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

42 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.

元の言語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
発行部数1-2
DOI
出版物ステータスPublished - 1996 1 20
外部発表Yes

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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