首页|Energy release characteristics of PTFE/Al/TiH2 reactive jet with different TiH2 content
Energy release characteristics of PTFE/Al/TiH2 reactive jet with different TiH2 content
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Titanium hydride(TiH2),a promising high-energy additive,is doped into PTFE/Al to optimize the energy output structure of the reactive jet and strive for better aftereffect damage ability to the target.Six types of PTFE/Al/TiH2 reactive liners with different TiH2 content are prepared by the molding and sintering method.The energy release characteristics of PTFE/Al/TiH2 reactive jet are tested by the transient ex-plosion energy test,and are characterized from pressure and temperature.The reaction delay time,pressure history,and temperature history of the energy release process are obtained,then the actual value of released energy and reaction efficiency of the reactive jet are calculated.The results show that the peak pressure and temperature of the PTFE/Al/TiH2 jet initially increase and then decrease with increasing TiH2 content.When the TiH2 content is 10％,the actual value of released energy and reaction efficiency increased by 24％and 6.4％,respectively,compared to the PTFE/Al jet.The reaction duration of the reactive material is significantly prolonged as the TiH2 content increased from 0％to 30％.Finally,combined with the energy release behaviors of PAT material and the dynamic deformation process of liner,the enhancement mechanism of TiH2 on energy release of the reactive jet is expounded.
PTFE/Al/TiH2Reactive materialsShaped chargeImpact energy release characteristics
Chunlan Jiang、Jingbo Zhang、Rong Hu、Liang Mao、Ming Li
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State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China
National Natural Science Foundation of ChinaState Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology
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