کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5457971 1515954 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
RE-W cathode discharge properties in N2 and CO2 atmosphere at high temperature up to 1000 °C
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
RE-W cathode discharge properties in N2 and CO2 atmosphere at high temperature up to 1000 °C
چکیده انگلیسی
Rare earth-tungsten (RE-W) cathode discharge properties in N2 and CO2 atmosphere at high temperatures were studied experimentally. The effect of temperature, atmosphere, cathode material and diameter on discharge current and corona inception voltage were investigated. The results show that the discharge current is larger and the corona inception voltage is lower in N2 atmosphere than in CO2 atmosphere. The range of the corona discharge voltage is narrower in CO2 atmosphere. When the temperature is above 900 °C, the corona discharge becomes very unstable. As the temperature increases, the discharge current increases obviously and the corona inception voltage decreases significantly. Besides, the discharge current increases and the corona inception voltage decreases with the decrease of cathode diameter. The corona inception voltage also decreases significantly with the decrease of work function of different cathodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 64, April 2017, Pages 52-59
نویسندگان
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