Abstract
We have evaluated magnetic field penetrations into commercial Bi2223 wires fabricated by high-pressure sintering process. Magneto-optical imaging with high-spatial resolution has been applied for that purpose. It is found that there are inhomogeneous couplings between filaments, which can lead to inhomogeneous and complicated current flow in the wire. We also found defects running oblique to the filaments, possibly created during the rolling process of the wire.
Original language | English |
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Pages (from-to) | 65-68 |
Number of pages | 4 |
Journal | Physica C: Superconductivity and its applications |
Volume | 504 |
DOIs | |
Publication status | Published - 2014 Sept 15 |
Externally published | Yes |
Keywords
- Bi2223
- Critical current density
- Magneto-optical imaging
- Superconducting wires
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering