The responses of Al/PTFE reactive materials (RMs) under shock compression were investigated by a single-stage gas gun. A 3D mesoscale-model was established based on micro-computed tomography (micro-CT) slice images and confirmed with experimental results. In the high-pressure stage, the composites reacted partially, whereas there were no deviations between the partially reacted Hugoniot and the inert simulation results. The simulation reveals that the Teflon matrix melting on the high shock pressure. Melts and decomposition of the PTFE accelerated the diffusion of the atoms. Thus, the reactions of the Al/PTFE composites are more like a combustion rather than a detonation.

通过单级气枪研究了冲击压缩下 Al/PTFE 反应材料 (RM) 的响应。基于微型计算机断层扫描 (micro-CT) 切片图像建立了 3D 中尺度模型，并通过实验结果进行了验证。在高压阶段，复合材料部分反应，而部分反应的 Hugoniot 与惰性模拟结果之间没有偏差。模拟表明，Teflon 基体在高冲击压力下熔化。PTFE的熔化和分解加速了原子的扩散。因此，Al/PTFE 复合材料的反应更像是燃烧而不是爆炸。