Paper Title:
The Stability Range of Lead Oxide Compounds in Bi-System High Temperature Superconducting Materials
  Abstract

The stability range of lead oxide compounds Pb3Sr2.5Bi0.5Ca2CuOy (3321) phase in Bi-system high temperature superconducting materials has been investigated. In this study (Bi,Pb)2Sr2Ca2Cu3Ox (BSCCO) powder was heat treated in different oxygen partial pressure and different temperature. The formation and the relative volume fraction of the 3321 phase were determined by X-ray diffraction. The microstructure of the quenched pellets was observed using SEM. Experimental results show that the stability range of the 3321 phase depends on both the temperature and oxygen partial pressure. A three dimensional plot of relative 3321 phase formation was obtained for BSCCO powder in which the main phase is (Bi,Pb)-2212 at different temperature and oxygen partial pressure.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
719-722
DOI
10.4028/www.scientific.net/KEM.336-338.719
Citation
M. Y. Li, X. W. Qi, Z. Y. Yu, Z. H. Han, "The Stability Range of Lead Oxide Compounds in Bi-System High Temperature Superconducting Materials", Key Engineering Materials, Vols. 336-338, pp. 719-722, 2007
Online since
April 2007
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$32.00
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