树枝状纳米钴微晶对AP/HTPB推进剂性能的影响  

Effect of dendritic nano-crystalline Co on combustion properties of AP/HTPB propellant

作　　者：曹新富[1] 杨毅[1] 李凤生[1] 刘建勋[1] 

机构地区：[1]南京理工大学国家特种超细粉体工程技术研究中心

出　　处：《固体火箭技术》2008年第2期157-160,共4页Journal of Solid Rocket Technology

基　　金：国家自然科学基金项目(50306008);总装预研项目(513280350709)

摘　　要：采用化学还原法制备了纳米钴微晶,采用XRD、SEM、TEM和EDAX对产物进行了表征。结果表明,纳米钴微晶呈树枝状、结晶度高、颗粒尺寸均匀。运用DTA分析研究了纳米钴微晶对AP和AP/HTPB推进剂分解的催化性能及对AP/HTPB推进剂燃烧性能的影响。结果显示,纳米钴微晶对AP热分解有着极强的催化活性,对降低AP/HTPB推进剂压强指数有着较好的效果。The nano-crystalline Co was prepared by chemical reduction method. The sample was characterized by means of XRD, SEM, TEM and EDAX. The results show that nano-crystalline Co presents dendrite with better crystallinity and uniform particle size distribution. The catalysis of nano-crystalline Co on decomposition of AP and AP/HTPB propellant as well as the effect of nano-crystalline Co on combustion properties of AP/HTPB propellant were investigated by means of DTA. The results show that nano-crystalline Co possesses excellent catalytic activity for thermal decomposition of AP, which can effectively reduce the pressure exponent of AP/HTPB propellant.

关 键 词：纳米钴微晶 AP/HTPB推进剂 热分解 催化 燃烧 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]