Investigation on Surface Insulation Strength of Machinable Ceramic Material under Pulsed Voltage in Vacuum Zhang, Guan-Jun ; Zhao, Wen-Bin ; Ma, Xin-Pei ; Li, Guang-Xin ; Ma, Kui ; Zheng, Nan ; Yan, Zhang Abstract Publication: Journal of the Vacuum Society of Japan Pub Date: 2007 DOI: 10.3131/jvsj.50.332 Bibcode: 2007JVSJ...50..332Z