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Effects of Different Metal Fuels on the Characteristics for HTPB‐based Fuel Rich Solid Propellants
Author(s) -
Pang Weiqiang,
Fan Xuezhong,
Zhao Fengqi,
Xu Huixiang,
Zhang Wei,
Yu Hongjian,
Li Yonghong,
Liu Fangli,
Xie Wuxi,
Yan Ning
Publication year - 2013
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201200182
Subject(s) - propellant , materials science , magnesium , combustion , metal , granularity , chemical engineering , microstructure , composite material , metallurgy , chemistry , organic chemistry , computer science , engineering , operating system
The microstructures and granularity distribution of different metal particles were investigated and the energy, sensitivity, and combustion properties of fuel rich solid propellants with different metal particles were studied in detail. It was found that the magnesium particles are more uniform than other metal powders, the mean diameter of the magnesium particles d 50 =67.6 μm is much higher than those of the other ones, which are in the range of 7.1 μm< d 50 <20.5 μm. Additionally, the preparation process of the Mg‐based propellant is easier than those of the other ones. The experimental results showed that the propellant containing magnesium powder was less sensitive to friction and impact (165.1 NM and 21.9 NM, respectively), whereas, the burning rates of propellants with Zr and ZrH 2 particles increased, and the pressure exponents decreased.