In situ measurements of electrode work functions in free-burning arcs during operation at atmospheric pressure

Journal of Physics D: Applied Physics

Volumn 38, Issue 1, 2005, Pages 29-35

  Tanaka, Manabu ^a   Ushio, Masao ^a   Ikeuchi, Mitsuru ^b   Kagebayashi, Yoshiro ^b  

^a OSAKA UNIVERSITY   (Japan)

^b USHIO INC   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL VAPOR DEPOSITION; ELECTRODES; ELECTRON EMISSION; PHOTOELECTRICITY; THERMAL CONDUCTIVITY; THERMIONIC CATHODES; TUNGSTEN;

FREE-BURNING ARCS; IN SITU MEASUREMENTS; PULSE LASER SYSTEM; THERMAL SPRAYING;

ATMOSPHERIC PRESSURE;

EID: 11844299033     PISSN: 00223727     EISSN: None     Source Type: Journal    
DOI: 10.1088/0022-3727/38/1/007     Document Type: Article

References (20)

1. Boulos M I, Fauchais P and Pfender E 1994 Thermal Plasmas (New York: Plenum)
2. Lancaster J F (ed) 1984 The Physics of Welding (Oxford: Pergamon)
3. Sadek A A, Ushio M and Matsuda F 1990 Effect of rare earth metal oxide additions to tungsten electrodes Metall. Trans. A 21 3221
4. Ushio M, Sadek A A and Matsuda F 1991 Comparison of temperature and work function measurements obtained with different GTA electrodes Plasma Chem. Plasma Process, 11 81
5. Hirsh M N and Oskam H J (ed) 1978 Gaseous electronics Electric Arcs and Arc Gas Heaters ed E Pfender (New York: Acadamic) chapter 5
6. Tanaka M and Ushio M 1999 Plasma state in free-burning argon arc and its effect on anode heat transfer J. Phys. D: Appl. Phys. 32 1153
7. Tanaka M, Terasaki H, Ushio M and Lowke J J 2002 A unified numerical modeling of stationary tungsten-inert-gas welding process Metall. Trans. A 33 2043
8. Hsu K C and Pfender E 1983 Analysis of the cathode region of a free-burning high intensity argon arc J. Appl. Phys. 54 3818
9. Ushio M, Fan D and Tanaka M 1994 A method of estimating the space-charge voltage drop for thermionic arc cathodes J. Phys. D: Appl. Phys. 27 561
10. Fomenko V S 1970 Emission Properties of Materials (Kiev: Naukova Dumka) (in Russian)
11. Michaelson H B 1977 The work function of the elements and its periodicity J. Appl. Phys. 48 4729
12. Tanaka M, Terasaki H, Ushio M and Lowke J J 2003 Numerical study of a free-burning argon arc with anode melting Plasma Chem. Plasma Process. 23 585
13. Ushio M, Tanaka M and Lowke J J 2004 Anode melting from free-burning argon arcs IEEE Trans. Plasma Sci. 32 108
14. Schlager W and Neiger M 2000 A novel experimental method for in situ diagnostics of electrode workfunctions in high-pressure gas discharge lamps during operation J. Phys. D: Appl. Phys. 33 3083
15. Fowler R H 1931 The analysis of photoelectrical sensitivity curves for clean metals at various temperatures Phys. Rev. 38 45
16. Touloukian Y S and Dewitt D P 1970 Thermal Radiative Properties - Metallic Elements and Alloys (New York: IFI/Plenum)
17. Haidar J and Farmer A J D 1993 A method for the measurement of the cathode surface temperature for a high-current free-burning arc Rev. Sci. Instrum. 64 542
18. Haidar J and Farmer A J D 1995 Surface temperature measurements for tungsten-based cathodes of high-current free-burning arcs J. Phys. D: Appl. Phys. 28 2089
19. Zhou X and Heberlein J 1998 An experimental investigation of factors affecting arc-cathode erosion J. Phys. D: Appl. Phys. 31 2577
20. Tsukada M 1987 Work Function - Series of One Point in Physics (Tokyo: Kyoritsu Shuppan) (in Japanese)