摘要
采用折光匹配显微观察(OMS)和原子力显微镜(AFM)表征、X射线小角散射(SAXS)、表观密度浮沉法(SFM)、微聚焦CT扫描等方法,研究了不同结晶品质RDX、HMX晶体缺陷。OMS观察结果表明,普通RDX/HMX较降感RDX/降感HMX(RS-RDX/RS-HMX)晶体含有更多的表面裂纹与内部孔洞;X射线小角散射与高精度CT扫描统计测试结果表明,RS-RDX/RS-HMX晶体内部也含有一定数量较小尺寸的缺陷,但较普通RDX/HMX晶体内部含较大尺寸缺陷数量少。冲击波感度实验结果表明,炸药晶体缺陷数量、尺寸对PBX冲击波感度有较大影响。
The crystal internal defects of RDX/HMX were studied by optical microscopy with matching refractive(OMS),small angle scattering of X-ray(SASX),atomic force microscope(AFM),sink-fload method(SFM)and Mirco-CT.OMS and AFM results show that RDX/HMX has more defects and cracks than reduced sensitivity-RDX/reduced sensitivity-HMX.SASX results show that crystal internal defects of RDX/HMX are larger than that of RS-RDX/RS-HMX,and mirco-CT results show that RDX has larger internal defects than RS-RDX.Furthermore,shock sensitivity of RDX based PBXs and RS-RDX based PBXs were studied,and the results show that internal defects of RDX has great influence on shock sensitivity of RDX.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2010年第2期152-156,共5页
Chinese Journal of Energetic Materials
基金
国家自然科学基金(10972205/A020601)
中国工程物理研究院学科发展基金(200830302028)资助
关键词
爆炸力学
晶体缺陷
降感RDX
降感HMX
冲击波感度
表征方法
explosion mechanics
crystal internal defect
reduced sensitivity RDX
reduced sensitivity HMX
shock sensitivity
characterization method