Enhancement of critical current density in MgB2 bulk superconductor by Ti doping

Y. Zhao, Y. Feng, T. Machi, C. H. Cheng, D. X. Huang, Y. Fudamoto, N. Koshizuka, M. Murakami

研究成果: Article

17 引用 (Scopus)

抜粋

We studied the Ti doping effect on the superconducting properties and microstructure of sintered MgB2 bulk polycrystals. Using Ti as a sintering assistant, we have fabricated MgB2 bulk materials consisting of fine 10 nm scale particles and achieved a high Jc of 1 MA/cm2 in self-field and 3 × 105 A/cm2 in 1 T at 20 K. The large enhancement of Jc is explained by the excellent connection between grains and the high density of pinning centers served by both grain boundaries and MgO nanoparticles.

元の言語English
ページ(範囲)437-443
ページ数7
ジャーナルEurophysics Letters
57
発行部数3
DOI
出版物ステータスPublished - 2002 8 19

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Zhao, Y., Feng, Y., Machi, T., Cheng, C. H., Huang, D. X., Fudamoto, Y., Koshizuka, N., & Murakami, M. (2002). Enhancement of critical current density in MgB2 bulk superconductor by Ti doping. Europhysics Letters, 57(3), 437-443. https://doi.org/10.1209/epl/i2002-00479-1