Zhang Yuxin, Yan Yichao, Wang Yao, Ai Mengting, Jiang Hongchuan, Wang Liang, Zhao Xiaohui, Zhang Wanli, Li Yanrong
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, 621999, China.
Nanoscale Res Lett. 2018 Jul 11;13(1):206. doi: 10.1186/s11671-018-2618-y.
Integrating energetic materials on a chip has received great attention for its widely potential applications in the microscale energy consumption system, including electric initiation device. In this article, reactive Al/PTFE nanolaminates with periodic layer structure are prepared by magnetron sputtering, which consists of fuel Al, oxidant PTFE, and inert layer Al-F compound in a metastable system. The as-deposited Al/PTFE nanolaminates exhibit a significantly high energy output, and the onset temperature and the heat of reaction are 410 °C and 3034 J/g, respectively. Based on these properties, an integrated film bridge is designed and fabricated via integrating Al/PTFE nanolaminates with a Cu exploding foil, which exhibits enhanced energetic performances with more violent explosion phenomenon, larger quantities of ejected product, and higher plasma temperature in comparison with the Cu film bridge. The kinetic energy of flyers derived from the expansion of the Cu film bridge is also increased around 29.9% via integration with the Al/PTFE nanolaminates. Overall, the energetic performances can be improved substantially through a combination of the chemical reaction of Al/PTFE nanolaminates with the electric explosion of the Cu film bridge.
将含能材料集成到芯片上因其在微尺度能量消耗系统（包括电起爆装置）中的广泛潜在应用而备受关注。在本文中，通过磁控溅射制备了具有周期性层结构的反应性Al/PTFE纳米层压板，该材料在亚稳态系统中由燃料Al、氧化剂PTFE和惰性层Al-F化合物组成。沉积态的Al/PTFE纳米层压板表现出显著的高能量输出，起始温度和反应热分别为410℃和3034 J/g。基于这些特性，通过将Al/PTFE纳米层压板与铜爆炸箔集成，设计并制造了一种集成薄膜桥，与铜薄膜桥相比，其表现出增强的含能性能，爆炸现象更剧烈，喷射产物量更大，等离子体温度更高。通过与Al/PTFE纳米层压板集成，铜薄膜桥膨胀产生的飞片动能也增加了约29.9%。总体而言，通过Al/PTFE纳米层压板的化学反应与铜薄膜桥的电爆炸相结合，可以大幅提高含能性能。
