Melt-processed YBCO with Pt or Ce additions: comparison of pinning behavior
Creators
- 1. Leibniz Institut fuer Festkoerper-und Werkstofforschung Dresden, Postfach 270116, D-01171 Dresden (Germany)
- 2. International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-529 Wroclaw (Poland)
Description
The critical current density and magnetic relaxation as a function of temperature and magnetic field are compared for the melt-processed YBCO with Ce or Pt additions. The pinning parameters estimated show an enhancement of current density, and consequently pinning force in the presence of Ce. The difference in pinning capabilities between the Ce- and Pt-added melt-processed YBCO samples is attributed to inherent differences in microstructure. It was observed that in the Ce-added sample the size of the 211 particles can be reduced to 200-500 nm, while in the melt-processed sample with Pt additions the size of the 211 precipitates is usually greater. The obtained results suggest that the benefits of melt-processed YBCO with Ce additions come from the increase of the effective pinning area of the refined 211 precipitates
Additional details
Identifiers
- DOI
- 10.1016/j.physc.2005.03.019;
- PII
- S0921-4534(05)00122-X;
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 423
- Journal Issue
- 1-2
- Journal Page Range
- p. 22-28
- ISSN
- 0921-4534
- CODEN
- PHYCE6
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37111822
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM COMPOUNDS; CERIUM ADDITIONS; COMPARATIVE EVALUATIONS; CRITICAL CURRENT; CUPRATES; CURRENT DENSITY; HIGH-TC SUPERCONDUCTORS; MAGNETIC FIELDS; MAGNETIC FLUX; MICROSTRUCTURE; PARTICLES; PLATINUM ADDITIONS; RELAXATION; TEMPERATURE DEPENDENCE; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; CERIUM ALLOYS; COPPER COMPOUNDS; CURRENTS; ELECTRIC CURRENTS; EVALUATION; OXYGEN COMPOUNDS; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.