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Measurements on Subscale Y-Ba-Cu-O Racetrack Coils at 77 K and Self-Field
- Source :
- IEEE Transactions on Applied Superconductivity. 20:368-372
- Publication Year :
- 2010
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2010.
-
Abstract
- YBa2Cu3O7-? (YBCO) tapes carry significant amount of current at fields beyond the limit of Nb-based conductors. This makes the YBCO tapes a possible conductor candidate for insert magnets to increase the bore field of Nb3Sn high-field dipoles. As an initial step of the YBCO insert technology development, two subscale racetrack coils were wound using Kapton-insulated commercial YBCO tapes. Both coils had two layers; one had 3 turns in each layer and the other 10 turns. The coils were supported by G10 side rails and waxed strips and not impregnated. The critical current of the coils was measured at 77 K and self-field. A 2D model considering the magnetic-field dependence of the critical current was used to estimate the expected critical current. The measured results show that both coils reached 80%-95% of the expected values, indicating the feasibility of the design concept and fabrication process.
- Subjects :
- Superconductivity
Fabrication
Materials science
Niobium
chemistry.chemical_element
STRIPS
Yttrium barium copper oxide
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
law.invention
Conductor
chemistry.chemical_compound
Nuclear magnetic resonance
chemistry
law
Magnet
Electrical and Electronic Engineering
Composite material
Electrical conductor
Subjects
Details
- ISSN :
- 15582515 and 10518223
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Applied Superconductivity
- Accession number :
- edsair.doi...........5581b3c1f7bf454a8d6d3f8bdf5b40af