HMX的β→δ晶型转变研究进展

Review on β→δ Phase Transition of HMX

奥克托今(HMX)是最重要的含能材料之一,广泛应用于各种推进剂和炸药。HMX发生爆轰前将发生β→δ晶型转变,研究HMX的β→δ晶型转变规律可以加深对HMX的感度、爆轰过程和贮存安全性的认识。本文从HMX的晶体结构、晶型转变动力学和晶型转变影响因素三个方面对HMX的β→δ晶型转变进行了综述,并提出以HMX的晶体品质及固体添加剂对β→δ晶型转变的影响作为今后的研究方向。

Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine （HMX） is one of the most important energetic materials used in various propellants and explosives. The β-HMX undergoes a phase transition into δHMX before detonation. The study of the β→δ phase transition in the HMX can deepen our understanding of the sensitivity, detonation process and storing safety of HMX. The crystal structure of HMX,kinetics of the β→δ phase transition and the influencing factors of phase transition were reviewed. The crystal quality of HMX and the solid additive effect on the β→δ phase transition were proposed as the future research direction.