【摘要】 为了研究黑索今（RDX）对含硼富燃料推进剂一次燃烧产物组分的影响,用吉布斯最小自由能法计算了5种推进剂配方的一次燃烧产物组分,并通过测试燃烧产物中的总硼含量对热力学计算结果进行了验证。结果表明,采用最小自由能法计算含硼富燃料推进剂的一次燃烧产物组分,其结果准确、可靠;当含硼富燃料推进剂中RDX含量增加时,一次燃烧产物中B₄C和B₂O₃含量减少、C和BN含量增加,且一次燃烧温度也升高;提高一次燃烧压强可提高硼的氧化率、降低B₄C的生成量,有效提高一次燃烧温度,因此提高一次燃烧压强有助于提高含硼富燃料推进剂的二次燃烧效率。更多还原

【Abstract】 To explore the effect of RDX on the composition of primary combustion products for boron-based fuel-rich propellants,the composition of primary combustion products for five kinds of propellant formulas was calculated by Gibbs minimum free energy method and the thermodynamic calculation results were verified through the total boron content in the product of combustion experiments.The calculation results show that the results of the composition of primary combustion products of boron-based fuel-rich propellants calculated with Gibbs minimum free energy method were accurate and reliable.With increasing the content of RDX in the boron-based fuel-rich propellants,the content of B₄C and B₂O₃ decreases,the content of C and BN increases and the primary combustion temperature also increases.The content of B₄C decreases and the primary combustion temperature increases with increasing the primary combustion pressure,therefore the higher primary combustion pressure will be beneficial for the secondary combustion efficiency for the boron-based fuel-rich propellants.更多还原