High-temperature superconducting motor using y-ba-cu-0 bulk magnets

Yoshitaka Itoh, Yousuke Yanagi, Masaaki Yoshikawa, Tetsuo Oka, Shintaro Harada, Tsutomu Sakakibara, Yuh Yamada, Uichiro Mizutani

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

A DC motor equipped with melt-processed Y-Ba-Cu-0 (YBCO) superconductors as field magnets was constructed. The YBCO bulks were magnetized at temperatures of 65-77 K in a liquid nitrogen vessel by applying a pulsed magnetic field. The maximum output power was 940 W when the YBCO bulks were cooled to 65 K. Continuous running tests were carried out for up to 6 h. We found that the trapped magnetic fluxes are hardly affected by the magnetic field of 7500 A/m generated by the armature current and that cooling of the YBCO bulks to low temperatures is very effective for holding the trapped field at a high level and, hence, substantially elevating the performance of a high-temperature superconducting (HTSC) motor.

Original languageEnglish
Pages (from-to)5574-5578
Number of pages5
JournalJapanese Journal of Applied Physics
Volume34
Issue number10
DOIs
Publication statusPublished - 1995 Jan 1
Externally publishedYes

Fingerprint

Magnets
magnets
YBCO superconductors
armatures
magnetic fields
liquid nitrogen
Magnetic fields
vessels
magnetic flux
DC motors
direct current
Liquid nitrogen
Magnetic flux
cooling
Temperature
Superconducting materials
output
Cooling
temperature

Keywords

  • Bulk magnet
  • Melt process
  • Pulse magnetization
  • Superconducting motor
  • Trapped magnetic field
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Itoh, Y., Yanagi, Y., Yoshikawa, M., Oka, T., Harada, S., Sakakibara, T., ... Mizutani, U. (1995). High-temperature superconducting motor using y-ba-cu-0 bulk magnets. Japanese Journal of Applied Physics, 34(10), 5574-5578. https://doi.org/10.1143/JJAP.34.5574

High-temperature superconducting motor using y-ba-cu-0 bulk magnets. / Itoh, Yoshitaka; Yanagi, Yousuke; Yoshikawa, Masaaki; Oka, Tetsuo; Harada, Shintaro; Sakakibara, Tsutomu; Yamada, Yuh; Mizutani, Uichiro.

In: Japanese Journal of Applied Physics, Vol. 34, No. 10, 01.01.1995, p. 5574-5578.

Research output: Contribution to journalArticle

Itoh, Y, Yanagi, Y, Yoshikawa, M, Oka, T, Harada, S, Sakakibara, T, Yamada, Y & Mizutani, U 1995, 'High-temperature superconducting motor using y-ba-cu-0 bulk magnets', Japanese Journal of Applied Physics, vol. 34, no. 10, pp. 5574-5578. https://doi.org/10.1143/JJAP.34.5574
Itoh, Yoshitaka ; Yanagi, Yousuke ; Yoshikawa, Masaaki ; Oka, Tetsuo ; Harada, Shintaro ; Sakakibara, Tsutomu ; Yamada, Yuh ; Mizutani, Uichiro. / High-temperature superconducting motor using y-ba-cu-0 bulk magnets. In: Japanese Journal of Applied Physics. 1995 ; Vol. 34, No. 10. pp. 5574-5578.
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