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タイトル: Strain analysis of I-c(epsilon) characteristic of YBCO coated conductor measured by a Walters spring
著者: Sugano, M
Choi, S
Miyazoe, A
Miyamatsu, K
Ando, T
Itoh, K
Kiyoshi, T
Wada, H
Selvamanickam, V
キーワード: critical current
intrinsic strain effect
Walters spring
YBCO coated conductor
発行日: Jun-2008
出版者: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
誌名: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
巻: 18
号: 2
開始ページ: 1143
終了ページ: 1146
抄録: lc-strain characteristic of YBCO coated conductor was measured using a Walters spring (WASP). In this technique, additional bending and thermal strains induced to the YBCO layer should be considered. In order to produce different initial bending strain to the YBCO layer, the conductor was wound around the springs with different diameters and in the different bending directions. The clear evidence was obtained that -strain curves using a WASP strongly depend on the initial bending strain state. However, when -strain curves were normalized by a maximum value, all of the curves even including the data measured by uniaxial strain method for a short sample fall on to the same curve. Strain analysis based on the rule of mixture probes that the shift along the strain axis for each -strain curve can be explained by the bending and thermal strain during soldering. This result suggests that combined strain of bending and tensile strains can be regarded as simple summation in the present YBCO coated conductor.
著作権等: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
URI: http://hdl.handle.net/2433/84550
DOI(出版社版): 10.1109/TASC.2008.922298
出現コレクション:学術雑誌掲載論文等

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