减少含硼推进剂残渣中氮化硼含量的研究  

Reduction of BN fraction in the residue of boron-containing propellants

作　　者：邢曦[1] 李疏芬[1] 

机构地区：[1]中国科技大学化学物理系,合肥230026

出　　处：《固体火箭技术》2003年第1期51-54,共4页Journal of Solid Rocket Technology

基　　金：国家自然科学基金课题(50176047)。

摘　　要：针对含硼推进剂燃烧残渣中存在较多氮化硼(BN)问题,采用氧弹法进行硼点火的模拟实验,并用热分析、X射线转靶衍射和元素分析等方法研究了BN的来源及其生成量与空气压强、包覆剂的关系。结果发现BN中氮元素主要来源于空气中氮气,其生成量随空气压强的上升而增加,并与包覆剂的含氧量有关。提出了抑制BN生成的有效途径。Combustion residues analysis of boroncontaining propellant indicated that there exists considerable amount of boron nitride(BN)in the combustor of solid propellant ramjet(SPRJ).Simulative experiments of ignition and combustion of boron were carried out in the oxygen bomb. Some analytical methods such as thermoanalysis, XRD, EA and XPS were adopted to investigate the origin of BN in these residues and the effect of air pressure and oxidizers (coat agents) on the output of BN. The results show that N2 is the main origin of N element to form BN, the output of BN increases with the rising of air pressure and it is greatly affected by the oxidizers(coat agents).

关 键 词：含硼固体推进剂 氮化硼 残渣分析 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]