Significant improvement of trapped flux in bulk Gd–Ba–Cu–O grains fabricated by a modified top-seeded melt growth process
書誌事項
- 公開日
- 2012-11-08
- 資源種別
- journal article
- DOI
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- 10.1088/0953-2048/26/1/015003
- 公開者
- IOP Publishing
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説明
The seeded infiltration and growth of Gd–Ba–Cu–O single grains using a YBa2Cu3Oy pressed pellet as the liquid source has successfully solved the liquid source leakage problem even at Tmax ~ 1100 °C. As a development of this process, a simple but essential modification to insert a liquid source pellet at the bottom of the pre-form was made to the top-seeded melt growth process. The present method resulted in a significant enhancement of the trapped flux density of the Gd–Ba–Cu–O grains. In the growth kinetics, we interpreted that the enriched liquid source surrounding the growth front leads to a more uniform distribution of Gd2BaCuO5 in the matrix and an enlarged c-orientation growth area, which help suppress the formation of high angle grain boundaries. Furthermore, we demonstrated that the present method is of great advantage in multi-seeded processes.
International audience
収録刊行物
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- Superconductor Science and Technology
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Superconductor Science and Technology 26 (1), 015003-, 2012-11-08
IOP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360283692417455104
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- ISSN
- 13616668
- 09532048
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
