2023年8月
BaMO3 (M = Zr, Hf) Doped REBCO Tapes Fabricated by Fluorine-Free MOD
IEEE Transactions on Applied Superconductivity
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- 巻
- 33
- 号
- 5
- 開始ページ
- 6600205
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1109/TASC.2022.3233807
- 出版者・発行元
- Institute of Electrical and Electronics Engineers (IEEE)
Using a low-cost fluorine-free metal organic decomposition (FF-MOD) method, REBCO films with BaMO 3 (BMO, M = Zr, Hf) artificial pinning centers were fabricated. When M elements are conventionally added to the solution, the size of BMO formation depends on the growth conditions. But by adding preformed BMO nanoparticles, the size can be maintained on the nanometer order, meaning the nanoparticles act as effective pinning centers at low temperatures and magnetic fields. Adopting a polycrystallization sintering process enables the BaCO 3 to decompose completely and polycrystalline REBCO films to form prior to REBCO orientation. After final sintering, REBCO orientation can be achieved over a wide temperature range even with the addition of BMO nanoparticles. By utilizing preformed BMO nanoparticles and a polycrystallization sintering process, BMO doped GdBCO over 100 m-long tapes which have a thickness of more than 3 μm can be achieved. This is the first report of 120-meter-long artificial pinned REBCO tapes with I c exceeding 200 A/4 mm width at 77 K, self-field made by the FF-MOD method.
- リンク情報
- ID情報
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- DOI : 10.1109/TASC.2022.3233807
- ISSN : 1051-8223
- eISSN : 1558-2515
- eISSN : 2378-7074
- ORCIDのPut Code : 125827346