Burning rate analysis of laser controlled 5-aminotetrazole propellant  

作　　者：Nianbai He Ruiqi Shen Luigi T.DeLuca Lizhi Wu Wei Zhang Yinghua Ye 

机构地区：[1]School of Chemical Engineering,Nanjing University of Science and Technology,210094,Jiangsu,China [2]Institute of Space Propulsion,Nanjing University of Science and Technology,210094,Jiangsu,China [3]Space Propulsion Laboratory(Ret),Department of Aerospace Science and Technology,Politecnico di Milano,20156,Milan,Italy

出　　处：《Defence Technology（防务技术）》2023年第4期10-27,共18页Defence Technology

基　　金：supported by the Shanghai Aerospace Science & Technology Innovation Fund (grant No. SAST201363);the Fundamental Research Funds for the Central Universities (grant No. 30919012102 in part)。

摘　　要：As an innovative propulsion technique, laser augmented chemical propulsion(LACP) seems superior to the traditional ones. However, the corresponding combustion theories have still to be ascertained for LACP. Burning rate of 5-aminotetrazole(5-ATZ) propellant has been studied by testing pressed samples under different combustor pressures and laser powers. Based on micro computed tomography(Micro CT),an advanced thickness-over-time(TOT) method to characterize the regression of the produced nonplanar burning surface is established. Because of a shell structure covering the combustion surface,the burning rate of the implemented 5-ATZ propellant is not constant during laser ablation. Resorting to functional fitting, a new law of non-constant burning including the effect of the observed unique burning surface structures is proposed. Accordingly, applicable combustion conditions of 5-ATZ based propellants have been preliminarily speculated for future research activities.

关 键 词：5-Aminotetrazole(5-ATZ) Laser-augmented chemical propulsion(LACP) Non-constant burning rate Micro computed tomography(MicroCT) Non-planar burning surface 

分 类 号：TQ560.1[化学工程—炸药化工] V51[航空宇航科学与技术—航空宇航推进理论与工程]