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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Banno, N. Takeuchi, T. Tagawa, K. Itoh, K. Wada, H. Nakagawa, K. |
| Copyright Year | 2002 |
| Abstract | Magnetic field and temperature dependences of J/sub c/ are measured for rapid quenched and transformed Nb/sub 3/Al multifilamentary wires that were fabricated by the Jelly-roll (JR) and Rod-in-tube (RIT) processes. The J/sub c/ in the transformed JR wire was much larger than that of conventional JR processed wires and also the transformed RIT processed wire. The scaling curve for the J/sub c/-B-T characteristics are given by a temperature scaling law, which agrees well with the experimental results in wide temperature and field ranges. The scaling curve enables us to evaluate J/sub c/ at low magnetic field and low temperature, for instance, J/sub c/ at 10 T, 4.2 K is estimated as 4700 A/mm/sup 2/. The main pinning source would be grain boundaries, because of the small grain size (several tens nm) and its high density. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 1026 |
| Ending Page | 1029 |
| Page Count | 4 |
| File Size | 356782 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 10 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Temperature dependence Critical current density Niobium Wires Conductors Magnetic field measurement Current measurement Temperature measurement Superconducting magnets Density measurement |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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