Investigation of the Flux Flow-inhibiting Effect of a Hole-opened Superconducting Bulk Magnet

K. Yokoyama, T. Tsukui, H. Mita, N. Tsubonoya, Tetsuo Oka

研究成果: Conference article

抜粋

A hole-opened bulk material has been proposed to supply magnetic flux into the large-size and high-performance bulk efficiently because superconductivity is intentionally lowered in the portion with holes. We were anxious about the flux flow in a high applied field, while it was confirmed that the flux flow was suppressed in a high applied field at a low temperature. To examine the flux flow-inhibiting effect in detail, in this paper, the time response of flux density in four portions, between the holes, the inside of the inner holes, the side opposite the holes, and the center, was measured. Although small holes served as a channel and magnetic flux flew out through a channel just after applying a pulsed field, a channel closed for up to 0.2 seconds, flux flow was disturbed, and then the magnetic flux was trapped. As J c increased with a decrease in temperature, a channel closed more quickly, and a trapped field was enhanced.

元の言語English
ページ(範囲)302-305
ページ数4
ジャーナルPhysics Procedia
58
DOI
出版物ステータスPublished - 2013 1 1
外部発表Yes
イベント26th International Symposium on Superconductivity, ISS 2013 - Tokyo, Japan
継続期間: 2013 11 182013 11 20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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