Improvement of the microstructure of melt-processed Sm-based superconductors

K. Tazoe, H. Ikuta, M. Yoshikawa, Y. Yanagi, Y. Itoh, Tetsuo Oka, U. Mizutani

研究成果: Article

13 引用 (Scopus)

抄録

We report on the effect of the atmosphere during the decomposition of the precursors of Sm-Ba-Cu-O bulk superconductors. It was found that the formation of voids was greatly suppressed by two methods, melting in an oxygen gas atmosphere or in vacuum. For both methods, the atmosphere during crystallization was switched to an Ar gas flowing one. The samples prepared by these methods exhibited high superconducting transition temperatures with sharp transition widths. However, the zero-field critical current density was lower than that of the reference sample, which was prepared by decomposing the precursor in an Ar gas flowing atmosphere.

元の言語English
ページ(範囲)807-810
ページ数4
ジャーナルPhysica C: Superconductivity and its Applications
357-360
DOI
出版物ステータスPublished - 2001 1 1
外部発表Yes

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Superconducting materials
Gases
atmospheres
microstructure
Microstructure
gases
Crystallization
Superconducting transition temperature
Melting
Vacuum
Oxygen
Decomposition
voids
critical current
transition temperature
melting
crystallization
current density
decomposition
vacuum

ASJC Scopus subject areas

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

これを引用

Improvement of the microstructure of melt-processed Sm-based superconductors. / Tazoe, K.; Ikuta, H.; Yoshikawa, M.; Yanagi, Y.; Itoh, Y.; Oka, Tetsuo; Mizutani, U.

:: Physica C: Superconductivity and its Applications, 巻 357-360, 01.01.2001, p. 807-810.

研究成果: Article

Tazoe, K. ; Ikuta, H. ; Yoshikawa, M. ; Yanagi, Y. ; Itoh, Y. ; Oka, Tetsuo ; Mizutani, U. / Improvement of the microstructure of melt-processed Sm-based superconductors. :: Physica C: Superconductivity and its Applications. 2001 ; 巻 357-360. pp. 807-810.
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AU - Yoshikawa, M.

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AU - Oka, Tetsuo

AU - Mizutani, U.

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