纳米铝粉在复合推进剂中的应用  

Application of nano-aluminum in composite propellant

作　　者：高东磊[1] 张炜[1] 朱慧[1] 刘香翠[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《固体火箭技术》2007年第5期420-423,共4页Journal of Solid Rocket Technology

摘　　要：考察了不同类型纳米铝粉的能量性能及热氧化特性。结果表明,纳米铝粉的活性铝含量低于普通铝粉,随活性铝含量的降低,纳米铝粉的燃烧热值降低;纳米铝粉呈现出与普通铝粉截然不同的热氧化特性。同时,研究了纳米铝粉对复合推进剂的燃烧性能与能量性能的影响,结果表明,纳米铝粉可提高推进剂的燃速和降低压强指数,有利于改善推进剂的燃烧性能,但纳米铝粉的低活性铝含量导致推进剂的爆热值降低。Energy performance and thermal behavior of different nano-aluminum powders were investigated. The results show that active aluminum content of nano-aluminum is lower than that of general aluminum. The combustion heat of nano-aluminum decreases with the decrease of active aluminum content. Nano-aluminum is quite different with general aluminum in thermal behavior. Meanwhile,the effects of nano-aluminum on combustion and energy performance of composite propellant were studied. The results indicate that with the addition of nano-aluminum, the combustion properties of propellant can be effectively improved, but explosive heat is decreased due to low active aluminum content of nano-aluminum.

关 键 词：纳米铝粉 复合推进剂 活性铝含量 燃速 爆热 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]