高电压技术2012，Vol.38Issue(7)：1719-1725,7.
高压短脉冲作用下岩石击穿特性的实验研究
Experimental Research on Rock Breakdown Under Short High-voltage Pulse
摘要
Abstract
In order to develop an efficient plasma drill, we experimentally researched rock breakdown under short high-voltage pulses in deionized water. Rocks were placed between a needle high-voltage electrode and a plate grounded electrode. The relationship .between breakdown probability and electrical strength was evaluated by applying various voltage levels to the rocks. The results show that the electrical breakdown strength of yellow sandstone with 7% porosity is 70 kV/cm, and for white marble with 0.8~ porosity it is 160 kV/cm. The porosity has a great influence on the breakdown strength. Moreover, experimental results show that the breakdown strength drops with increasing thickness of the rock.关键词
短脉冲/电击穿/岩石/去离子水/电击穿场强/等离子体钻机Key words
short pulse/electrical breakdown/rock/deionized water/electrical breakdown strength/plasma drill分类
信息技术与安全科学引用本文复制引用
章志成,裴彦良,刘振,王揆洋,刘保华,闫克平..高压短脉冲作用下岩石击穿特性的实验研究[J].高电压技术,2012,38(7):1719-1725,7.基金项目
国家高技术研究发展计划（863计划）（2007AA092321）. （）
