Doping effect of Zr and Ti on the critical current density of MgB2 bulk superconductors prepared under ambient pressure

Y. Zhao; Y. Feng; D. X. Huang; T. Machi; C. H. Cheng; K. Nakao; N. Chikumoto; Y. Fudamoto; N. Koshizuka; M. Murakami

doi:10.1016/S0921-4534(02)01395-3

Doping effect of Zr and Ti on the critical current density of MgB₂ bulk superconductors prepared under ambient pressure

Y. Zhao, Y. Feng, D. X. Huang, T. Machi, C. H. Cheng, K. Nakao, N. Chikumoto, Y. Fudamoto, N. Koshizuka, M. Murakami

研究成果: Article › 査読

42 被引用数 (Scopus)

抄録

The doping effect of Ti and Zr on the superconducting properties and the microstructure of sintered MgB₂ bulk materials has been studied. The transition metal is found to work as a sintering assistant, which significantly enhances the grain connection of the MgB₂ bulk materials during sintering processing. With this technique, we have fabricated Ti-doped MgB₂ bulk materials consisting of fine 10 nm scale particles and achieved a high J_c over 1 MA/cm² in 0 T at 20 K. The large enhancement of J_c is explained by the excellent connection between grains and a high density of pinning centers served by grain boundaries and MgO nanoparticles.

本文言語	English
ページ（範囲）	122-126
ページ数	5
ジャーナル	Physica C: Superconductivity and its applications
巻	378-381
号	PART 1
DOI	https://doi.org/10.1016/S0921-4534(02)01395-3
出版ステータス	Published - 2002 10月 1
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/S0921-4534(02)01395-3

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引用スタイル

Zhao, Y., Feng, Y., Huang, D. X., Machi, T., Cheng, C. H., Nakao, K., Chikumoto, N., Fudamoto, Y., Koshizuka, N., & Murakami, M. (2002). Doping effect of Zr and Ti on the critical current density of MgB₂ bulk superconductors prepared under ambient pressure. Physica C: Superconductivity and its applications, 378-381(PART 1), 122-126. https://doi.org/10.1016/S0921-4534(02)01395-3

Zhao, Y, Feng, Y, Huang, DX, Machi, T, Cheng, CH, Nakao, K, Chikumoto, N, Fudamoto, Y, Koshizuka, N & Murakami, M 2002, 'Doping effect of Zr and Ti on the critical current density of MgB₂ bulk superconductors prepared under ambient pressure', Physica C: Superconductivity and its applications, vol. 378-381, no. PART 1, pp. 122-126. https://doi.org/10.1016/S0921-4534(02)01395-3

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abstract = "The doping effect of Ti and Zr on the superconducting properties and the microstructure of sintered MgB2 bulk materials has been studied. The transition metal is found to work as a sintering assistant, which significantly enhances the grain connection of the MgB2 bulk materials during sintering processing. With this technique, we have fabricated Ti-doped MgB2 bulk materials consisting of fine 10 nm scale particles and achieved a high Jc over 1 MA/cm2 in 0 T at 20 K. The large enhancement of Jc is explained by the excellent connection between grains and a high density of pinning centers served by grain boundaries and MgO nanoparticles.",

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AU - Zhao, Y.

AU - Feng, Y.

AU - Huang, D. X.

AU - Machi, T.

AU - Cheng, C. H.

AU - Nakao, K.

AU - Chikumoto, N.

AU - Fudamoto, Y.

AU - Koshizuka, N.

AU - Murakami, M.

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