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.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
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)
关键词
纳米钴微晶
AP/HTPB推进剂
热分解
催化
燃烧
nano-crystalline Co
AP/HTPB propellant
thermal decomposition
catalysis
combustion
