R P Aloysius et al 2001 Supercond. Sci. Technol. 14 85 doi:10.1088/0953-2048/14/2/305
R P Aloysius, A Sobha, P Guruswamy and U Syamaprasad1
Show affiliationsThe dependence of Ic on the bend strain and tensile stress characteristics of (Bi, Pb)-2223/Ag-Cu alloy sheathed tapes with varying Cu composition in the sheath has been studied in both mono- and multifilamentary configurations. The irreversible stain (εr) and the critical stress (σc) were found to improve as the level of Cu doping in the sheath increases. εr and σc were found to be about twice as large for the 9 at% Cu doped sample in both mono- and multifilamentary cases compared to the corresponding pure samples. The multifilamentary tapes were found to endure more strains and stresses due to their fine filament structure and low fill factor of the superconductor core. The degradation of Ic above σc was found to be rapid, while that for strains above εr was gradual, retaining a significant amount of Ic even after high values of applied strain.
84.71.Mn Superconducting wires, fibers, and tapes
74.25.Ld Mechanical and acoustical properties, elasticity, and ultrasonic attenuation
74.70.Ad Metals; alloys and binary compounds (including A15, MgB2, etc.)
Issue 2 (February 2001)
Received 2 August 2000, in final form 14 November 2000
R P Aloysius et al 2001 Supercond. Sci. Technol. 14 85
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