Investigation of the shock compression behaviors of Al/PTFE composites with experimental and a 3D mesoscale-model

作     者：Xiang-li Yang Yong He Yuan He Chuan-ting Wang Jie Zhou Xiang-li Yang;Yong He;Yuan He;Chuan-ting Wang;Jie Zhou

作者机构：Departnentsof Mecharical Engneering Nanjing Uriversity of Science&TechnologyNanjingJiangsu210094PR China Hubei Aeros pace Flight Vehide InstituteWuhan 430040PR China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2022年第18卷第1期

页      面：62-71页

核心收录：

学科分类：08[工学] 0806[工学-冶金工程] 0817[工学-化学工程与技术] 0826[工学-兵器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This work was supported by the Fundamental Research Funds for the Central Universities[grant numbers 30915118812,30915118806,and 309171B8804] the National Natural Science Foundation of Jiangsu China[grant number BK20160832] and the National Natural Science Foundation of China[grant numbers 51601095,11504173,11502118,11702145,51375244,and 51301093]. 

主　　题：AI/PTFE reactive materials 3D mesoscale-model Shock-assisted reaction Shock Hugoniot 

摘      要：The responses of Al/PTIFE reactive materials(RMs)under shock compression were investigated by a single-stage gas gun.A 3D mesoscale-model was established based on micro-computed tomography(micro-CT)slice images and confirmed with experimental results.In the high-pressure stage,the com-posites reacted partially,whereas there were no deviations between the partially reacted Hugoniot and the inert simulation results.The simulation reveals that the Teflon matrix melting on the high shock pressure.Melts and decomposition of the PTFE accelerated the diffusion of the atoms.Thus,the reactions of the Al/PTFE composites are more like a combustion rather than a detonation.