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近20几年来,单组元推进剂-肼已成功地应用于卫星与空间推进系统上.但控制肼与金属贮箱表面接触处的分解率的基本因素和机理还没有完全了解.在贮存期间,无水肼主要分解为氨和不溶解的氮,因而,使贮箱压力在寿命期慢慢地上升.其分解机理是由于贮箱表面上的非均匀催化作用和液体容积内的均匀催化作用结合在一起来控制的.对影响压力上升的因素要彻底地了解,以保证这些因素在催化剂贮存装置(PSA)设计、制造、加注和验收试验时合理地规定和控制.这对贮箱采用球胆或薄膜时更为重要,
Hydrazine, a single component propellant, has been successfully used in satellite and space propulsion systems in the past 20 years, but the fundamental factors and mechanisms that control the rate of decomposition of hydrazine at the interface with metal tanks are not fully understood. During storage , The anhydrous hydrazine decomposes mainly into ammonia and undissolved nitrogen, thus allowing the tank pressure to rise slowly over its lifetime.The decomposition mechanism is due to the heterogeneous catalysis on the surface of the tank and to the homogeneous catalysis within the liquid volume Combined together to control the factors that affect the pressure rise to fully understand to ensure that these factors in the catalyst storage device (PSA) design, manufacture, filling and acceptance tests properly defined and controlled.This for the tank Ball or film is more important,