Progress in Superconductivity

The Korean Superconductivity Society (한국초전도학회)
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Mechanical and Magnetic Properties of YBCO Superconductor with Bi/CNT Composite and Resin/CNT Impregnation

Bi/CNT 화합물과 Resin/CNT를 보강한 YBCO 초전도체의 기계적, 자기적 특성 변화

  • Oh, W.S. (Department of Advanced Materials Engineering, Chungbuk national university) ;
  • Jang, G.E. (Department of Advanced Materials Engineering, Chungbuk national university) ;
  • Han, Y.H. (Korea Electric Power Research Institute) ;
  • Sung, T.H. (Korea Electric Power Research Institute)
  • Published : 2007.10.31
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Abstract

Bi/CNT composite and resin/CNT were chosen to improve the mechanical properties of $YBa_2Cu_3O_7$(YBCO) superconductor. In order to elucidate the effects of Bi/CNT composite and resin/CNT in YBCO superconductors, melt texture superconductor were impregnated by mixed compound of Bi and CNT into the artificial holes parallel to the c-axis, which were drilled on the YBCO superconductor. Various amount of Bi/CNT and resin/CNT were impregnated to YBCO superconductor with different holes diameters. Typical artificial holes diameters were 0.5, 0.7, and 1.0 mm respectively. Result of three-point bending test measurement, the bending strength with resin/CNT impregnation was improved up to 59.64 MPa as compared with 50.79 MPa of resin/CNT free bulk. Resin/CNT impregnation has been found to be one of the effective ways in improving the mechanical properties of bulk superconductor.

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