摘要
研究了ZrO2和ZrB2对螺压NC/NG/炭黑和铜盐/铅盐/其它助剂(57.0/33.0/0.7/2.0/7.3)混合物制成的双基推进剂燃烧性能的影响,用稳态燃烧火焰照片和燃烧区温度波分布揭示了它们的作用机理。结果表明,分别采用ZrO2和ZrB2代替部分铅铜催化剂后,推进剂7 MPa下的燃速最大可增加73%和41%,其低压燃烧平台移向7 MPa以上,并拓宽至13 MPa。并且随着ZrO2和ZrB2粒度的减小,催化推进剂的燃烧速度增大,表明ZrO2和ZrB2对螺压双基推进剂的燃烧有良好的催化效果。
The effects of ZrO2 and ZrB2 on combustion performances of screw extrusion double-based （DB） propellant composed of 57% of NC,33% of NG,0.7% of carbon black and copper salt,2.0% of lead salt and 7.3% of other additives were studied. Their reaction mechanisms were explored by steady combustion photos and the temperature distribution of combustion zone. The results indicate that when lead/copper combustion catalysts are partly replaced respectively by ZrO2 and ZrB2 ,the burning rate of the DB propellant at 7 MPa can increase,and its low pressure combustion plateau moves to above 7 MPa,and is broadened to 13 MPa,and with decreasing the granularity of ZrO2 and ZrB2 ,the burning rate of propellant increases.showing that ZrO2 and ZrB2 have better catalytic effects on this propellant.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2013年第1期53-56,共4页
Chinese Journal of Energetic Materials
基金
燃烧与爆炸技术重点实验室基金(编号:9140C35030706)
关键词
物理化学
固体推进剂
高熔点锆类材料
燃烧催化剂
催化机理
physical chemistry
solid propellant
high-melting point zirconic materials
combustion catalyst
catalytic mechanism
