Superior growth orientation control via ZnO doping of large-grain LRE-Ba2Cu3Oy compounds grown with MgO seeds

M. Muralidhar, T. Kono, M. Jirsa, N. Sakai, M. Murakami, I. Hirabayashi

研究成果: Article査読

2 被引用数 (Scopus)


MgO seeds proved to be efficient in the growth orientation control of large grain LREBa2Cu3Oy 'LRE-123' pellets when a small quantity of ZnO was added, accompanied by a substantial reduction of liquid phase loss. Perfect facet lines grown up to the pellet bottom demonstrated excellent melt growth. Field distribution contour maps at the top and bottom surfaces were nearly identical. Magnetization measurements indicated that flux pinning performance continuously improved with increasing ZnO content up to 0.035 mol%, with critical current density reaching 100 kA cm-2 at 3 T (77 K). Microstructure analysis by scanning tunnelling microscopy and dynamic force microscopy proved the superior microstructure of the material, consistent with the other characteristics.

ジャーナルSuperconductor Science and Technology
出版ステータスPublished - 2006 7 1

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学


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