CL-20对Al/HMX-XLDB推进剂燃烧凝聚相产物的影响

Effects of CL-20 on the Condensed Combustion Products of Al/HMX-XLDB Propellants

采用激光粒度分析仪、扫描电子显微镜/光电子能谱(SEM/EDS)和X-射线衍射仪研究了CL-20取代Al/HMX-XLDB推进剂中HMX对推进剂凝聚相燃烧产物粒径、形貌以及组成的影响.研究表明,CL-20替代推进剂中的HMX可提高推进剂中Al粉的燃烧效率.CL-20完全取代推进剂中HMX时,推进剂燃烧残渣率最低,为0.500%,但HMX/CL-20-XLDB推进剂燃烧残渣率则为1.784%,分析可能与推进剂燃烧凝聚相产物团聚效应有关.随着CL-20的加入,在推进剂燃烧凝聚相产物中出现了κ-Al2O3和δ-Al2O3等Al的亚稳态氧化物.

The particulate size description analyzer, image analysis coupled with energy dispersive spectrometry （EDS） analysis on a scanning electron microscope （SEM）and quantitative X-ray diffraction analysis were applied to research the effects of CL-20 on the condensed combustion products of Al/HMX-XLDB propellants. The results showed that the combustion efficiency of Al contained in XLDB propellant can be improved by the addition of CL-20. The residue ratio of the propellant was reduced to 0.500% when CL-20 substituted for HMX completely. However, the combustion efficiency of Al was 1.784% when CL-20 substituted for HMX partly （50%）. It is probably due to the agglomeration of condensed combustion products. Meanwhile, K-A1203 and fi-Al2O3 appeared in the combustion products as the content of CL-20 increased.