Experimental Study on the Effect of MgH2 on Ignition and Combustion Performance of Energetic Materials

被引：0

作者：

Zhang Y. ^{[1
,2
]}

Xu S.-Y. ^{[2
]}

Zhao F.-Q. ^{[2
]}

Yang F.-S. ^{[1
]}

Li H. ^{[2
]}

Ren X.-B. ^{[3
]}

Wu Z. ^{[1
]}

机构：

[1] School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an

[2] Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an

[3] Shanxi Northern Xing'an Chemical Industry Co. Ltd., Taiyuan

来源：

Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2021年 / 44卷 / 04期

关键词：

Energetic materials; Hydrogen storage materials; Ignition delay time; Laser Ignition; Magnisium hydride; Physical chemistry;

D O I：

10.14077/j.issn.1007-7812.202005002

中图分类号：

学科分类号：

摘要：

In order to research the influence of MgH2 on ignition and combustion performance for typical energetic materials, the ignition delay time and flame propagation velocity of the mixture of MgH2 and five kinds energetic materials were measured and calculated by laser ignition and high-speed photography visualization technology. The results show that 50.0% and 11.1% MgH2 have the best effect on improving the ignition and combustion performance of RDX. 11.1% MgH2 is the best for HMX. Meanwhile, 20.0%-33.3% MgH2 can significantly improve the flame propagation speed of CL-20. However, the ignition delay time of mixture is shorter when the addition of MgH2 is 50.0% and 11.1%. Furthermore, the ignition delay time of the mixture of FOX-7 and ADN with MgH2 are less than that of energetic components and MgH2 respectively, which means that the ignition process of these energetic materials and MgH2 can promote each other. Considering the improvement of ignition performance and flame combustion performance of FOX-7, the addition of 11.1% MgH2 is the most favorable. The improvement of ignition and combustion performance of ADN by using MgH2 is proportional to the amount of MgH2 added. The reason why MgH2 promotes the ignition and combustion performance of energetic materials is that the decomposition products of MgH2 benefit the phase transition of energetic materials, and finally enhance the ignition and combustion properties. © 2021, Editorial Board of Journal of Explosives & Propellants. All right reserved.

引用

页码：504 / 513

页数：9

共 27 条

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