Study of Initiation of Pentaerythritol Tetronitrate by Laser-driven Flyer Plates
Laser-driven flyer plates comprised of one or more thin layers forming a foil coated onto a transparent substrate. The flyers were produced by single pulses from a Q-switched Nd:YAG laser, which irradiated the foil/substrate interface. Multiple layer targets were evaluated with a time-of-flight method for measuring flyer plate velocity. The multiple layer targets employed included CuO/Cu, CuO/Al/Cu, and CuO/Al. The velocity measurements were compared for the three target constructions. It was found that CuO/Al multiple layer targets was the most efficient, producing flyer plate velocity of about 5.7 km/s, for a radiant exposure of approximately 376 mJ. The unconfined pentaerythritol tetranitrate explosive columns whose size of Φ2×4.8 mm2 and density of 1.0 g/cm3 were impacted and initiated by laser-driven flyers launched from the multiple layer targets at different laser energies. We evaluated P2τ in the extreme shock regime.
WU Lizhi SHEN Ruiqi XU Jiao CHEN Shaojie ZANG Xiaowei YE Yinghua HU Yan
School of Chemical Engineering,Nanjing University of Science &Technology,Nanjing 210094,China
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
748-752
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）