Abstract
The thermochemical properties of Cu2O3 were calculated. The stability of Cu2O3 was studied with the help of TM methods. It was shown that this oxide can exist in oxygen atmosphere (P=105 Pa) at temperatures below 380 K.
A variant of the ISIP model was used with TM to determine the Cu+, Cu2+ and Cu3+ contents and oxygen indexes in YBa2Cu3Ox (123-Ox), YBa2Cu3.5Oy (123.5-Oy), YBa2Cu4Oz (124-Oz), YBa2Cu5Oq (125-Oq) and YBa2Cu6Om (126-Om) solutions at 100–1200 K in oxygen medium (P=105 Pa).
Methods for determination of some thermodynamic properties and oxygen indices are suggested for a superconductor family in the system YBaCuO.
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This work was supported by the Russian Fund for Fundamental Investigations (Project N96-03-32107).
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Moiseev, G., Vatolin, N. Application of model of ideal solution of interaction products (ISIP) and thermodynamic modeling (TM) for description of superconducting phases in the system YBaCuO. Journal of Thermal Analysis 48, 1069–1084 (1997). https://doi.org/10.1007/BF01979154
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DOI: https://doi.org/10.1007/BF01979154