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Capacité de transport et de limitation du courant des matériaux YBaCuO texturés*

Published online by Cambridge University Press:  15 January 1998

L. Porcar*
Affiliation:
Schneider Electric S.A. Usine A, rue Volta, 38050 Grenoble Cedex 9, France
D. Bourgault
Affiliation:
CNRS-EPM/Matformag, B.P. 166, 38042 Grenoble Cedex 09, France
O. Belmont
Affiliation:
Schneider Electric S.A. Usine A, rue Volta, 38050 Grenoble Cedex 9, France
J. G. Noudem
Affiliation:
Schneider Electric S.A. Usine A, rue Volta, 38050 Grenoble Cedex 9, France
J. M. Barbut
Affiliation:
Schneider Electric S.A. Usine A, rue Volta, 38050 Grenoble Cedex 9, France
M. Barrault
Affiliation:
Schneider Electric S.A. Usine A, rue Volta, 38050 Grenoble Cedex 9, France
P. Tixador
Affiliation:
CNRS-CRTBT/LEG, B.P. 166, 38042 Grenoble Cedex 09, France
X. Chaud
Affiliation:
CNRS-EPM/Matformag, B.P. 166, 38042 Grenoble Cedex 09, France
R. Tournier
Affiliation:
CNRS-EPM/Matformag, B.P. 166, 38042 Grenoble Cedex 09, France
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Abstract

Afin de déterminer la capacité à limiter le courant du composé ${\rm Y}_1{\rm Ba}_2{\rm Cu}_3{\rm O}_{7-\delta}$ texturé, des études en courants de transport élevés, en régime pulsé et en régime permanent alternatif, ont été menées. Il en résulte que YBaCuO possède une forte capacité de transport du courant en régime pulsé (9000 A soit 23 000 $\ {\rm A} / {\rm cm}^2$ dans un barreau de 4 cm de long) et en régime permanent alternatif (3000 A soit 7800 $\ {\rm A} / {\rm cm}^2$) et que le retour à l'état normal par dépassement du courant critique est très abrupt.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 1998

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Footnotes

*

Le contenu de cet article a été présenté aux 4es journées d'étude SEE "Matériaux Supraconducteurs à haute Tc" de Caen, les 26 et 27 mars 1997.

References

* Le contenu de cet article a été présenté aux 4es journées d'étude SEE "Matériaux Supraconducteurs à haute T c" de Caen, les 26 et 27 mars 1997.

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