書誌事項
- タイトル別名
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- The Control of Microstructures for High-<I>J</I><SUB>C</SUB> Bi-2212/Ag Tapes
- Bi-2212/Ag線材における高Jc化のための組織制御
- Bi 2212 Ag センザイ ニ オケル コウJcカ ノ タメ ノ ソシキ セイギョ
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抄録
The relationships between a critical current density (JC) and microstructure of Bi-2212/Ag composite tapes prepared by the melt-solidification under a temperature gradient have been investigated. We used a tube furnace with a temperature gradient for the heat treatment. The critical current density (JC) of the order of 4×109 A/m2 at 4.2 K under 10 T were obtained for the tape fabricated under a temperature gradient. We optimized the tape width, temperature gradient and cooling rate in melt-solidification process. The optimum tape width, temperature gradient and cooling rate were 2-4 mm, 200 K/m, and 2 K/h, respectively. JC enhancement of these tapes fabricated by melt-solidification under temperature gradient was attributed the improvement of the c-axis grain alignment, the in-plane texturing near the oxide/silver interface, and large grain size.
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 66 (4), 242-246, 2002
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001206492037120
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- NII論文ID
- 10008832357
- 130007342470
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 6151325
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可