Development of a forced-cooled superconducting coil with high average current density (DPC-TJ)
| Autor: | Y. Sanada, Masataka Nishi, A. Tanaka, Mamoru Shimada, Masamitsu Naganuma, Takataro Hamajima, Y. Takahashi, H. Shiraki, Hirokazu Tsuji, Kouichi Koizumi, Susumu Shimamoto, Hideo Nakajima, M. Shibui, T. Fujioka, T. Ando |
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| Rok vydání: | 1989 |
| Předmět: |
Superconductivity
Residual resistivity Nuclear magnetic resonance Materials science Electromagnetic coil Electrical resistivity and conductivity Superconducting magnetic energy storage Superconducting magnet Electrical and Electronic Engineering Electric current Composite material Current density Electronic Optical and Magnetic Materials |
| Zdroj: | IEEE Transactions on Magnetics. 25:1721-1724 |
| ISSN: | 0018-9464 |
| DOI: | 10.1109/20.92633 |
| Popis: | A forced-cooled superconducting coil (DPC-TJ) using a double-walled cable-in-conduit, the so-called Performed Armor CICC, has been developed. The DPC-TJ is an advanced coil with an average current density of 40 A/mm/sup 2/, operating current of 24 kA, and field of 12 T. The DPC-TJ coil has several advantages such as mechanical rigidity, negligible degradation of critical current, sound electrical insulation, and excellent winding tolerance compared with a conventional forced-cooled coil. A superconducting strand was developed with the aim of improving the critical current density and resistivity. The resulting Nb-tube-processed (NbTi)/sub 3/Sn strand fulfils the requirement that the critical current density be more than 600 A/mm/sup 2/ at 12 T and the RRR (residual resistivity ratio) be higher than 50. > |
| Databáze: | OpenAIRE |
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