Measurements of trapped-flux density for bulk high-temperature superconductors

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Large grain bulk superconductors with large critical current density can trap large fields and thus have potential for various engineering applications. For the design of the devices utilizing the bulk superconductors, one needs to know the maximum trapped-flux density. There are several parameters to affect the trapped-field values. The trapped-fields decay with time due to flux flow and flux creep, and therefore, some waiting time is necessary to determine the value, which can be used for the design of industrial machines. For comparative study, one needs to apply large enough fields to ensure the saturation of field-trapping capability. Furthermore, one needs to specify the sample geometry and the correct gap distance between the sample and the magnetic sensor.

Original languageEnglish
Pages (from-to)751-754
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

Fingerprint

High temperature superconductors
high temperature superconductors
flux density
Fluxes
Superconducting materials
Critical current density (superconductivity)
Magnetic sensors
critical current
trapping
traps
engineering
current density
saturation
sensors
Creep
decay
geometry
Geometry

Keywords

  • Bulk superconductors
  • Flux pinning
  • Magnet
  • Standardization
  • Trapped-field measurement
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Measurements of trapped-flux density for bulk high-temperature superconductors. / Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 751-754.

Research output: Contribution to journalArticle

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