This paper mainly introduces the Ph−Fe/RDX(HMX) composite microspheres prepared by ultrasonic spray drying. Their morphology was observed by SEM and found that the composite microspheres were spherical. Also, the composite microspheres exhibited good dispersion. The results of the granularity data show that the D₅₀ data of Ph−Fe/RDX and Ph−Fe/HMX were 580.78 nm and 496.52 nm, respectively. The DSC data showed that the catalytic effect of the composite microspheres was significantly better than that of the mixed powder. The DSC data showed that the decomposition peak temperature of the Ph−Fe/RDX(HMX) composite microsphere was 229.6 °C (279.6) lower than the 235.6 °C (284.3) of the mixed powder. The DSC data demonstrated that the catalytic performance of the composite microspheres was significantly better than that of the mixed powder. Therefore, the ultrasonic spray drying method has great potential for preparing energetic composite microspheres.

中文翻译：

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微球形Ph-Fe / RDX（HMX）复合粒子的制备及其热分解行为

本文主要介绍了超声喷雾干燥法制备的Ph-Fe / RDX（HMX）复合微球。通过SEM观察它们的形态，发现复合微球是球形的。而且，复合微球表现出良好的分散性。粒度数据的结果表明，D ₅₀Ph-Fe / RDX和Ph-Fe / HMX的数据分别为580.78 nm和496.52 nm。DSC数据表明，复合微球的催化效果明显好于混合粉体。DSC数据显示，Ph-Fe / RDX（HMX）复合微球的分解峰温度比混合粉末的235.6°C（284.3）低229.6°C（279.6）。DSC数据表明，复合微球的催化性能明显优于混合粉末。因此，超声喷雾干燥法具有制备高能复合微球的巨大潜力。