Yokohama National University
Yokohama National University
Nagoya University
Fukuoka University
Yokohama National University
Yokohama National University
出版者
宇宙航空研究開発機構(JAXA)
出版者(英)
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構研究開発報告: 高エネルギー物質研究会: 令和4年度研究成果報告書
雑誌名(英)
JAXA Research and Development Report: Technical Report of The Research Activity for High Energy Materials (2022)
巻
JAXA-RR-22-006
ページ
11 - 14
発行年
2023-02-03
抄録(英)
Ammonium dinitramide (ADN) based energetic ionic liquids (EILs) has been expected as a next HEMs. Since ADN-based EILs are thermally stable, it is difficult to control ignition phenomena using thermal ignition methods. Our research group focused on an ignition method of the EILs by applying a voltage. Previous Studies have theoretically reported the possibility of ignition of ADN-based EILs and experimentally demonstrated the ignition. However, appropriate operational conditions have not been established due to a lack of understanding of the ignition process and phenomena. Therefore, the objective of this study was understanding the ignition process and phenomena based on the results of voltage applied experiments (image, temperature and current measurement). In this experiment, a voltage was applied to a droplet of ADN-based EILs, and the behavior of droplet was filmed by a high-speed camera, while temperature and current measurements were made simultaneously. The voltage
application process is divided into four phases based on current behavior. It was revealed that the amount of power required for the transition from Phase 1 to Phase 3 remained constant under different experimental conditions. Established a method for measuring ignition delay time. Furthermore, it became clear that the ignition delay time could be reduced by lowering the resistivity of the sample.
内容記述
形態: カラー図版あり
内容記述(英)
Physical characteristics: Original contains color illustrations