Thermal conductivity of superconducting joint of Y-Ba-Cu-O bulk materials

T. Satoh, K. Iida, J. Yoshioka, N. Sakai, M. Murakami, K. Noto

研究成果: Conference article

抄録

We have measured the thermal conductivity (κ) of bulk Y-Ba-Cu-O blocks welded with sintered Er-Ba-Cu-O and Y-Ba-Cu-O/Ag at temperatures between 5 and 300 K. For comparison, the thermal conductivity was also measured for melt-textured Y-Ba-Cu-O and Er-Ba-Cu-O. All the samples showed the enhancement of κ at around 50 K, which was commonly observed in high temperature superconductors. The maximum κ values were 90 mW/cm K for both welded Y-Ba-Cu-O and melt-textured Er-Ba-Cu-O and 150 mW/cm K for melt-textured Y-Ba-Cu-O. Such differences have originated from different microstructural features.

本文言語English
ページ(範囲)669-672
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
392-396
PART 1
DOI
出版ステータスPublished - 2003 10
外部発表はい
イベントProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
継続期間: 2002 11 112002 11 13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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