Mechanical persistent current switch made of RE-Ba-Cu-O bulk with resin impregnation

M. Tomita, Masato Murakami, S. Nariki, K. Sawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We studied the possibility to construct a mechanical persistent current switch using a pair of bulk YBCO superconductors with resin-impregnation. Supercurrents could not be passed between two YBCO bulks when the currents were passed along the c-axis. In contrast, supercurrents as large as 13.5 A could be successfully passed between two YBCO cubes 8 mm in side length at the compression force of 500 N when the currents were passed along the ab-axis. The contact surfaces were observed by scanning electron microscopy after the transport measurements at 500 N load. The damage was observed on the (0 0 1) contact surface, while no damage was present on the (1 0 0) surface, reflecting superior contact characteristics.

Original languageEnglish
Pages (from-to)864-868
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

Fingerprint

Impregnation
resins
switches
Resins
Switches
damage
YBCO superconductors
Superconducting materials
Scanning electron microscopy
scanning electron microscopy

Keywords

  • Bulk superconductor
  • Epoxy resin
  • Mechanical strength
  • Persistent current switch
  • YBCO

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Mechanical persistent current switch made of RE-Ba-Cu-O bulk with resin impregnation. / Tomita, M.; Murakami, Masato; Nariki, S.; Sawa, K.

In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 864-868.

Research output: Contribution to journalArticle

@article{b5a27f6714514a198ba5fb027eeb0d0f,
title = "Mechanical persistent current switch made of RE-Ba-Cu-O bulk with resin impregnation",
abstract = "We studied the possibility to construct a mechanical persistent current switch using a pair of bulk YBCO superconductors with resin-impregnation. Supercurrents could not be passed between two YBCO bulks when the currents were passed along the c-axis. In contrast, supercurrents as large as 13.5 A could be successfully passed between two YBCO cubes 8 mm in side length at the compression force of 500 N when the currents were passed along the ab-axis. The contact surfaces were observed by scanning electron microscopy after the transport measurements at 500 N load. The damage was observed on the (0 0 1) contact surface, while no damage was present on the (1 0 0) surface, reflecting superior contact characteristics.",
keywords = "Bulk superconductor, Epoxy resin, Mechanical strength, Persistent current switch, YBCO",
author = "M. Tomita and Masato Murakami and S. Nariki and K. Sawa",
year = "2002",
month = "10",
day = "1",
doi = "10.1016/S0921-4534(02)01814-2",
language = "English",
volume = "378-381",
pages = "864--868",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 1",

}

TY - JOUR

T1 - Mechanical persistent current switch made of RE-Ba-Cu-O bulk with resin impregnation

AU - Tomita, M.

AU - Murakami, Masato

AU - Nariki, S.

AU - Sawa, K.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - We studied the possibility to construct a mechanical persistent current switch using a pair of bulk YBCO superconductors with resin-impregnation. Supercurrents could not be passed between two YBCO bulks when the currents were passed along the c-axis. In contrast, supercurrents as large as 13.5 A could be successfully passed between two YBCO cubes 8 mm in side length at the compression force of 500 N when the currents were passed along the ab-axis. The contact surfaces were observed by scanning electron microscopy after the transport measurements at 500 N load. The damage was observed on the (0 0 1) contact surface, while no damage was present on the (1 0 0) surface, reflecting superior contact characteristics.

AB - We studied the possibility to construct a mechanical persistent current switch using a pair of bulk YBCO superconductors with resin-impregnation. Supercurrents could not be passed between two YBCO bulks when the currents were passed along the c-axis. In contrast, supercurrents as large as 13.5 A could be successfully passed between two YBCO cubes 8 mm in side length at the compression force of 500 N when the currents were passed along the ab-axis. The contact surfaces were observed by scanning electron microscopy after the transport measurements at 500 N load. The damage was observed on the (0 0 1) contact surface, while no damage was present on the (1 0 0) surface, reflecting superior contact characteristics.

KW - Bulk superconductor

KW - Epoxy resin

KW - Mechanical strength

KW - Persistent current switch

KW - YBCO

UR - http://www.scopus.com/inward/record.url?scp=0036785775&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036785775&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(02)01814-2

DO - 10.1016/S0921-4534(02)01814-2

M3 - Article

AN - SCOPUS:0036785775

VL - 378-381

SP - 864

EP - 868

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 1

ER -