Mechanical properties and field trapping ability of bulk superconductors with resin impregnation

M. Tomita, M. Murakami, K. Itoh, H. Wada

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We have studied the mechanical properties of Y-Ba-Cu-O rods with and without resin impregnation using a Vickers indenter test. The respective stress intensity factor (Kc) values of YBCO superconductors with and without resin impregnation were 0.84 MPa m1/2 and 0.69 MPa m1/2. This shows that resin impregnation is effective in improving the fracture toughness. We also performed trapped-field measurements for YBCO bulk superconductors 24 mm in diameter with and without resin impregnation at 30 K. The samples without resin impregnation could trap 10.17 T at 37 K but cracked at lower temperatures. In contrast, the sample with resin impregnation could stably trap an extremely high field of 14.89 T at 30 K, reflecting the improvement of mechanical properties.

本文言語English
ページ(範囲)78-82
ページ数5
ジャーナルSuperconductor Science and Technology
17
1
DOI
出版ステータスPublished - 2004 1月 1
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

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