Wang Kexuan, Wang Jiangxu, Li Xinyu, Li Dangjuan, Cheng Junxia, Wang Jia, Wu Shenjiang
Shaanxi Applied Physics and Chemistry Research Institute, Xi'an 710061, China.
School of Optoelectronic Engineering, Xi'an Technological University, Xi'an 710021, China.
Micromachines (Basel). 2023 Jul 26;14(8):1499. doi: 10.3390/mi14081499.
This study examines the impact of surface defects on the electro-explosive properties of metal explosive foil transducers. Specifically, it focuses on the effects of defects in the bridge foil and their influence on the electrical explosion time and transduction efficiency. To analyze these effects, a current-voltage simulation model is developed to simulate the behavior of a defective bridge foil. The simulation results are validated through experimental current-voltage measurements at both ends of the bridge area. The findings reveal that the presence of through-hole defects on the surface of the bridge foil leads to an advancement in the electrical explosion time and a reduction in the transduction efficiency of the bridge foil. A performance comparison is made between the defective bridge foil and a defect-free copper foil. As observed, a through-hole defect with a radius of 20 μm results in a 1 ns advance in the blast time and a 1.52% decrease in energy conversion efficiency. Similarly, a through-hole defect with a radius of 50 μm causes a 51 ns advancement in the blast time and a 13.96% reduction in the energy conversion efficiency. These findings underscore the detrimental effects of surface defects on the electro-explosive properties, emphasizing the importance of minimizing defects to enhance their performance.
本研究考察了表面缺陷对金属爆炸箔换能器电爆炸特性的影响。具体而言，重点关注桥箔中的缺陷及其对电爆炸时间和转换效率的影响。为了分析这些影响，建立了电流-电压模拟模型来模拟有缺陷桥箔的行为。通过对桥箔区域两端的电流-电压进行实验测量，对模拟结果进行了验证。研究结果表明，桥箔表面存在通孔缺陷会导致电爆炸时间提前，桥箔的转换效率降低。对有缺陷的桥箔和无缺陷的铜箔进行了性能比较。结果表明，半径为20μm的通孔缺陷会使爆炸时间提前1ns，能量转换效率降低1.52%。同样，半径为50μm的通孔缺陷会使爆炸时间提前51ns，能量转换效率降低13.96%。这些发现凸显了表面缺陷对电爆炸特性的不利影响，强调了尽量减少缺陷以提高其性能的重要性。
