Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method

R. Ravinder Reddy, M. Murakami, S. Tanaka, P. Venugopal Reddy

研究成果: Article査読

44 被引用数 (Scopus)

抄録

Ultrasonic velocity measurements have been undertaken by the pulse transmission technique using Y-Ba-Cu-O samples prepared by the melt-powder-melt-growth (MPMG) process over a temperature range of 80-300 K. It has been observed that the sample exhibits a very high value of Young's and rigidity moduli, thereby indicating that the material is an excellent one from the point of view of its mechanical strength. Further, the Young's modulus apart from exhibiting a hump at around 120 K, is found to increase continuously with decreasing temperature. In the superconducting phase, however, the modulus is found to remain almost constant. It has been concluded that the observed elastic behavior, to a large extent, is analogous to that of normal oxide materials. In order to understand how far the experimentally observed behavior deviates at 120 K, the elastic moduli of the sample were also estimated theoretically and compared with the empirical values.

本文言語English
ページ(範囲)137-142
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
257
1-2
DOI
出版ステータスPublished - 1996 1月 20
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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