Optimization of the fabrication process for high trapped field MgB 2 bulks

M. Muralidhar; A. Ishihara; K. Suzuki; Y. Fukumoto; Y. Yamamoto; M. Tomita

doi:10.1016/j.physc.2013.04.012

Optimization of the fabrication process for high trapped field MgB ₂ bulks

M. Muralidhar, A. Ishihara, K. Suzuki, Y. Fukumoto, Y. Yamamoto, M. Tomita

研究成果: Article › 査読

30 被引用数 (Scopus)

抄録

The optimization of the sintering conditions of disk shaped bulk MgB ₂ superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB₂ bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.

本文言語	English
ページ（範囲）	85-88
ページ数	4
ジャーナル	Physica C: Superconductivity and its applications
巻	494
DOI	https://doi.org/10.1016/j.physc.2013.04.012
出版ステータス	Published - 2013
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/j.physc.2013.04.012

他のファイルとリンク

引用スタイル

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abstract = "The optimization of the sintering conditions of disk shaped bulk MgB 2 superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB2 bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.",

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AU - Muralidhar, M.

AU - Ishihara, A.

AU - Suzuki, K.

AU - Fukumoto, Y.

AU - Yamamoto, Y.

AU - Tomita, M.

PY - 2013

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N2 - The optimization of the sintering conditions of disk shaped bulk MgB 2 superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB2 bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.

AB - The optimization of the sintering conditions of disk shaped bulk MgB 2 superconductors with respect to the trapped field is described. Series of samples were prepared by varying the sintering temperatures between 700 and 950 C. The temperature range was divided into three regions, namely the low (<750 C), medium (<825 C), and high (>850 C) temperature region. Scanning electron microscopy and X-ray diffraction indicated that homogenous single phase MgB2 bulks were produced in the medium sintering temperature range. At this processing temperature range the highest trapped field was also achieved. Samples of 20 mm in diameter and 7 mm thick produced at 775 C exhibited trapped field of 1.50 T at 20 K.

KW - MgB

KW - Microstructure analysis

KW - Trapped field

KW - X-ray diffraction

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