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Demonstration of Excellent J(c) Performance in (AE,Na)Fe2As2 (AE: Sr, Ba) PIT Wires
https://repo.qst.go.jp/records/77722
https://repo.qst.go.jp/records/77722fd0b3ee7-aa90-47ad-933e-a03100a41d24
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-11-25 | |||||
| タイトル | ||||||
| タイトル | Demonstration of Excellent J(c) Performance in (AE,Na)Fe2As2 (AE: Sr, Ba) PIT Wires | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
tsuyoshi, tamegai
× tsuyoshi, tamegai× takahiro, suwa× daisuke, miyawaki× sunseng, pyon× Takano, Katsutoshi× Kajitani, Hideki× Koizumi, Norikiyo× satoshi, awaji× Katsutoshi, Takano× Hideki, Kajitani× Norikiyo, Koizumi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Na-substituted 122-type iron-based superconductors were synthesized and fabricated into superconducting tapes and wires. Good J(c) performance of Ag-sheathed Sr0.45Na0.55Fe2As2 pressed tapes was demonstrated, and it was further improved by using AgSn as a sheath material. The improved J(c) characteristics are due to the reduction of the optimum sintering temperature by similar to 100 degrees C, which suppressed the reaction between the sheath and the core. However, the fabrication of good Sr(0.4)5Na(0.55)Fe(2)As(2) round wire using the hot isostatic press method failed, due possibly to the segregation of Na in the core. To avoid the segregation of Na, we fabricated round wires employing (Ba,Na)Fe2As2 rather than underdoped (Sr,Na)Fe2As2. J(c) in Ba0.6Na0.4Fe2As2 round wire processed 700 degrees C under the pressure of 175 MPa reached 1.5 x 10(5) and 2.0 x 10(4) A/cm(2) at self-field and 100 kOe, respectively. These values are more than fifty percent of the largest J(c) in (Ba,K)Fe2As2 round wires, demonstrating the excellent performance of (Ba,Na)Fe2As2 wires. | |||||
| 書誌情報 |
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 巻 29, 号 5, p. 7300605, 発行日 2019-08 |
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| 出版者 | ||||||
| 出版者 | IEEE | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1051-8223 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/TASC.2019.2905159 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://ieeexplore.ieee.org/document/8667380 | |||||
