高能复合燃料通过使用AlH3 嵌入Al粒子来提高燃烧效率
Ming-Hui Yu1, RuiXuan Xu1, Wu-Xi Xie2
1Science and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, Northwestern Polytechnical University, Xi'an 710072, China.
化 (AlH3) 复合推进剂显示了增强的能量输出. 与传统固体推进剂相比,涂层的改性AlH3颗粒显著提高了反应性和燃烧性能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 能量材料 能量材料
背景情况:
- 化 (AlH3) 是固体推进剂的一个有前途的能量材料.
- 传统的固体推进剂通常使用 (Al) 和AlH3混合物.
- 提高推进燃料的能量输出和燃烧效率是一个关键的研究领域.
研究的目的:
- 开发基于AlH3.3的新型能量复合粒子.
- 为了研究功能化涂层 (甲和聚乙烯) 对AlH3.3的影响.
- 为了评估基于AlH3的复合推进剂的燃烧性能.
主要方法:
- 使用声共振和喷雾干燥制备AlH3@Al@AP (AHAPs) 和AlH3@Al@AP@PFPE (AHAPs-F) 能量复合颗粒.
- 复合推进剂的配方和制造.
- 系统地研究热反应性,反应热,密度,真空稳定性,燃烧性能和冷凝燃烧产品 (CCP).
主要成果:
- 与传统的Al/AlH3混合物 (SP12) 相比,含有AHAPs (SP13) 和AHAPs-F (SP14) 的固体推进剂显著提高了反应能力和能量输出.
- SP13和SP14的总热释放量分别是SP12的1.2倍和1.7倍.
- SP14推进剂实现了较高的反应热量 (5887 J g-1),火焰辐射 (31.4 × 10^3) 和燃烧波温度 (2495 °C) 的较窄和较小的CPC,导致更高的燃烧效率.
结论:
- 功能化的涂层和先进的制备技术有效地提高了基于AlH3的能量材料的性能.
- 开发的AHAPs-F复合颗粒具有卓越的燃烧特性,非常适合用于先进的固体推进剂应用.
- 这项研究为下一代高能固体推进剂铺平了道路,提高了效率和性能.
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