Processing and superconducting properties of high-Jc bulk YBaCuO prepared by melt process

Mitsuru Morita; Katsuyoshi Miyamoto; Kenji Doi; Masato Murakami; Kiyoshi Sawano; Shoichi Matsuda

doi:10.1016/0921-4534(90)90632-O

Processing and superconducting properties of high-J_c bulk YBaCuO prepared by melt process

Mitsuru Morita, Katsuyoshi Miyamoto, Kenji Doi, Masato Murakami, Kiyoshi Sawano, Shoichi Matsuda

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Abstract

The authors tried to produce high critical current density (J_c) bulk superconducting material by a melt process. It became clear that the grain boundary region acts as a weak-link and causes the low J_c of the sintered material. It was found that highly oriented bulk material can be produced by a melt process in YBaCuO system. The authors obtained samples which contained many fine Y₂BaCuO₅ (211) phases and no grain boundary throughout a region of several tens of cubic millimeters. By magnetization measurements, it was found that J_c exceeded 10⁴ A/cm₂ at 77 K and 1 T, which is a promising value for practical applications.

Original language	English
Pages (from-to)	383-387
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	172
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(90)90632-O
Publication status	Published - 1990 Dec 15

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Cite this

Morita, M., Miyamoto, K., Doi, K., Murakami, M., Sawano, K., & Matsuda, S. (1990). Processing and superconducting properties of high-J_c bulk YBaCuO prepared by melt process. Physica C: Superconductivity and its applications, 172(3-4), 383-387. https://doi.org/10.1016/0921-4534(90)90632-O

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10.1016/0921-4534(90)90632-O