Cu箔晶体微观形貌对爆炸箔起爆器的性能影响试验研究  

Effect of Micro Morphology and Crystal Structure of Copper Foil on the Performance of Exploding Foil Initiator

作　　者：韩克华 曾鑫[1] 赵婉君 褚恩义 焦清介[1] HAN Ke-hua;ZENG Xin;ZHAO Wan-jun;CHU En-yi;JIAO Qing-jie(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Science and Technology on Applied Physical Chemistry Laboratory,Shaanxi Applied Physics and Chemistry Research Institute,Xi′an 710061,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]陕西应用物理化学研究所应用物理化学国家级重点实验室,陕西西安710061

出　　处：《含能材料》2023年第6期568-576,共9页Chinese Journal of Energetic Materials

基　　金：国家“十四五”基础科研项目(90903050301)。

摘　　要：为研究Cu箔微观形貌及内部晶体组织结构对爆炸箔起爆器(Exploding Foil Initiator,EFI)性能的影响规律,采用闭合场非平衡磁控溅射离子镀技术和Lift-Off刻蚀法,在150,450 W和800 W溅射功率条件下制备了3种不同晶体形貌的Cu箔,并开展相应爆炸箔(Exploding Foil,EF)电爆炸性能,飞片速度以及EFI发火性能的试验研究。试验结果表明:3种溅射功率对应样品的平均晶粒尺寸分别为19.6~36.7nm,41.5~62.9 nm和58.6~80.2 nm,表面平均粗糙度分别为6.7,16.9 nm和46.2 nm,附着力分别为42.436,55.569 mN和71.135 mN。溅射功率为800 W时制备的Cu箔晶粒尺寸最大且分布最均匀,晶粒沉积致密平整,晶界较少,表面粗糙度最大,附着力最强,Cu(1 1 1)晶面的衍射峰最高,相应EF的电阻值和电感值最小,电爆炸能量利用率和飞片速度最高,集成的EFI 50%发火感度比溅射功率为450 W和150 W获得的样品分别高19.1%和22.6%。In order to explore the effect of microstructure and crystal organization of copper(Cu)foil on the performance of exploding foil initiator(EFI),three Cu foils with different crystal morphologies were prepared through the closed‑field non‑equilibrium magnetron sputtering ion plating technique and Lift‑Off etching method under the sputtering power of 150,450 W and 800 W.Experimental characterizations of the electrical explosion performance and flyer velocity of exploding foil(EF),and the ignition performance of EFI were conducted subsequently.Average grain size of the samples fabricated at 150,450 W and 800 W are 19.6-36.7nm,41.5-62.9 nm and 58.6-80.2 nm,surface average roughness are in turn 6.7,16.9 nm and 46.2 nm,and the adhesion force are 42.436,55.569 mN,and 71.135 mN,respectively.Of which,the Cu foil prepared at 800 W exhibits the largest and the most uniform grain size,the densest and smoothest grain,the fewest grain boundaries,the largest surface roughness and the strongest adhesion force.The corresponding EF has the smallest resistance and inductance,highest energy conversion efficiency and flyer velocity.The 50%firing sensitivity of the integrating EFI sputtered at 800 W are 19.1%and 22.6%higher than the samples sputtered at 450 W and 150 W,respectively.

关 键 词：爆炸箔起爆器 Cu箔 微观形貌 电爆炸 飞片速度 发火性能 

分 类 号：TJ45[兵器科学与技术—火炮、自动武器与弹药工程]