Burning surface formation mechanism of laser-controlled 5-aminotetrazole propellant  

作　　者：Nian-bai He Rui-qi Shen Luigi T.DeLuca Li-zhi Wu Wei Zhang Ying-hua Ye Yue-ting Wang 

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]Sichuan Huachuan Industries Corporation,610106,Sichuan,China [4]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7期48-59,共12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, combustion mechanism of laser-augmented chemical propulsion has still to be ascertained. Benefiting from high nitrogen content and thermal stability, 5-aminotetrazole is a suitable ingredient for LACP. Under a flowing nitrogen environment, two kinds of unique burning surfaces were observed to occur for 5-ATZ, used as a single reacting propellant ingredient with the addition of carbon, under laser ablation. Both surfaces are hollow structures and differ by the possible presence of edges. Using micro computed tomography, the 3D perspective structures of both surfaces were revealed. Resorting to various characterization methods, a unified formation mechanism for both surfaces is proposed. This mechanism specifically applies to laser ablation, but could be crucial to common burning mechanisms in LACP.

关 键 词：5-Aminotetrazole(5-ATZ) Laser-augmented chemical propulsion (LACP) Combustion mechanism Burning surface Micro computed tomography(MicroCT) 

分 类 号：V51[航空宇航科学与技术—航空宇航推进理论与工程] TJ7[兵器科学与技术—武器系统与运用工程]