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Inorganic Chemistry Division (II)


Number: 1999-049-1-200 [ 990491/200/00 ]

Title: Thermodynamic characterization of high-temperature superconductors in the yttrium-barium-copper-oxygen system

Task Group
G.F. Voronin

Members: M.Chase, S. Degterov, J.Karpinsky, and E. Rudnyi

Completion Date: 2007 - project completed

The aim of the project is to obtain and recommend for use in chemical researches, design and practical calculations a set of self-consistent thermodynamic data for three high-temperature superconductors in the Y-Ba-Cu-O system.

This project includes:

(1) critical assessment and accommodation of existing thermodynamic data for solid phases Y123, Y247, Y124 and liquid solutions of components

(2) analytical representation of the Gibbs energy functions for these phases, and

(3) computer-assisted optimization analysis to obtain a set of functions parameters with the best fitting to the experimental results and fulfillment of thermodynamic relations.

The first stage of this project concerning the Y123 solid solution is completed and the corresponding technical report is published in Pure Appl. Chem. 72(3), pp. 463- 477, 2000

A second paper, titled 'Thermodynamic modeling of superconducting phases in the yttrium–barium–copper–oxygen system' has been published in 2007 in Physica C: Superconductivity, Vol 454, Issues 1-2, pp. 70-76 [doi:10.1016/j.physc.2007.01.014]

Project completed


Last update: 10 September 2007

<project announcement published in Chem. Int. 23(1) 2001>


Questions or Comments about this Project
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Page last modified 10 September 2007
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