Effects of content and particle size of TiH2 powders on the energy output rules of RDX composite explosives  

作　　者：Hao Wang Yangfan Cheng Shoujun Zhu Zihan Li Zhaowu Shen 

机构地区：[1]School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001,China [2]Anhui Engineering Laboratory of Explosive Materials and Technology,Anhui University of Science and Technology,Huainan 232001,China [3]School of Engineering Science,University of Science and Technology of China,Hefei 230027,China

出　　处：《Defence Technology（防务技术）》2024年第2期297-308,共12页Defence Technology

基　　金：the National Natural Science Foundation of China(Grant Nos.11972046,12272001);the Outstanding Youth Project of Natural Science Foundation of Anhui Province(Grant No.2108085Y02);Anhui University of Science and Technology Postgraduate Innovation Fund(Grant No.2022CX2108);the authors would like to thank these foundations for the financial supports.

摘　　要：In order to improve the detonation characteristics of RDX,a RDX-based composite explosive with TiH_(2)powders was prepared.The effects of content and particle size of TiH_(2)powders on thermal safety,shock wave parameters and thermal damage effects of RDX-based composite explosive were studied with the C80 microcalorimeter,air blast experiment system and colorimetric thermometry method.Experimental results showed that TiH_(2)powders could enhance the thermal stability of RDX-based composite explosive and increase its ultimate decomposition heat.The content and particle size of TiH_(2)powders also had significant effects on the thermal safety,detonation velocity,shock wave parameters,fireball temperature and duration of RDX-based composite explosives.Furthermore,the differences of TiH_(2)and Ti powders on the detonation energy output rules of RDX-based composite explosives were also compared,showing that TiH_(2)powders had better influences on improving the explosion power and thermal damage effect of RDX-based composite explosives than Ti powders,for the participation of free H_(2)released by TiH_(2)powders in the detonation process.TiH_(2)powders have important research values as a novel energetic additive in the field of military composite explosives.

关 键 词：RDX Hydrogen storage alloy Air blast After-burn reaction Colorimetric thermometry 

分 类 号：TQ560.1[化学工程—炸药化工]