Investigation of the argon arc binding to the lanthanated tungsten cathode

被引:16
作者
Gadzhiev, M. Kh. [1 ]
Sargsyan, M. A. [1 ]
Tereshonok, D. V. [1 ]
Tyuftyaev, A. S. [1 ]
机构
[1] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia
基金
俄罗斯科学基金会;
关键词
D O I
10.1209/0295-5075/111/25001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Pyrometric and spectroscopic investigations of lanthanated tungsten cathode in argon arc plasma discharge at atmospheric pressure are reported. The distribution of the surface cathode temperature was measured. Calculations and estimates of the emission current density are performed. Experimental data of the total current density are compared with the obtained results of estimation. The possible reasons for the discrepancy between the experimental and theoretical values of the total current were discussed. Copyright (C) EPLA, 2015
引用
收藏
页数:4
相关论文
共 16 条
[1]   Simulation of the layer of non-equilibrium ionization in a high-pressure argon plasma with multiply-charged ions [J].
Almeida, RMS ;
Benilov, MS ;
Naidis, GV .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2000, 33 (08) :960-967
[2]   Peculiarities of volt-ampere characteristics of a tungsten cathode in a high-current arc [J].
Bakhmet'ev, K. A. ;
Konovalov, A. V. ;
Sinkevich, O. A. ;
Samoilov, I. S. .
HIGH TEMPERATURE, 2011, 49 (02) :168-177
[3]  
Belevtsev A. A., 2013, HIGH TEMP-USSR, V51, P652
[4]   Understanding and modelling plasma-electrode interaction in high-pressure arc discharges: a review [J].
Benilov, M. S. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (14)
[5]   3D modelling of heating of thermionic cathodes by high-pressure arc plasmas [J].
Benilov, MS ;
Carpaij, M ;
Cunha, MD .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (10) :2124-2134
[6]  
Gerhard Leichtfried, 2002, 1 EUR M SCI TECHN LI, V1, P1
[7]   Investigation of temperature fields on the surface of tungsten cathode of a high-current arc using a high-speed matrix [J].
Goryachev, S. V. ;
Isakaev, E. Kh. ;
Myasnikov, M. I. ;
Chinnov, V. F. .
HIGH TEMPERATURE, 2008, 46 (06) :752-756
[8]   Experimental determination of the temperature dependence of steel thermal conductivity [J].
Il'ichev, M. V. ;
Mordynskii, V. B. ;
Tereshonok, D. V. ;
Tyuftyaev, A. S. ;
Chikunov, S. E. .
HIGH TEMPERATURE, 2015, 53 (02) :193-198
[9]   Low temperature onset for thermionic emitters based on nitrogen incorporated UNCD films [J].
Koeck, Franz A. M. ;
Nemanich, Robert J. .
DIAMOND AND RELATED MATERIALS, 2009, 18 (2-3) :232-234
[10]   Experimental stark widths and shifts for spectral lines of neutral and ionized atoms (A critical review of selected data for the period 1989 through 2000) [J].
Konjevic, N ;
Lesage, A ;
Fuhr, JR ;
Wiese, WL .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 2002, 31 (03) :819-927