Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train

M. Tomita; K. Nagashima; T. Herai; M. Murakami

doi:10.1016/S0921-4534(02)00976-0

Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train

M. Tomita, K. Nagashima, T. Herai, M. Murakami

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

9 Citations (Scopus)

Abstract

Bulk RE-Ba-Cu-O (RE: rare earth elements) superconductors exhibit high critical current density (J_c) and low thermal conductivity, that are the characteristics desired for the current lead applications. In this study, we studied whether the resin-impregnated Y-Ba-Cu-O rods can be used as the current lead for the superconducting magnet on a magnetically levitated train. The fatigue test showed that the mechanical properties of resin-impregnated Y-Ba-Cu-O rods are sufficiently good for maglev applications. We could also pass the electric currents of 500 A without heat generation. This was further confirmed by field distribution measurements, which showed that the superconducting state of the current lead was well maintained when the currents of 500 A were passed.

Original language	English
Pages (from-to)	1216-1220
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	372-376
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(02)00976-0
Publication status	Published - 2002 Aug
Externally published	Yes

Keywords

Bulk
Current lead
Epoxy resins
Mechanical strength
Superconductor
Trapped magnetic field

ASJC Scopus subject areas

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

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10.1016/S0921-4534(02)00976-0

Cite this

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title = "Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train",

abstract = "Bulk RE-Ba-Cu-O (RE: rare earth elements) superconductors exhibit high critical current density (Jc) and low thermal conductivity, that are the characteristics desired for the current lead applications. In this study, we studied whether the resin-impregnated Y-Ba-Cu-O rods can be used as the current lead for the superconducting magnet on a magnetically levitated train. The fatigue test showed that the mechanical properties of resin-impregnated Y-Ba-Cu-O rods are sufficiently good for maglev applications. We could also pass the electric currents of 500 A without heat generation. This was further confirmed by field distribution measurements, which showed that the superconducting state of the current lead was well maintained when the currents of 500 A were passed.",

keywords = "Bulk, Current lead, Epoxy resins, Mechanical strength, Superconductor, Trapped magnetic field",

author = "M. Tomita and K. Nagashima and T. Herai and M. Murakami",

note = "Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications under the New Sunshine Program administered by the Agency of Industrial Science and Technology (AIST) of the Ministry of International Trade and Industry (MITI) of Japan. This work was financially supported by the MOT of Japan. ",

year = "2002",

month = aug,

doi = "10.1016/S0921-4534(02)00976-0",

language = "English",

volume = "372-376",

pages = "1216--1220",

journal = "Physica C: Superconductivity and its Applications",

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T1 - Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train

AU - Tomita, M.

AU - Nagashima, K.

AU - Herai, T.

AU - Murakami, M.

N1 - Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications under the New Sunshine Program administered by the Agency of Industrial Science and Technology (AIST) of the Ministry of International Trade and Industry (MITI) of Japan. This work was financially supported by the MOT of Japan.

PY - 2002/8

Y1 - 2002/8

N2 - Bulk RE-Ba-Cu-O (RE: rare earth elements) superconductors exhibit high critical current density (Jc) and low thermal conductivity, that are the characteristics desired for the current lead applications. In this study, we studied whether the resin-impregnated Y-Ba-Cu-O rods can be used as the current lead for the superconducting magnet on a magnetically levitated train. The fatigue test showed that the mechanical properties of resin-impregnated Y-Ba-Cu-O rods are sufficiently good for maglev applications. We could also pass the electric currents of 500 A without heat generation. This was further confirmed by field distribution measurements, which showed that the superconducting state of the current lead was well maintained when the currents of 500 A were passed.

AB - Bulk RE-Ba-Cu-O (RE: rare earth elements) superconductors exhibit high critical current density (Jc) and low thermal conductivity, that are the characteristics desired for the current lead applications. In this study, we studied whether the resin-impregnated Y-Ba-Cu-O rods can be used as the current lead for the superconducting magnet on a magnetically levitated train. The fatigue test showed that the mechanical properties of resin-impregnated Y-Ba-Cu-O rods are sufficiently good for maglev applications. We could also pass the electric currents of 500 A without heat generation. This was further confirmed by field distribution measurements, which showed that the superconducting state of the current lead was well maintained when the currents of 500 A were passed.

KW - Bulk

KW - Current lead

KW - Epoxy resins

KW - Mechanical strength

KW - Superconductor

KW - Trapped magnetic field

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JO - Physica C: Superconductivity and its Applications

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IS - PART 2

ER -

Resin-impregnated bulk RE-Ba-Cu-O current leads for the superconducting magnet on maglev train

Abstract

Keywords

ASJC Scopus subject areas

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