Imperfection of microstructural control in MgB2 superconducting tapes fabricated using an in-situ powder-in-tube process: Toward practical applications

S. Hata, H. Sosiati, Y. Shimada, A. Matsumoto, K. Ikeda, H. Nakashima, H. Kitaguchi, H. Kumakura

研究成果: ジャーナルへの寄稿学術誌査読

6 被引用数 (Scopus)

抄録

MgB2 is a promising superconductor for future applications to superconduct wires and tapes used at the liquid hydrogen temperature (20 K). Because the maximal superconducting current (critical current) in MgB 2 depends on its microstructure, an "in-situ" process to fabricate MgB2 based on a reaction between Mg and B is effective in controlling the microstructure. However, the critical current in the fabricated MgB2 wires and tapes is not sufficiently high for practical use. This may be attributed to the imperfectness of the microstructural control in MgB2 wires and tapes. In this paper, we will discuss the microstructural features of MgB2 tapes fabricated using a typical in-situ powder-in-tube process. By observing the early stage of microstructural evolution in detail, we can gain insights into the next strategy for improving the microstructure of MgB2 tapes with respect to their applications.

本文言語英語
ページ(範囲)132-139
ページ数8
ジャーナルJournal of Materials Science
48
1
DOI
出版ステータス出版済み - 1月 2013

!!!All Science Journal Classification (ASJC) codes

  • 材料科学一般
  • 材料力学
  • 機械工学

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