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8222112 
Journal Article 
非晶态Al/Ti球形金属粒子的制备及其对高能炸药热分解的催化性能 
Song, X; Wang, Y; Liu, S; Cheng, Z; Li, F 
2021 
1 
Xiyou Jinshu Cailiao Yu Gongcheng / Rare Metal Materials and Engineering
ISSN: 1002-185X 
Science Press 
50 
4 
1210-1217 
English 
By controlling the milling time and the mass proportion of Al to Ti, the metallic amorphous Al/Ti spherical particles (Al/Ti alloy) with a mean size of 3.76 μm were fabricated by mechanical milling method. The catalysis effects of the as-prepared Al/Ti alloy on the thermolysis of five explosives, namely hexanitrostilbene (HNS), 2, 6-diamino-3, 5-dinitropyrazine-1-oxide (LLM-105), cyclotrimethyltrinitroamine (RDX), cyclotetramethylenetetranilamine (HMX), and hexanitrohexaazaisowurtzitane (CL-20) were probed by thermal analysis. Results show that for HNS doped with 5wt% Al/Ti particles, the decomposition peak temperature (Tp) decreases by 6.9, 7.2, 4.8 and 5.2℃ at different heating rates compared with raw HNS. Similarly, for the rest four explosives, the Tp value of the doped explosives also decreases compared with the respective raw explosive. All thermodynamic parameters of the explosives were calculated. It is indicated that the active energy (EK) of the doped explosives is declined by 52.378 kJ•mol-1 (HNS), 41.664 kJ•mol-1, (LLM-105), 8.6 kJ•mol-1 (RDX), 48.4 kJ•mol-1 (HMX), and 46.7 kJ•mol-1 (CL-20). It is ascertained that doping spherical amorphous Al/Ti alloy can promote the thermal decomposition of explosives. Copyright © 2021, Northwest Institute for Nonferrous Metal Research. Published by Science Press. All rights reserved. 
Al/Ti alloy; Ball mill; Catalysis; High explosive; Thermal decomposition