Title :
The effect of electrode material and additives on the breakdown strength of a vacuum gap
Author :
Wang, Yaping ; Yang, Zhimao ; Ding, Bingjun ; Zhou, Jingen
Author_Institution :
Dept. of Mater. Sci. & Eng., Xi´´an Jiaotong Univ., China
fDate :
4/1/1998 12:00:00 AM
Abstract :
The influence of additions of tungsten and cobalt into CuCr contact materials on the dielectric strength of a vacuum gap is investigated. Experimental results show that the dielectric strength increases significantly when the chromium phase in CuCr materials is selectively strengthened. The proper preparation method that determines the distribution of alloying elements is also suggested in this paper
Keywords :
chromium alloys; cobalt alloys; copper alloys; electric strength; electrodes; tungsten alloys; vacuum breakdown; vacuum interrupters; CuCrWCo; additives; alloying element distribution; breakdown strength; dielectric strength; electrode material; preparation method; vacuum gap; vacuum interrupters; Additives; Anodes; Cathodes; Chromium; Contacts; Dielectric materials; Electrodes; Furnaces; Powders; Vacuum breakdown;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
