Wong-Ng, W.
, Cook, L.
and Suh, J.
(2002),
Subsolidus Phase Relationships of the BaO-R<sub>2</sub>O<sub>3</sub>-CuO<sub>x</sub> System Under Carbonate-Free Conditions at P<sub>O</sub><sub>2</sub> = 100 Pa and at p(<sub>O</sub><sub>2</sub>)=21kPA, Physica C-Superconductivity and Its Applications
(Accessed October 21, 2025)
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Subsolidus Phase Relationships of the BaO-R2O3-CuOx System Under Carbonate-Free Conditions at PO2 = 100 Pa and at p(O2)=21kPA
Published
Author(s)
, , J Suh
Abstract
The phase diagrams of the BaO-Gd2O3-CuOz and BaO-Er2O3-CuOz systems were determined at 0.1% O2 (810 C) using special apparatus and a procedure for preparing carbonate-free precursors based on BaO. The handling of these atmospherically sensitive compositions is described. The diagram of the BaO-Er2O3-CuOz system was confirmed to be similar to that of the Y-analog. The diagram of the BaO-Gd2O3-CuOz system exhibits different features as compared to the Er-analog. For example, in the Gd-system, while similar to the Er-analog in that both Ba4Rcu3Oz (413) and Ba6Rcu3Oz (613) phases exist, the absence of the Ba3R4O9 phase affects the tie-line relations in the region bounded by BaO, BaGd2O4, GaGd2CuO5 and Ba6GdCu3Oz.Citation
Physica C-Superconductivity and Its Applications
Volume
377
Issue
No. 1-2
Pub Type
Journals
Keywords
BaO-R203-CuOx (R=GD and Er), phase diagrams, superconductors
Citation
Issues
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Created August 1, 2002, Updated February 19, 2017