高电压技术2012，Vol.38Issue(7)：1595-1600,6.
用于制备纳米粉体的电爆炸金属丝演化过程诊断及电爆炸模式分析
Study on the Evolution of Wire Explosion in Ambient Gas for Nano-powder Production
摘要
Abstract
With a Mach-Zehnder interferometer, the evolution of titanium wire explosion in ambient gas for nano- powder production was investigated to better understand the mechanisms of wire explosion and nano-powder growth. We find that there are two exploding modes of titanium wire explosion under different gas pressures： the multi-burst mode and the one-burst mode. When the air pressure is equal to or below 10 kPa, the early flashover discharge along the exploding wire will cease the Joule heating of wire and result in lower deposition energy less than the energy of whole wire vaporization, and the wire can not explode totally within one single burst. However, when the air pressure exceeds 50 kPa, the moment of flashover discharge along the exploding wire will be delayed, the deposition energy into the wire will be close to or higher than the energy of the whole wire vaporization, and the wire will explode within one single burst.关键词
丝爆/纳米粉体/沉积能量/激光干涉/沿面击穿/电子密度Key words
electrical wire explosion/nano-powder/deposition energy/laser interferometer/flashover/electrondensity分类
天文与地球科学引用本文复制引用
邹晓兵,毛志国,王新新,江伟华..用于制备纳米粉体的电爆炸金属丝演化过程诊断及电爆炸模式分析[J].高电压技术,2012,38(7):1595-1600,6.基金项目
国家自然科学基金（50677034）. （）
