The relationship between the porosity and elastic moduli of the Bi-Pb-2212 high-Tc superconductor

R. Ravinder Reddy, M. Muralidhar, V. Hari Babu, P. Venugopal Reddy

研究成果: Article査読

14 被引用数 (Scopus)

抄録

A series of Bi-Pb-2212 high-Tc superconductors, having different porosities has been prepared by the solid-state reaction method. After the usual characterization of the samples by XRD, AC susceptibility, SEM, bulk-density and porosity studies, longitudinal (Vl) and shear (Vs) wave velocity measurements have also been undertaken by the pulse-transmission technique. Using the experimental values of Vl and Vs, the Young's moduli (E) of all the samples have been calculated and are later corrected to zero porosity by employing a number of theoretical equations. The corrected moduli are compared with the literature value, which itself has been arrived at by averaging the available single-crystalline stiffness constants. It is concluded from the results that among all the formulae, Mackenzie's equation and that proposed by the authors of the present investigation are in closest agreement with the literature value.

本文言語English
論文番号006
ページ(範囲)101-107
ページ数7
ジャーナルSuperconductor Science and Technology
8
2
DOI
出版ステータスPublished - 1995 12月 1
外部発表はい

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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