Slow ‘thermal’ and fast ‘streamer-leader’ breakdown modes in conductive water
Slow ‘thermal’ and fast ‘streamer-leader’ breakdown modes in conductive water
复制标题
DOI：
10.1088/1361-6463/aad428
复制
发表时间：
2018-08
期刊：
影响因子：
--
通讯作者：
V. Panov;L. Vasilyak;S. P. Vetchinin;V. Ya Pecherkin;E. Son
中科院分区：
文献类型：
--
作者：
V. Panov;L. Vasilyak;S. P. Vetchinin;V. Ya Pecherkin;E. Son
对导电水中脉冲电击穿的研究表明，在电导率为 90 S cm−1 时，在 9 至 27 kV 的施加电压范围内，在与针阳极 1 cm 的间隙中，可能有四种不同的击穿模式。在击穿电压为 9 kV 时，会发生缓慢的“热”击穿，等离子体通道传播的平均速度为 5 m s−1；而在最大研究电压 27 kV 下，会发生快速的“流光先导”击穿，通道速度增加三个数量级（高达 7 km s−1）。
Investigation of pulsed electrical breakdown in conductive water has shown that at conductivity of 90 S cm−1 four different modes of breakdown are possible in the range of applied voltage from 9 to 27 kV in 1 cm gap with pin anode. At breakdown voltage of 9 kV, slow ‘thermal’ breakdown with the average speed of plasma channel propagation of 5 m s−1 takes place, while at the maximum studied voltage of 27 kV, fast ‘streamer-leader’ breakdown with the channel speed increased by three orders of magnitude (up to 7 km s−1) develops.