Subgrain structures and their effects on critical current properties in large single-domain RE123 bulk superconductors

K. Ogasawara, N. Sakai, M. Murakami

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We have studied the microstructures of subgrains in large single-domain RE123 (RE = Y, Sm) bulk superconductors through microscopic observation and X-ray pole figure analyses. We have found that misorientation of the subgrains increases along with the crystal growth, and also that the misorientation has positive relation to the size and concentration of the second-phase particles. Such subgrains are considered to affect current carrying capabilities in bulk materials, so that we performed magnetic and electric measurements for several samples having different subgrain structures. The relationships between obtained Jc-B or AC transport characteristics and subgrain geometries are discussed.

本文言語English
ページ(範囲)727-731
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
378-381
PART 1
DOI
出版ステータスPublished - 2002 10 1
外部発表はい

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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