含能材料2024，Vol.32Issue(11)：1154-1161,8.DOI:10.11943/CJEM2023271
磁场辐射下TNT晶体性能的变化特性
Theoretically and Experimentally Revealed the Response of TNT Crystal to Strong Magnetic Field
任海超 1贾宪振 1刘瑞鹏 1王昊 2孙晓宇 2张增明 2陶俊 1王晓峰1
作者信息
- 1. 西安近代化学研究所,陕西 西安 710065
- 2. 中国科学技术大学物理学院,安徽 合肥 230022
- 折叠
摘要
Abstract
To gain a comprehensive understanding of the properties changes of TNT crystals under strong magnetic field radia-tion,the morphological changes,the lattice constants and the thermal decomposition characteristic were explored using the scanning electron microscope,X-ray diffraction,Raman spectroscopy and differential scanning calorimeter(DSC),respectively.Moreover,the variations of lattice constants,molecules distributions,mechanical properties and theoretical impact sensitivity of TNT under magnetic field radiation were investigated by molecular dynamics simulations.The experimental results,with the ap-plication of 6 T magnetic field,showed that the microscopic morphology was changed from the scale-needle structure to the ir-regular block structure,and the exothermic peak temperature of thermal decomposition was increased from 289.6℃to 304.1℃.However,the crystal phase structure and lattice constants of the TNT remained unchanged.Furthermore,theoretical investigations indicated that the TNT lattice constant not affected by magnetic field radiation,but the magnetic field did change the molecules distribution in the TNT crystal.The 8 T magnetic field radiation significantly improved the ductility of TNT.Howev-er,it simultaneously increased the impact sensitivity of TNT by comparing the ratio for the longest trigger bonds.关键词
磁场/微观形貌/热分解/分子动力学/力学模量/撞击感度Key words
magnetic field/microscopic morphology/thermal analysis/molecular dynamics/mechanical modulus/impact sensi-tivity分类
军事科技引用本文复制引用
任海超,贾宪振,刘瑞鹏,王昊,孙晓宇,张增明,陶俊,王晓峰..磁场辐射下TNT晶体性能的变化特性[J].含能材料,2024,32(11):1154-1161,8.
