Critical current density and mechanical strength of YBa2Cu3O7-δ superconducting composites containing Zr, Ag and Y2BaCuO5 dispersions by melt-processing

T. Oka, Y. Itoh, Y. Yanagi, H. Tanaka, S. Takashima, Y. Yamada, U. Mizutani

研究成果: Article査読

68 被引用数 (Scopus)


The high-Tc YBa2Cu3O7-δ composite superconductors containing Zr, Ag and Y2BaCuO5 have been fabricated by melt processing. Both the critical current density JMc and the flexural strength αmax of these samples were measured. The value of JMc increased initially for all inclusions added. The microstructure analyses revealed that the Y2BaCuO5, Ag and BaZrO3 were finely dispersed in the matrix. We believe that the fine dispersion of these inclusions is most likely responsible for an increase in JMc. The largest value of JMc we obtained is 64 800 A/cm2 on the sample containing 50 mol.% Y2BaCuO5. In contrast, the value of αmax was limited below 60 MPa due to the presence of mechanically weak grain boundaries. The addition of Ag to YBa2Cu3O7-δ was effective in increasing both αmax and JMc.

ジャーナルPhysica C: Superconductivity and its applications
出版ステータスPublished - 1992 9 15

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学


「Critical current density and mechanical strength of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> superconducting composites containing Zr, Ag and Y<sub>2</sub>BaCuO<sub>5</sub> dispersions by melt-processing」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。