Construction of a strong magnetic field generator with use of melt-processed bulk superconductors

Tetsuo Oka, K. Yokoyama, Y. Itoh, H. Ikuta, U. Mizutani, H. Okada, K. Katagiri, K. Noto

Research output: Contribution to journalConference article

12 Citations (Scopus)

Abstract

A superconducting permanent magnet system capable of generating strong magnetic fields has been constructed by using melt-processed bulk superconductors as trapped field magnets. The trapped field in the open space between two magnetic poles that are set face to face has reached 3.15 T when magnetized by a pulsed-fleld magnetization (PFM) technique. That was operated at 30 K attained by GM-cycle refrigerators. The performance exceeds that of conventional rare earth magnets or large scale electromagnets by far. It was found that the iteratively magnetizing pulsed field operation with reducing amplitude (IMRA) method is very effective in magnetizing the bulk superconductors. The magnet system can be used as a high field generator in various applications.

Original languageEnglish
Pages (from-to)1584-1587
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume13
Issue number2 II
DOIs
Publication statusPublished - 2003 Jun 1
Externally publishedYes
Event2002 Applied Superconductivity Conference - Houston, TX, United States
Duration: 2002 Aug 42002 Aug 9

Fingerprint

Superconducting materials
Magnets
magnets
generators
Magnetic fields
magnetic fields
magnetic poles
Electromagnets
electromagnets
Superconducting magnets
Refrigerators
refrigerators
superconducting magnets
permanent magnets
Rare earths
Permanent magnets
Poles
Magnetization
rare earth elements
magnetization

Keywords

  • Bulk superconductors
  • Field generator
  • Pulsed field magnetization
  • Trapped field magnet

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Construction of a strong magnetic field generator with use of melt-processed bulk superconductors. / Oka, Tetsuo; Yokoyama, K.; Itoh, Y.; Ikuta, H.; Mizutani, U.; Okada, H.; Katagiri, K.; Noto, K.

In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 II, 01.06.2003, p. 1584-1587.

Research output: Contribution to journalConference article

Oka, Tetsuo ; Yokoyama, K. ; Itoh, Y. ; Ikuta, H. ; Mizutani, U. ; Okada, H. ; Katagiri, K. ; Noto, K. / Construction of a strong magnetic field generator with use of melt-processed bulk superconductors. In: IEEE Transactions on Applied Superconductivity. 2003 ; Vol. 13, No. 2 II. pp. 1584-1587.
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