MgB2/Fe superconducting tapes made using mechanically milled powders in Ar and H2 atmospheres

T. Kondo, P. Badica, Y. Nakamori, S. Orimo, K. Togano, G. Nishijima, K. Watanabe

研究成果: Conference article査読

12 被引用数 (Scopus)

抄録

Fe-sheathed tapes of MgB2 with addition of SiC have been prepared by the powder-in-tube (PIT) method using a powder mixture mechanically milled in an argon or hydrogen atmosphere. The reactivity of the component powders in the mixtures, Mg, B and SiC, was significantly enhanced by mechanical milling, so that MgB2 formed faster than in tapes fabricated from a hand-milled mixture. At the same time the number of impurity phases was higher, and the impurity phases of Mg2Si and Fe2B were observed only in these tapes. Mechanical milling also induced a lower quality of MgB 2, especially for tapes produced from powders milled in a hydrogen atmosphere, with a significant influence on the values of the critical temperature TC and critical field, JC.

本文言語English
ページ(範囲)1231-1237
ページ数7
ジャーナルPhysica C: Superconductivity and its applications
426-431
II
DOI
出版ステータスPublished - 2005
イベントProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
継続期間: 2004 11 232004 11 25

ASJC Scopus subject areas

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

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