Post-Synthesis Enhancement of Critical Current in Commercial Grade YBCO Coated Conductors
ORAL
Abstract
We present critical current measurements on a series of commercial grade YBCO coated conductors. These coated conductors contain a variety of inherent defects such as nanoparticle inclusions, twin boundaries, dislocations and self-aligned nanorods. In addition to these inherent defects, we induce new defects via low and high-energy particle irradiation in the form of point, cluster and columnar defects to probe the additive/non-additive nature of vortex pinning in these coated conductors. We show that commercial grade coated conductors can be further improved by a combination of post-synthesis induced defect landscapes and annealing schedules.
*This work was supported by the Center for Emergent Superconductivity, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences.
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Presenters
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Wai-Kwong Kwok
- Argonne National Lab.
- Materials Science Division, Argonne National laboratory
- Argonne Natl Lab
- Argonne National Laboratory
- Materials Science Division, Argonne National Laboratory
- Materials Science Division, Argonne National Lab
- Material Science Division, Argonne National Laboratory