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Published Article / I07/99/P-545 ENY-ARTICLE-2008-049

Field emission current from high-Tc ceramic cathodes

Ziaja, J (Wroclaw University of Technology, Poland) ; Zylka, P (Wroclaw University of Technology, Poland)


Abstract: In this work the result of emission phenomena investigations are presented. Experiments were conducted for high Tc, superconducting ceramics YBaCuO and BiPbSrCaCuO. Fowler- Nordheim characteristics and the current-temperature dependencies were observed for superconducting and non-superconducting cathodes. It was noticed that the emission current value abruptly changed in the vicinity of the critical temperature. All measurements were done in a vacuum chamber at l0-6 Pa. X-ray diffraction analysis and scanning electron microscopy examination of the ceramic electrodes were performed also.

Keyword(s): superconducting ceramics ; emission
Note: IEEE Trans. Dielectr. Electr. Insul. 1999 Vol. 6 No. 4 pp. 450-454.

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Cited by: try citation search for ENY-ARTICLE-2008-049; I07/99/P-545

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