Microstructure, resistivity and critical currents of Ag-Bi/Pb(2223) tapes

Article Article scientifique Article Microstructure, resistivity and critical currents of Ag-Bi/Pb(2223) tapes eng 1993 author Hensel Bernhard 27670 author Grivel Jean-Claude 28121 author Jeremie Andréa 27332 author Perin A. author Pollini A. author Liniger Francis 26170 author Flukiger René-Louis 25218 1139-1142 10.1109/77.233353 1051-8223 http://ieeexplore.ieee.org/document/233353/ The temperature and field dependences of critical current density, j/sub c/, in Ag-Bi/Pb(2223) tapes, prepared by the standard powder-in-tube method, have been measured between 4.2 K and 110 K in magnetic fields up to 15 T. The j/sub c/'s reproducibly reached values up to 20000 A/cm/sup 2/ at 77.35 K in zero magnetic field. After stripping or etching away the Ag-sheath, the microstructure of the superconductor core has been investigated by SEM, EDX and X-ray diffraction. On etched samples the resistance of the Bi(2223) filament has been measured. A value below 500 mu Omega -cm has been found for the resistivity at 130 K. Dewey 500.2 33 Département de physique de la matière quantique 131 false IEEE Transactions on Applied Superconductivity 3 1 3703696b-a9f2-42ce-9ed6-5e89b79df048 Article (Published version) Restricted Scan_UNIGE_1421_001.pdf 2829557 application/pdf restrictedAccess Faculté des sciences / Section de physique / Département de physique de la matière quantique

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Microstructure, resistivity and critical currents of Ag-Bi/Pb(2223) tapes	IEEE Transactions on Applied Superconductivity			1993	418	0

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Liniger, Francis