TY - JOUR
T1 - Scanning Hall-probe microscopy for site-specific observation of microstructure in superconducting wires and tapes for the clarification of their performance bottlenecks
AU - Higashikawa, Kohei
AU - Inoue, Masayoshi
AU - Ye, Shujun
AU - Matsumoto, Akiyoshi
AU - Kumakura, Hiroaki
AU - Yoshida, Ryuji
AU - Kato, Takeharu
AU - Machi, Takato
AU - Ibi, Akira
AU - Izumi, Teruo
AU - Kiss, Takanobu
N1 - Funding Information:
This work was supported by the JSPS KAKENHI (Grant Nos. JP19H05617 and JP18K18864), the Japan Science and Technology Agency (JST) through the Advanced Low Carbon Technology Research and Development Program (ALCA), and by the New Energy and Industrial Technology Development Organization (NEDO).
Publisher Copyright:
© 2020 IOP Publishing Ltd.
PY - 2020/6/1
Y1 - 2020/6/1
N2 - This paper reports a diagnostic method for clarifying performance bottlenecks in superconducting wires and tapes for their further performance enhancements. In particular, our achievements by scanning Hall-probe microscopy (SHPM), which worked well for selecting positions for microstructure observation by SEM, TEM, and x-ray CT, are introduced. This hybrid microscopy offers the information of the direct relationship between the performance of a practical-scale superconducting wire or tape and its origin in micro-scale or nano-scale structure. As such examples, characterization results for an MgB2 multi-filamentary wire, a commercially available long RE-123 coated conductor, and a striated multi-filamentary coated conductor are reported in this paper through reviewing our past studies.
AB - This paper reports a diagnostic method for clarifying performance bottlenecks in superconducting wires and tapes for their further performance enhancements. In particular, our achievements by scanning Hall-probe microscopy (SHPM), which worked well for selecting positions for microstructure observation by SEM, TEM, and x-ray CT, are introduced. This hybrid microscopy offers the information of the direct relationship between the performance of a practical-scale superconducting wire or tape and its origin in micro-scale or nano-scale structure. As such examples, characterization results for an MgB2 multi-filamentary wire, a commercially available long RE-123 coated conductor, and a striated multi-filamentary coated conductor are reported in this paper through reviewing our past studies.
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U2 - 10.1088/1361-6668/ab89ef
DO - 10.1088/1361-6668/ab89ef
M3 - Article
AN - SCOPUS:85085696532
SN - 0953-2048
VL - 33
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
IS - 6
M1 - 064005
ER -