Combustion Mechanism of Fuel-rich Propellant Based on Boron
The difference of the combustion characteristic between two propellants which contain boron coated with and without AP was compared and analyzed. The combustion wave temperature profiles and the flame structures of fuel-rich propellant based on boron were measured by using W-Re micro-thermal couple and flame photo technique. The gaseous phase of the propellant burning was divided three subsections according to the tend of temperature change in gaseous phase, and the thickness of every subsection is given. It analyzed the reason of different tend temperature change in different subsection. The surface appearance and element distribution of extinguished samples were analyzed by JMS-5800 SEM. The experimental results of cutaway view of quenched surface photo of the fuel-rich propellant based on boron showed: there was sediment covered on the combustion surface, it was think that sediment is reactionless and consists of boron, carbon and few B2O3 by analyzing. The thickness of sediment on the combustion suface and the thickness of gaseous phased on the combustion surface are about equivalent, so we think that the gaseous reaction undergo in the sediment.
boron fuel-rich solid propellant burning rate combustion wave
WANG Yinghong ZHANG Xiaohong
Coll of Astronautics, Northwestern Polytechnic Univ, Xian 710072, Shaanxi, China Xian Modern Chemistry Research Institution, Xian 710065, Shaanxi, China
国际会议
西安
英文
445-449
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）