Effect of Y2BaCuO5 on fracture toughness of YBCO prepared by a MPMG process

Hiroyuki Fujimoto, Masato Murakami, Naoki Koshizuka

研究成果: Article査読

70 被引用数 (Scopus)

抄録

The fracture toughness of melt-powder-melt-growth (MPMG) processed YBaCuO samples was measured and the effect on the fracture toughness of the dispersed Y2BaCuO5 (211) particles in the 123 superconducting phase was found. Preferred fracture planes were the (100), (010) and (001) planes, and the fracture toughness of the (001) plane was lower than those of the (100) and (010) planes. The indentation fracture method indicated that Kc = 0.88-1.2 MPa m 1 2 in an inert environment for YBaCuO crystals without the 211 particles, when the crack plane is the (100) plane or the (010) plane. The presence of the 211 particles in the 123 matrix increased the fracture toughness in this direction up to 1.6-2.1 MPa m 1 2.

本文言語English
ページ(範囲)103-110
ページ数8
ジャーナルPhysica C: Superconductivity and its applications
203
1-2
DOI
出版ステータスPublished - 1992 12月 1
外部発表はい

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

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