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Shock initiation and hot spots in plastic-bonded 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)
Applied Physics Letters ( IF 3.5 ) Pub Date : 2020-03-23 , DOI: 10.1063/1.5145216
Wei Zhang 1 , Lawrence Salvati 2 , Meysam Akhtar 2 , Dana D. Dlott 2
Affiliation  

TATB (1,3,5-triamino-2,4,6-trinitrobenzene) is a powerful explosive whose dynamical behavior is difficult to study because TATB is so insensitive to initiation by shock waves. We used a tabletop microscope equipped with 0–4.5 km/s laser-launched flyer plates to study shock initiation of TATB, which was fabricated in the form of an array of hundreds of plastic-bonded explosive minicharges (X-TATB = 80% TATB + 20% Sylgard 182 polymer). The 4 ns shocks from the flyer plates were not effective in initiating TATB, but we also developed a two-layer array where flyers first initiated a plastic-bonded PETN (pentaerythritol tetranitrate) charge (X-PETN = 80% PETN + 20% Sylgard), which drove an initiating 25 ns shock into the X-TATB. Thermal emission from shocked X-TATB was used to measure time-dependent temperature profiles with a resolution of 2 ns and to produce high-speed (5 ns) videos. In X-TATB, flyer plates produced 2500–3500 K hot spots and combustion at 2500 K. With X-PETN initiators, X-TATB had 3500–4000 K hot spots and a powerful volume explosion lasting a few nanoseconds. Prospects for producing TATB detonations on a tabletop are discussed.TATB (1,3,5-triamino-2,4,6-trinitrobenzene) is a powerful explosive whose dynamical behavior is difficult to study because TATB is so insensitive to initiation by shock waves. We used a tabletop microscope equipped with 0–4.5 km/s laser-launched flyer plates to study shock initiation of TATB, which was fabricated in the form of an array of hundreds of plastic-bonded explosive minicharges (X-TATB = 80% TATB + 20% Sylgard 182 polymer). The 4 ns shocks from the flyer plates were not effective in initiating TATB, but we also developed a two-layer array where flyers first initiated a plastic-bonded PETN (pentaerythritol tetranitrate) charge (X-PETN = 80% PETN + 20% Sylgard), which drove an initiating 25 ns shock into the X-TATB. Thermal emission from shocked X-TATB was used to measure time-dependent temperature profiles with a resolution of 2 ns and to produce high-speed (5 ns) videos. In X-TATB, flyer plates produced 2500–3500 K hot spots and combustion at 2500 K. With X-PETN initiators, X-TATB had 3500–4000 ...

中文翻译:

塑料粘合的 1,3,5-三氨基-2,4,6-三硝基苯 (TATB) 中的冲击引发和热点

TATB(1,3,5-三氨基-2,4,6-三硝基苯)是一种威力强大的炸药,其动力学行为很难研究,因为TATB对冲击波的起爆不敏感。我们使用配备 0–4.5 km/s 激光发射飞行板的台式显微镜来研究 TATB 的冲击引发,TATB 以数百个塑料粘合爆炸微型装药的阵列形式制造(X-TATB = 80% TATB + 20% Sylgard 182 聚合物)。来自传单板的 4 ns 冲击对启动 TATB 无效,但我们还开发了一种两层阵列,其中传单首先启动了塑料粘合的 PETN(季戊四醇四硝酸酯)电荷(X-PETN = 80% PETN + 20% Sylgard ),这将初始 25 ns 冲击驱动到 X-TATB。来自震动的 X-TATB 的热辐射用于测量与时间相关的温度分布,分辨率为 2 ns,并生成高速 (5 ns) 视频。在 X-TATB 中,飞板产生 2500-3500 K 热点并在 2500 K 下燃烧。使用 X-PETN 引发剂,X-TATB 具有 3500-4000 K 热点和持续几纳秒的强大体积爆炸。讨论了在桌面上产生 TATB 爆炸的前景。 TATB(1,3,5-三氨基-2,4,6-三硝基苯)是一种威力强大的炸药,其动力学行为难以研究,因为 TATB 对冲击波的起爆不敏感. 我们使用配备 0–4.5 km/s 激光发射飞板的台式显微镜来研究 TATB 的冲击引发,它以数百个塑料粘合炸药微型装药阵列的形式制造(X-TATB = 80% TATB + 20% Sylgard 182 聚合物)。来自传单板的 4 ns 冲击对启动 TATB 无效,但我们还开发了一种两层阵列,其中传单首先启动了塑料粘合的 PETN(季戊四醇四硝酸酯)电荷(X-PETN = 80% PETN + 20% Sylgard ),这将初始 25 ns 冲击驱动到 X-TATB。来自震动的 X-TATB 的热辐射用于测量与时间相关的温度分布,分辨率为 2 ns,并生成高速 (5 ns) 视频。在 X-TATB 中,飞板产生 2500-3500 K 的热点并在 2500 K 下燃烧。使用 X-PETN 引发剂,X-TATB 有 3500-4000 ... 但我们也开发了一个两层阵列,其中传单首先启动了塑料粘合的 PETN(季戊四醇四硝酸酯)电荷(X-PETN = 80% PETN + 20% Sylgard),这将启动 25 ns 冲击驱动到 X-TATB。来自震动的 X-TATB 的热辐射用于测量与时间相关的温度分布,分辨率为 2 ns,并生成高速 (5 ns) 视频。在 X-TATB 中,飞板产生 2500-3500 K 的热点并在 2500 K 下燃烧。使用 X-PETN 引发剂,X-TATB 有 3500-4000 ... 但我们也开发了一个两层阵列,其中传单首先启动了塑料粘合的 PETN(季戊四醇四硝酸酯)电荷(X-PETN = 80% PETN + 20% Sylgard),这将启动 25 ns 冲击驱动到 X-TATB。来自震动的 X-TATB 的热辐射用于测量与时间相关的温度分布,分辨率为 2 ns,并生成高速 (5 ns) 视频。在 X-TATB 中,飞板产生 2500-3500 K 的热点并在 2500 K 下燃烧。使用 X-PETN 引发剂,X-TATB 有 3500-4000 ...
更新日期:2020-03-23
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