材料科学
合金
介电强度
电介质
真空电弧
冶金
液相
相(物质)
电弧熔炼
分析化学(期刊)
复合材料
等离子体
化学
热力学
色谱法
物理
光电子学
有机化学
量子力学
作者
Xin Wei,Demei Yu,Zhanbo Sun,Zhimao Yang,Xiaoping Song,Bingjun Ding
出处
期刊:Vacuum
[Elsevier BV]
日期:2014-07-19
卷期号:109: 162-165
被引量:19
标识
DOI:10.1016/j.vacuum.2014.07.006
摘要
The Cr–Ni and Cu–Cr–Ni alloys were prepared and their dielectric strengths were tested in a vacuum chamber. The experimental results showed that the Cr95Ni5 (at.%) alloy prepared by vacuum arc melting could strengthen the dielectric strength of Cr by 130%, and the addition of the Cr–Ni alloy powders could more obviously improve the dielectric strength of the Cu55Cr45 alloy than that of Ni. The dielectric strength of Cu (Cr95Ni5)(Cu = 55, Cr95Ni5 = 45, at.%) was higher than that of commercial Cu55Cr45 alloys and improved by 61%. The results revealed that the liquid phase separation took place in the Cu–Cr–Ni alloys during the vacuum breakdown. The Ni addition could restrain the liquid phase separation of the Cu–Cr alloys and refine the Cr particles.
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