含能材料2011，Vol.19Issue(6)：632-636,5.DOI:10.3969/j.issn.1006-9941.2011.06.008
HMX晶体内部孔隙率、缺陷类型及颗粒度对冲击波感度的影响
Effects of HMX Crystal Characteristics on Shock Sensitivities: Crystalline Inter Voids, Particle Size, Morphology
摘要
Abstract
The effects of HMX crystalline inter voids, particle size, morphology and defects type on shock sensitivity were studied using standard gap test method. The shock initiation threshold of HMX/rap oil (76/24, wt. %) composition was detected with gap test where HMX was recrystallized to various qualities . Results show that the gap thickness decreases from 15. 5 mm to 13.2 mm when the crystal apparent density increases from 1.8992 g ? Cm-3 to 1.9016 g ? Cm-3, and gap thickness increased from 13.0 mm to 14.3 mm with particle size increasing from 20 μm to 650 μm. The crystal defects type is major factors affecting shock sensitivity, and the shock sensitivities of HMX with twins defects is higher than that of without twin defects. The crystal morphology has almost no effects on shock sensitivity, when the crystal apparent density and particle size is same.关键词
爆炸力学/HMX/晶体特性/冲击波感度Key words
explosion mechanics/ HMX/ explosive/ crystal characteristics/ shock sensitivity分类
军事科技引用本文复制引用
徐容,李洪珍,康彬,李金山,黄明,卢校军..HMX晶体内部孔隙率、缺陷类型及颗粒度对冲击波感度的影响[J].含能材料,2011,19(6):632-636,5.基金项目
中国工程物理研究院发展基金资助项目(2010B0302040) （2010B0302040）
