Fabrication and Characteristics of Al/PTFE Multilayers and Application in Micro-initiator

5th Annual International Conference on Material Science and Engineering

Zhang, Yuxin^1 ; Jiang, Hongchuan^1 ; Zhao, Xiaohui^1 ; Zhang, Wanli^1 ; Li, Yanrong^1

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu

610054, China^1

关键词: Bilayer thickness;    Duration time;    Electric explosion;    Heat of reaction;    Heat release;    Interface composition;    Layer structures;    Reaction temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/275/1/012045/pdf
DOI  :  10.1088/1757-899X/275/1/012045

来源: IOP

【 摘 要 】

In this paper, a micro-initiator was designed and fabricated by integrating Al/PTFE multilayers with a Cu film bridge. The regularity layer structure and interface composition of Al/PTFE multilayers was analysed by transmission electron microscope and X-ray photoelectron spectroscopy, respectively. The heat release reaction in Al/PTFE multilayers can be triggered with reaction temperature of 430 °C, and the overall heat of reaction is 3192 J/g. Al/PTFE multilayers with bilayer thickness of 200 nm was alternately deposited on a Cu film bridge to improve the electric explosion performances. Compared to Cu film bridge, the Al/PTFE/Cu integrated film bridge exhibits improved performances with longer explosion duration time, more violent explosion phenomenon and larger quantities of ejected product particles.