成型温度对PBX装药内部质量及性能的影响

针对压制成型的PBX炸药装药，选择CT无损检测、巴西实验和扫描电镜检测等技术，对比研究了室温和加热两种温度下压制成型的炸药装药内部质量、静态力学性能和细观破坏形式。结果表明，加热压制有利于改善炸药装药的内部质量，可避免产生初始损伤，且提高了装药的力学性能。细观尺度上，室温压制成型的装药主要发生界面脱黏破坏，加热压制成型装药的主要破坏形式是穿晶断裂。

Influence of Molding Temperature on the Internal Quality and Properties of PBX Explosive Charge

CT detection, Brazilian experiment and scanning electron microscope detection were selected to compare the internal quality, static mechanical properties and micro-scale damage forms of PBX explosive charge pressed and formed at room temperature and heating temperature. Results show that heating and pressing can improve the internal quality of explosive charge, avoid initial damage and improve the mechanical properties of charge. On the mesoscale, the main failure form of the charge pressed at room temperature is interface debonding, and that of the charge pressed by heating is transgranular fracture.