-1(HNS)、41.6kJ.mol-1(LLM-105)、8.6kJ.mol-1(RDX)、48.4kJ.mol-1(HMX)和46.7 kJ.mol-1(CL-20)。這說(shuō)明Al/Ti非晶態(tài)合金粉對(duì)高能炸藥的熱分解過(guò)程有明顯的催化作用。"/>

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非晶態(tài)Al/Ti球形金屬粒子的制備及其對(duì)高能炸藥熱分解的催化性能
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作者單位:

1.中北大學(xué) 環(huán)境與安全工程學(xué)院;2.中北大學(xué) 材料科學(xué)與工程學(xué)院;3.淮陰師范學(xué)院 化學(xué)化工學(xué)院;4.南京理工大學(xué) 化工學(xué)院

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the National Natural Science Foundation of China (Grant No.: 51676082).


Metallic amorphous Al/Ti spherical particles and its catalysis effects on the thermal decomposition of high explosives
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Affiliation:

1.School of Environment and Safety Engineering,North University of China;2.School of Materials Science and Engineering,North University of China;3.School of Chemistry Chemical Engineering,Huaiyin Normal University

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    摘要:

    通過(guò)控制球磨時(shí)間及Al和Ti的質(zhì)量比,用機(jī)械球磨法制備了一種無(wú)定型的球形Al/Ti合金粉,其平均粒徑為3.76um。研究了這種合金粉對(duì)HNS、LLM-105、RDX、HMX和CL-20五種高能炸藥熱分解的催化作用。結(jié)果表明,與原料HNS比較,添加了5wt.%Al/Ti非晶態(tài)合金粉的HNS在不同的升溫速率下其熱分解峰溫分別降低了6.9°C、7.2°C、4.8°C和5.2°C。同樣,對(duì)于其它四種炸藥,添加Al/Ti后炸藥的熱分解溫度較原料都明顯降低。同時(shí),計(jì)算了所有炸藥樣品熱分解過(guò)程的熱動(dòng)力學(xué)參數(shù)。結(jié)果表明,相對(duì)于原料炸藥,添加了Al/Ti非晶態(tài)合金粉的炸藥其熱分解活化能分別降低了52.4kJ.mol-1(HNS)、41.6kJ.mol-1(LLM-105)、8.6kJ.mol-1(RDX)、48.4kJ.mol-1(HMX)和46.7 kJ.mol-1(CL-20)。這說(shuō)明Al/Ti非晶態(tài)合金粉對(duì)高能炸藥的熱分解過(guò)程有明顯的催化作用。

    Abstract:

    By controlling the milling time and the mass proportion of Al to Ti, the metallic amorphous Al/Ti spherical particles (Al/Ti alloy) with mean size of 3.76um were fabricated by mechanical milling method. The catalysis effects of the as prepared Al/Ti alloy on the thermolysis of five explosives, i.e. Hexanitrostilbene (HNS), 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105), Cyclotrimethyltrinitroamine (RDX), Cyclotetramethylenetetranilamine (HMX), and Hexanitrohexaazaisowurtzitane (CL-20) were probed using thermal analysis. For HNS, the decomposition peak temperature (Tp) of the doped HNS with the alloy decreased by 6.9°C, 7.2°C, 4.8°C and 5.2°C respectively at different heating rates compared with raw HNS. Similarly, for the rest four explosives, the Tp value of the doped explosives with the alloy mainly decreased compared with the respective raw explosive. All thermodynamic parameters of the explosives were calculated. It indicated that the active energy (EK) of the doped explosives with alloy markedly declined by 52.4 kJ.mol-1 (HNS), 41.6 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), respectively. It is ascertained that doping spherical amorphous Al/Ti alloy can promote the thermal decomposition of explosives.

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宋小蘭,王毅,劉雙,程志鵬,李鳳生.非晶態(tài)Al/Ti球形金屬粒子的制備及其對(duì)高能炸藥熱分解的催化性能[J].稀有金屬材料與工程,2021,50(4):1210~1217.[Song Xiaolan, Wang Yi, Liu Shuang, Cheng Zhipeng, Li Fengsheng. Metallic amorphous Al/Ti spherical particles and its catalysis effects on the thermal decomposition of high explosives[J]. Rare Metal Materials and Engineering,2021,50(4):1210~1217.]
DOI：10.12442/j. issn.1002-185X.20200204

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  • 收稿日期:2020-03-25
  • 最后修改日期:2020-09-21
  • 錄用日期:2020-10-15
  • 在線發(fā)布日期: 2021-05-08
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