CUED Publications database

Transport properties of Ca-doped YBCO coated conductors

Rutter, NA and Durrell, JH and Mennema, SH and Blamire, MG and MacManus-Driscoll, JL (2005) Transport properties of Ca-doped YBCO coated conductors. In: UNSPECIFIED pp. 2570-2573..

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The authors have doped RABiTS coated conductor tapes with Ca in an attempt to enhance the transport properties. By diffusing Ca into the YBCO film from a CaZrO3 overlayer, the authors have been able to preferentially dope the grain boundaries of the superconductor. Hence it has been possible to obtain doped tapes which do not have a significantly degraded T-c. The authors have measured the critical currents of doped and undoped samples over a wide range of temperature, magnetic field, and magnetic field angle in order to study the effect of Ca on the grain boundaries. The authors find that doping using short anneal times produces enhanced critical currents in large magnetic fields.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Uncontrolled Keywords: calcium grain boundaries yba2cu3o7-delta coated conductors critical currents angle grain-boundaries ca-doping transport measurements
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:04
Last Modified: 22 May 2018 06:24