Fabrication of ${\rm Gd}_{1}{\rm Ba}_{2}{\rm Cu}_{3}{\rm O}_{\rm x}$ Coated Conductors for HTS Cables
| Autor: | Kenji Abiru, Yuki Shingai, Kazuya Ohmatsu, Masaya Konishi |
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| Rok vydání: | 2011 |
| Předmět: |
Fabrication
High-temperature superconductivity Materials science business.industry Condensed Matter Physics Electron beam physical vapor deposition Evaporation (deposition) Electronic Optical and Magnetic Materials law.invention Pulsed laser deposition law Optoelectronics Electrical and Electronic Engineering business Electrical conductor Layer (electronics) Deposition (law) |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 21:2941-2944 |
| ISSN: | 1558-2515 1051-8223 |
| Popis: | We have been fabricating Gd1Ba2Cu3Ox (GdBCO) coated conductors (CCs) on textured clad-type substrates by using pulsed laser deposition (PLD) method for high temperature superconducting (HTS) power cables. In this project, numerous numbers of CCs are required for fabricating a 66 kV class, 3-in-One HTS cable and for the evaluation of its properties. In order to achieve this, it is important to ensure the stable production and the high-throughput manufacturing. In this work, we have newly installed a high power laser of 300 W for the PLD equipment, which has 1.66 times higher power than the previous one. As a result, the stability of manufacturing and the production rate were greatly improved. In addition, we have adopted a wide tape approach using 30 mm width substrates to increase the throughput. Moreover, we have optimized deposition condition for a seed layer by electron beam (EB) evaporation method, then the maximum Ic value for a short sample has achieved 497 A/cm at 77 K in the self-field. With this improved process, long GdBCO tapes with high Ic have been successfully fabricated. |
| Databáze: | OpenAIRE |
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