RE-Ba-Cu-O for high functional superconducting permanent magnet

S. I. Yoo; T. Higuchi; N. Sakai; H. Fujimoto; M. Murakami

doi:10.1016/S0921-5107(97)00328-0

RE-Ba-Cu-O for high functional superconducting permanent magnet

S. I. Yoo, T. Higuchi, N. Sakai, H. Fujimoto, M. Murakami

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Among various potential applications of melt-textured RE-Ba-Cu-O (REBCO, RE: rare earth elements) superconductors, we have examined the bulk application as the superconducting permanent magnet, especially for the magnetically-levitated (MAGLEV) train. Compared with Y-Ba-Cu-O (YBCO), oxygen-controlled melt-growth (OCMG)-processed LREBCO (LRE: light rare earth elements) bulk superconductors are more promising for this application because of larger critical current density (J_c) values in high field and higher irreversibility field (B_irr) within the range of the liquid nitrogen refrigeration (63-77 K), implying that even higher trapped fields (B_t) are achievable in principle. In this paper, material requirements of superconducting bulks for the MAGLEV train are first presented and then processing aspects for the fabrication of good LREBCO bulks are described.

Original language	English
Pages (from-to)	203-210
Number of pages	8
Journal	Materials Science and Engineering B
Volume	53
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-5107(97)00328-0
Publication status	Published - 1998 May 1
Externally published	Yes

Keywords

LREBaCuO solid solution
Magnetically-levitated (MAGLEV) train
Melt-textured RE-Ba-Cu-O superconductors
Superconducting permanent magnets

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "RE-Ba-Cu-O for high functional superconducting permanent magnet",

abstract = "Among various potential applications of melt-textured RE-Ba-Cu-O (REBCO, RE: rare earth elements) superconductors, we have examined the bulk application as the superconducting permanent magnet, especially for the magnetically-levitated (MAGLEV) train. Compared with Y-Ba-Cu-O (YBCO), oxygen-controlled melt-growth (OCMG)-processed LREBCO (LRE: light rare earth elements) bulk superconductors are more promising for this application because of larger critical current density (Jc) values in high field and higher irreversibility field (Birr) within the range of the liquid nitrogen refrigeration (63-77 K), implying that even higher trapped fields (Bt) are achievable in principle. In this paper, material requirements of superconducting bulks for the MAGLEV train are first presented and then processing aspects for the fabrication of good LREBCO bulks are described.",

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author = "Yoo, {S. I.} and T. Higuchi and N. Sakai and H. Fujimoto and M. Murakami",

year = "1998",

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T1 - RE-Ba-Cu-O for high functional superconducting permanent magnet

AU - Yoo, S. I.

AU - Higuchi, T.

AU - Sakai, N.

AU - Fujimoto, H.

AU - Murakami, M.

PY - 1998/5/1

Y1 - 1998/5/1

N2 - Among various potential applications of melt-textured RE-Ba-Cu-O (REBCO, RE: rare earth elements) superconductors, we have examined the bulk application as the superconducting permanent magnet, especially for the magnetically-levitated (MAGLEV) train. Compared with Y-Ba-Cu-O (YBCO), oxygen-controlled melt-growth (OCMG)-processed LREBCO (LRE: light rare earth elements) bulk superconductors are more promising for this application because of larger critical current density (Jc) values in high field and higher irreversibility field (Birr) within the range of the liquid nitrogen refrigeration (63-77 K), implying that even higher trapped fields (Bt) are achievable in principle. In this paper, material requirements of superconducting bulks for the MAGLEV train are first presented and then processing aspects for the fabrication of good LREBCO bulks are described.

AB - Among various potential applications of melt-textured RE-Ba-Cu-O (REBCO, RE: rare earth elements) superconductors, we have examined the bulk application as the superconducting permanent magnet, especially for the magnetically-levitated (MAGLEV) train. Compared with Y-Ba-Cu-O (YBCO), oxygen-controlled melt-growth (OCMG)-processed LREBCO (LRE: light rare earth elements) bulk superconductors are more promising for this application because of larger critical current density (Jc) values in high field and higher irreversibility field (Birr) within the range of the liquid nitrogen refrigeration (63-77 K), implying that even higher trapped fields (Bt) are achievable in principle. In this paper, material requirements of superconducting bulks for the MAGLEV train are first presented and then processing aspects for the fabrication of good LREBCO bulks are described.

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