breaking in insensitive high-energy energetic materials at high temperature and pressure

被引:2
|
作者
Li, Wen-Guang [1 ]
Hong, Dan [1 ,2 ]
Li, Xing-Han [1 ]
Chang, Xiang-Hui [1 ]
Liu, Zheng-Tang [3 ]
Liu, Qi-Jun [1 ]
机构
[1] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Bond & Band Engn Grp, Chengdu 610031, Peoples R China
[2] Chengdu Univ Tradit Chinese Med, Coll Med Informat Engn, Chengdu, Peoples R China
[3] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
关键词
MOLECULAR-DYNAMICS; THERMAL-DECOMPOSITION; AB-INITIO; DENSITY; 1,3,5-TRIAMINO-2,4,6-TRINITROBENZENE; 1,1-DIAMINO-2,2-DINITROETHYLENE; CRYSTAL; MECHANISM; RANGE; FOX-7;
D O I
10.1063/5.0148260
中图分类号
O59 [应用物理学];
学科分类号
摘要
The bond breaking of energetic materials under the action of temperature and pressure has always been a key step in understanding the explosive mechanism of energetic materials. In this work, we use the mean square shift of atoms and the theoretical bond breaking position of chemical bonds to give the bond breaking temperature of each chemical bond of insensitive high-energy energetic materials, 1,1-diamino-2,2-dinitroethylene (a-FOX-7) and 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), at 0 and 30 GPa. The calculation results show that the bond breaking sequence of a-FOX-7 and TATB in the selected pressure range is N-H, N-O, C-NO2, and C-NH2. At the same time, the difference in the sensitivity between a-FOX-7 and TATB was discussed through the analysis of partial chemical bond breaking temperature.
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页数:8
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