单向温模压TATB基高聚物粘结炸药X射线微层析成像  

X-ray Micro-tomography of TATB Based Polymer Bonded Explosives under Unidirectional Warm die Compaction

作　　者：张伟斌[1] 杨雪海[1] 杨仍才[1] 冯立羊[1] 杨存丰[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《含能材料》2014年第2期202-205,共4页Chinese Journal of Energetic Materials

基　　金：中国国防科技预研项目(426020502;426020603);中国工程物理研究院"双百"人才基金(ZX03015);中国工程物理研究院学科发展基金(2013B0203024);国家自然科学基金NSAF重点基金(U1330202)

摘　　要：利用X射线微层析成像技术获得了单向温模压TATB基高聚物粘结炸药微细结构的全三维信息。松装颗粒经升温软化、压制、摩擦仍完整并以不同形态保存下来。压制后的颗粒典型形态径向呈多边形、轴向呈扁长形并与径向有明显夹角。轴向与径向颗粒形态分布揭示了力学响应与内摩擦机制。X射线微层析成像提供了无损侵入非均质材料内部的分析方法,能探测颗粒材料压制排列方式及其高密度界面层。X-ray micro-tomography（ X-μC T） w as applied to obtain the complete three-dimensional（ 3D） recordings of the PBX under unidirectional w arm die compaction based on T AT B granules. T he loose-packed granules obtained through heating up to softening,compaction and friction w ere still complete and w ere preserved in different morphological features. T he typical form of compacted granules reveals a polygon at radial direction and oblong shape at axial direction in the PBX. T here is an obvious angle betw een axial direction and radial direction. T he axial and radial morphology distributions reveal the mechanics response and internal friction mechanism. X-μC T provides a analysis method of non-invasion into heterogeneous material internal and can probe the arrangement of compacted granule material and high density interface layers in PBXs.

关 键 词：材料检测与分析 TATB造型颗粒 温模压成型 高聚物粘结炸药 微细结构 X射线微层析成像 

分 类 号：O657.34[理学—分析化学] TQ560.72[理学—化学]