固体火箭技术2024，Vol.47Issue(6)：803-814,12.DOI:10.7673/j.issn.1006-2793.2024.06.007
AP@Al复合材料的制备及燃烧性能研究
Research on preparation and combustion performance of AP@Al composites
张婷婷 1姜艳秋 1霍文龙 1夏德斌 1张健 1王平 1林凯峰 1杨玉林1
作者信息
- 1. 哈尔滨工业大学 化工与化学学院,哈尔滨 150001
- 折叠
摘要
Abstract
During the combustion of traditional aluminum-based propellants,Al agglomeration and products of condensed phase combustion would cause serious two-phase flow loss,resulting in a decrease in specific impulse.In this work,NH4 ClO4@Al(AP@Al)composites were designed and prepared to increase the effective contact between oxidant and fuel,and the morphology,struc-ture,thermal decomposition performance,combustion performance,residue particle size and combustion mechanism of AP@Al were studied.The results show that Al powder is evenly dispersed on the surface of AP in AP@Al composites,which effectively in-creases their contact area and shortens the distance of mass and heat transfer.The decomposition of AP produces a large amount of gas,which helps to disperse Al powder.The full contact between Al powder and oxidizing atmosphere not only promote the combus-tion of Al powder,but also reduce the particle size of combustion residue.Compared with the physical mixture,the combustion flame maximum temperature of AP@Al-HTPB propellant is increased by 28%.And the combustion time is shortened by 5.1%.Ac-cordingly,the combustion rate is increased by 5.6%.In addition,the particle size of residue is reduced by 32.7%.To sum up,the combustion performance of AP@Al-HTPB propellant is obviously improved.关键词
铝粉/高氯酸铵/丁羟推进剂/燃烧Key words
aluminum powder/ammonium perchlorate/HTPB propellant/combustion分类
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张婷婷,姜艳秋,霍文龙,夏德斌,张健,王平,林凯峰,杨玉林..AP@Al复合材料的制备及燃烧性能研究[J].固体火箭技术,2024,47(6):803-814,12.
