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Abstract

Superconducting composites assigned to operate in magnets under time varying magnetic fields are designed with a restrictive matrix in order to limit losses caused by induced currents to an acceptable level. As a result, stability criteria commonly used for magnet design are not relevant. A general criterion especially devoted to intrinsic stability of mixed matrix composites is given in an analytical form. The influence of the physical properties of materials is studied for comparison with composites with a purely copper matrix. In particular, the presence of a copper shell surrounding the high resistive multifilamentary zone is shown to enhance significantly the stability of these superconducting composites.

Additional information

Authors: MACCIONI P, CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez- Durance (FR);TURCK B, CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez- Durance (FR)
Bibliographic Reference: Report: EUR-CEA-P/EM-90-20 EN (1990) 36 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
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