TY - JOUR
T1 - Thermal conductivity of superconducting joint of Y-Ba-Cu-O bulk materials
AU - Satoh, T.
AU - Iida, K.
AU - Yoshioka, J.
AU - Sakai, N.
AU - Murakami, M.
AU - Noto, K.
N1 - Funding Information:
This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.
PY - 2003/10
Y1 - 2003/10
N2 - 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.
AB - 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.
KW - Er-Ba-Cu-O
KW - Joining
KW - Thermal conductivity
KW - Y-Ba-Cu-O bulk
KW - Y-Ba-Cu-O/Ag
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U2 - 10.1016/S0921-4534(03)00986-9
DO - 10.1016/S0921-4534(03)00986-9
M3 - Conference article
AN - SCOPUS:0041782703
SN - 0921-4534
VL - 392-396
SP - 669
EP - 672
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - PART 1
T2 - Proceedings of the 15th International Symposium on Superconduc
Y2 - 11 November 2002 through 13 November 2002
ER -