ABSTRACT Addition of 10 wt-% Al/CuO and 5 wt-% Al/PTFE significantly sensitizes the Al/KIO4 thermite. The energetic performance of this micron-sized blend approached the performance of nanothermite systems without the processing problems associated with the latter. The ignition temperature was significantly lower than that reported for the nano-Al/KIO4 (about 470°C) and flame front speeds approached 1 km·s−1. Exothermic decomposition products that facilitate removal of the protective oxide surface layer on the aluminum are responsible for the performance enhancement. The reduced ignition temperature is attributed to a change from the gas-solid mechanism, operative in Al/KIO4, to a condensed phase mechanism.

中文翻译：

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使微米级铝/钾高碘酸铝热敏化

摘要 添加 10 wt-% Al/CuO 和 5 wt-% Al/PTFE 显着敏化 Al/KIO4 铝热剂。这种微米级混合物的能量性能接近纳米铝热剂系统的性能，而没有与后者相关的加工问题。着火温度显着低于纳米铝/四氯化钾（约 470°C）的报道，火焰前沿速度接近 1 km·s-1。有助于去除铝上的保护性氧化物表面层的放热分解产物是性能增强的原因。点火温度的降低归因于从在 Al/KIO4 中起作用的气固机制转变为凝聚相机制。