Dy-Ba-Cu-O系バルク超伝導材料の捕捉磁場特性に及ぼすDy<SUB>2</SUB>BaCuO<SUB>5</SUB>添加量の影響

• 成木 紳也

  財団法人　国際超電導産業技術研究センター超電導工学研究所

• 坂井 直道

  財団法人　国際超電導産業技術研究センター超電導工学研究所

• 村上 雅人

  財団法人　国際超電導産業技術研究センター超電導工学研究所

書誌事項

タイトル別名

• Effect of Dy<SUB>2</SUB>BaCuO<SUB>5</SUB> Addition on Trapped Magnetic Fields in Dy-Ba-Cu-O Bulk Superconductors
• Dy-Ba-Cu-O系バルク超伝導材料の捕捉磁場特性に及ぼすDy2BaCuO5添加量の影響
• Dy Ba Cu Oケイ バルク チョウデンドウ ザイリョウ ノ ホソク ジバ トクセイ ニ オヨボス Dy2BaCuO5 テンカリョウ ノ エイキョウ

抄録

The effect of Dy₂BaCuO₅ (Dy211) contents on the field trapping properties of Ag-added DyBa₂Cu₃O_y (Dy123) single domain bulk has been investigated. The Dy-Ba-Cu-O/Ag bulks 32 mm in diameter with different Dy211 contents were fabricated in air with the top-seeded melt-growth method using NdBa₂Cu₃O₇ seed crystal. The trapped magnetic fields were measured as a function of external field and compared with the J_c-B properties, in that a similar field dependency was observed. In the case of the Dy123 bulk with excess 5 mol% Dy211, the peak was found at around 0.5-1.5 T of external field in the trapped field measurement at 77 K. The value of trapped field was 1.2 T at the peak field. This result reflects the secondary peak effect in J_c-B properties of the bulk samples. On the other hand, the trapped field of Dy123 bulk with excess 40 mol% of Dy211 exhibited 1.4 T when the applied field was removed. This value monotonously decreased with increasing external field, since this sample showed no secondary peak effect in J_c-B properties.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 66 (4), 315-319, 2002

  公益社団法人 日本金属学会

キーワード

• superconductor
• DyBa<SUB>2</SUB>Cu<SUB>3</SUB>O<I><SUB>y</SUB></I>
• Dy<SUB>2</SUB>BaCuO<SUB>5</SUB>
• melt-growth
• trapped magnetic field
• critical current density
• peak effect

詳細情報

• CRID: 1390001206492050304
• NII論文ID: 130007342480
• NII論文ID: 10008832583
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.66.4_315
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 6151557
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6151557
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/66/4/66_4_315/_pdf
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可