Variations of the Strain Effect on Critical Current in REBCO Coated Conductor Tapes Depending on Test Probes
| Autor: | Hyung-Seop Shin, Mark Angelo Diaz |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Superconductivity
Materials science Strain (chemistry) Bending Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Conductor Magnetic field Magnet 0103 physical sciences Strain effect Ultimate tensile strength Electrical and Electronic Engineering Composite material 010306 general physics |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 29:1-5 |
| ISSN: | 2378-7074 1051-8223 |
| DOI: | 10.1109/tasc.2019.2900976 |
| Popis: | In practical application of the 2G CC tapes, the characteristic I c response with respect to strain and magnetic field is important in designing superconducting devices including magnets and coils. In order to elucidate the strain effect on the critical current, I c, along the longitudinal direction of CC tapes, three different kinds of test rigs or methods were employed: a springboard bending beam holder which can apply continuously both tensile and compressive strains to the CC sample attached on the holder, a Goldacker-type bending test rig without any holder to support the sample during bending, and uniaxial tension test method. The strain effect on the I c varied depending on how the strain was applied, but all the probes verified that excessive straining on the REBCO CC tapes does affect the I c resulting in a significant degradation. The strain effect on I c under low magnetic field in both tensile and compressive strain region was examined using the springboard bending beam and a pair of Nd permanent magnets. |
| Databáze: | OpenAIRE |
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