摘要
采用热压烧结法制备出 Ｗ－纳米 ＴｈＯ２新型阴极材料，研究了材料的电学性能该阴极材 料的临界起弧电压比传统材料降低 ２０％；引弧较为容易和平稳，其电弧静特性曲线下降，电子发射能力增 强。
A novel cathode, fine grain tungsten activated with nano-ThO2, was 'fabricated by Hot-Press sintering. In comparison to the conventional W-ThO2 electrode, the characteristics for TIG was investigated. The results show that for this cathode the striking voltage has decreased by 20% and the arc starts easy and stably. In addition, the static characteristics of arc decline and the ability of electron emission is enhanced.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2000年第B01期19-22,共4页
Chinese Journal of Materials Research
基金
国家自然科学基金! 59771021
