Phase stability of the mixed rare-earth yttrium/erbium and yttrium/ytterbium barium cuprates, RE0.5 RE′0.5 Ba2Cu3O 7-x (RE = rare-earth ), and 'YBa2Cu3O7-x (YBCO) + BaF2'

J. L. MacManus-Driscoll; J. A.G. Nelstrop; A. Berenov; X. Qi

doi:10.1016/S0921-4534(02)02059-2

Phase stability of the mixed rare-earth yttrium/erbium and yttrium/ytterbium barium cuprates, RE_0.5 RE′_0.5 Ba₂Cu₃O _7-x (RE = rare-earth ), and 'YBa₂Cu₃O_7-x (YBCO) + BaF₂'

J. L. MacManus-Driscoll, J. A.G. Nelstrop, A. Berenov, X. Qi

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A thermodynamic study of the phase stability of the mixed rare-earth barium cuprates, RE_0.5RE′_0.5Ba₂Cu₃O_7-x (RE/RE′BCO, RE = Y, RE′ = Er, Yb) and 'YBCO + 25 wt.% BaF₂' was carried out over the temperature range 800-960 °C and pO₂ range 3.0 × 10^-4 to 2.1 × 10^-1 atm O₂, using a coulometric titration technique. At temperatures, T, less than the peritectic temperature, T_p, the phase stabilities of the mixed rare-earth compounds lie between the two single rare-earth parent systems. However, at T > T_p the phase stabilities of the mixed rare-earth compounds depend on the solubilities of the rare-earths in the melt. The stability of 'YBCO + BaF₂' is reduced compared to pure YBCO and is very close to pure ErBa₂Cu₃O_7-x (ErBCO).

Original language	English
Pages (from-to)	507-513
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	384
Issue number	4
DOIs	https://doi.org/10.1016/S0921-4534(02)02059-2
Publication status	Published - 2003 Feb 15

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(02)02059-2

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title = "Phase stability of the mixed rare-earth yttrium/erbium and yttrium/ytterbium barium cuprates, RE0.5 RE′0.5 Ba2Cu3O 7-x (RE = rare-earth ), and 'YBa2Cu3O7-x (YBCO) + BaF2'",

abstract = "A thermodynamic study of the phase stability of the mixed rare-earth barium cuprates, RE0.5RE′0.5Ba2Cu3O7-x (RE/RE′BCO, RE = Y, RE′ = Er, Yb) and 'YBCO + 25 wt.% BaF2' was carried out over the temperature range 800-960 °C and pO2 range 3.0 × 10-4 to 2.1 × 10-1 atm O2, using a coulometric titration technique. At temperatures, T, less than the peritectic temperature, Tp, the phase stabilities of the mixed rare-earth compounds lie between the two single rare-earth parent systems. However, at T > Tp the phase stabilities of the mixed rare-earth compounds depend on the solubilities of the rare-earths in the melt. The stability of 'YBCO + BaF2' is reduced compared to pure YBCO and is very close to pure ErBa2Cu3O7-x (ErBCO).",

author = "MacManus-Driscoll, {J. L.} and Nelstrop, {J. A.G.} and A. Berenov and X. Qi",

year = "2003",

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doi = "10.1016/S0921-4534(02)02059-2",

language = "English",

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Phase stability of the mixed rare-earth yttrium/erbium and yttrium/ytterbium barium cuprates, RE_0.5 RE′_0.5 Ba₂Cu₃O _7-x (RE = rare-earth ), and 'YBa₂Cu₃O_7-x (YBCO) + BaF₂'. / MacManus-Driscoll, J. L.; Nelstrop, J. A.G.; Berenov, A. et al.
In: Physica C: Superconductivity and its applications, Vol. 384, No. 4, 15.02.2003, p. 507-513.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Phase stability of the mixed rare-earth yttrium/erbium and yttrium/ytterbium barium cuprates, RE0.5 RE′0.5 Ba2Cu3O 7-x (RE = rare-earth ), and 'YBa2Cu3O7-x (YBCO) + BaF2'

AU - MacManus-Driscoll, J. L.

AU - Nelstrop, J. A.G.

AU - Berenov, A.

AU - Qi, X.

PY - 2003/2/15

Y1 - 2003/2/15

N2 - A thermodynamic study of the phase stability of the mixed rare-earth barium cuprates, RE0.5RE′0.5Ba2Cu3O7-x (RE/RE′BCO, RE = Y, RE′ = Er, Yb) and 'YBCO + 25 wt.% BaF2' was carried out over the temperature range 800-960 °C and pO2 range 3.0 × 10-4 to 2.1 × 10-1 atm O2, using a coulometric titration technique. At temperatures, T, less than the peritectic temperature, Tp, the phase stabilities of the mixed rare-earth compounds lie between the two single rare-earth parent systems. However, at T > Tp the phase stabilities of the mixed rare-earth compounds depend on the solubilities of the rare-earths in the melt. The stability of 'YBCO + BaF2' is reduced compared to pure YBCO and is very close to pure ErBa2Cu3O7-x (ErBCO).

AB - A thermodynamic study of the phase stability of the mixed rare-earth barium cuprates, RE0.5RE′0.5Ba2Cu3O7-x (RE/RE′BCO, RE = Y, RE′ = Er, Yb) and 'YBCO + 25 wt.% BaF2' was carried out over the temperature range 800-960 °C and pO2 range 3.0 × 10-4 to 2.1 × 10-1 atm O2, using a coulometric titration technique. At temperatures, T, less than the peritectic temperature, Tp, the phase stabilities of the mixed rare-earth compounds lie between the two single rare-earth parent systems. However, at T > Tp the phase stabilities of the mixed rare-earth compounds depend on the solubilities of the rare-earths in the melt. The stability of 'YBCO + BaF2' is reduced compared to pure YBCO and is very close to pure ErBa2Cu3O7-x (ErBCO).

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Phase stability of the mixed rare-earth yttrium/erbium and yttrium/ytterbium barium cuprates, RE_0.5 RE′_0.5 Ba₂Cu₃O _7-x (RE = rare-earth ), and 'YBa₂Cu₃O_7-x (YBCO) + BaF₂'

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