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INFLUENCE OF Re ON THE THERMO-ELECTRON EMISSION FROM THORIATED W CATHODE DURING Re DEPOSITION B

C. P. Lungu1,* , I. Mustata1, A. M. Lungu1, V. Zaroschi1, G. Musa1, I. Iwanaga2, R. Tanaka2, Y. Matsumura2, H. Tanaka2, T. Oi2, K. Fujita2, K. Iwasaki2

Affiliation

  1. National Institute for Lasers, Plasma and Radiation Physics, Magurele-Bucharest, Romania
  2. Japan Ultra-high Temperature Materials Research Institute, Ube, Yamaguchi, Japan

Abstract

Since Re deposition was found to be very difficult because of its high melting and boiling points, low vapor pressure and high work function, influence of Re on the thermo-electron emission during Re deposition by TVA method was studied experimentally and theoretically. The problems were successfully solved to obtain uniform Re coatings at a deposition rate of more than 6 m/h..

Keywords

Re, Thermionic vacuum arc, Plasma, Thermo-electron emission, Gases pollution control, Corona plasmas, Repetitive high-voltage pulses.

Submitted at: May 6, 2005
Accepted at: Sept. 22, 2005

Citation

C. P. Lungu, I. Mustata, A. M. Lungu, V. Zaroschi, G. Musa, I. Iwanaga, R. Tanaka, Y. Matsumura, H. Tanaka, T. Oi, K. Fujita, K. Iwasaki, INFLUENCE OF Re ON THE THERMO-ELECTRON EMISSION FROM THORIATED W CATHODE DURING Re DEPOSITION B, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 5, pp. 2513-2519 (2005)