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| Research Advances and Consideration of Phase Transition Mechanisms of Insensitive Explosives at High Temperature |
| Received:March 25, 2019 Revised:April 25, 2019 |
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| DOI：10.7643/issn.1672-9242.2019.09.004 |
| KeyWord:high-temperature phase transition insensitive explosives energetic materials safety mechanism crystal type inhibition environmental adaptability |
| Author | Institution |
| WEN Yu-shi |
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang , China |
| DAI Xiao-gan |
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang , China |
| ZHENG Xue |
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang , China |
| LI Ming |
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang , China |
| TIAN Yong |
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang , China |
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| Abstract: |
| This paper reviewed the research progress of phase transition mechanism of HMX, CL-20 and FOX-7, which were all candidate components of future insensitive explosives. Several reasons that high-temperature phase transition reduced explosive safety were summarized. The main reasons included that the phase transition decreased the stability, changed the densities, and increased the internal defects of explosives. Methods for reducing the effects of high-temperature phase transition on the safety of insensitive explosives were also considered initially. It was believed that the main method to reduce the impact of high temperature phase transition on the safety of explosives was still to suppress the phase transition to a certain extent; while the co-crystal synthesis, the core-cell coating, the crystal phase transition controlling agent and formulation suppress technology are the future research direction of phase transition suppression. |
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