B/Ti薄膜点火元件电爆输出性能研究

Study on Performance of Electric Ignitor Based on B/Ti Energetic Films

在Cu微桥箔基础上,利用电泳技术沉积B/Ti含能薄膜材料制备了点火元件。针对B/Ti含能薄膜材料,通过SEM和DSC开展了表面形貌和放热性研究。B/Ti含能薄膜材料颜色均匀,整体呈蓬松状,反应起始温度远低于B和Ti的熔点,且只有一个放热峰。对Cu/B/Ti点火元件进行了电学性能测试,输入电压400V的条件下,Cu/B/Ti电爆炸点火元件爆发时间为40ns,并伴有强烈的火光,火焰高度达数毫米。

In this paper, electric exploding ignitor was fabricated by Cu exploding foils integrated with B/Ti energetic films. B/Ti energetic films were deposited by electrodeposition. The as-deposited B/Ti energetic films were characterized by DSC and SEM to analyze the exothermic reaction performance and morphology. The B/Ti energetic films was uniform and fluffy as a whole. The onset temperature was far lower than the melting point of B and Ti. Meanwhile, there is only one exothermic peak. The electric performance of electric exploding ignitor based on B/Ti energetic films was investigated. The exploding time was about 40 ns under 400 V accompanied by strong fire, and the flame height was several millimeters.