Subsolidus Phase Relations of the CaO-REOx-CuO Systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) at 900 °C in Air

Jean-Claude Grivel

doi:10.1007/s11669-016-0489-4

Subsolidus Phase Relations of the CaO-REO_x-CuO Systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) at 900 °C in Air

Jean-Claude Grivel

Department of Energy Conversion and Storage

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The subsolidus phase relations of the CaO-REO_x-CuO systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) were investigated in air at 900 °C. The pseudo-ternary sections with RE = Tb, Dy, Ho, Er and Lu have a similar structure. They have in common with the RE = Eu system a solid solution of Ca_0.833−xRE_xCuO_2+y composition but the system with RE = Eu differs by the presence of an Eu2CuO4 phase instead of RE₂Cu₂O₅ for RE = Tb, Dy, Ho, Er and Lu. In contrast, the CaO-ScO_1.5-CuO section does not contain a Ca_0.833−xSc_xCuO_2+ysolid solution and is dominated by the CaSc₂O₄ phase, which has no equivalent in the other systems at 900 °C in air.

Original language	English
Journal	Journal of Phase Equilibria and Diffusion
Volume	37
Issue number	5
Pages (from-to)	601-610
Number of pages	10
ISSN	1547-7037
DOIs	https://doi.org/10.1007/s11669-016-0489-4
Publication status	Published - 2016

Keywords

Air
CaO
CuO
Dy2O3
Er2O3
Eu2O3
Ho2O3
Lu2O3
Phase diagram
Phase equilibria
Sc2O3
Tb7O12

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@article{b88f07355fd64c1597ffb2fa2a3bce33,

title = "Subsolidus Phase Relations of the CaO-REOx-CuO Systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) at 900 °C in Air",

abstract = "The subsolidus phase relations of the CaO-REOx-CuO systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) were investigated in air at 900 °C. The pseudo-ternary sections with RE = Tb, Dy, Ho, Er and Lu have a similar structure. They have in common with the RE = Eu system a solid solution of Ca0.833−xRExCuO2+y composition but the system with RE = Eu differs by the presence of an Eu2CuO4 phase instead of RE2Cu2O5 for RE = Tb, Dy, Ho, Er and Lu. In contrast, the CaO-ScO1.5-CuO section does not contain a Ca0.833−xScxCuO2+y solid solution and is dominated by the CaSc2O4 phase, which has no equivalent in the other systems at 900 °C in air.",

keywords = "Air, CaO, CuO, Dy2O3, Er2O3, Eu2O3, Ho2O3, Lu2O3, Phase diagram, Phase equilibria, Sc2O3, Tb7O12",

author = "Jean-Claude Grivel",

year = "2016",

doi = "10.1007/s11669-016-0489-4",

language = "English",

volume = "37",

pages = "601--610",

journal = "Journal of Phase Equilibria and Diffusion",

issn = "1547-7037",

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TY - JOUR

T1 - Subsolidus Phase Relations of the CaO-REOx-CuO Systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) at 900 °C in Air

AU - Grivel, Jean-Claude

PY - 2016

Y1 - 2016

N2 - The subsolidus phase relations of the CaO-REOx-CuO systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) were investigated in air at 900 °C. The pseudo-ternary sections with RE = Tb, Dy, Ho, Er and Lu have a similar structure. They have in common with the RE = Eu system a solid solution of Ca0.833−xRExCuO2+y composition but the system with RE = Eu differs by the presence of an Eu2CuO4 phase instead of RE2Cu2O5 for RE = Tb, Dy, Ho, Er and Lu. In contrast, the CaO-ScO1.5-CuO section does not contain a Ca0.833−xScxCuO2+y solid solution and is dominated by the CaSc2O4 phase, which has no equivalent in the other systems at 900 °C in air.

AB - The subsolidus phase relations of the CaO-REOx-CuO systems (RE = Eu, Tb, Dy, Ho, Er, Lu and Sc) were investigated in air at 900 °C. The pseudo-ternary sections with RE = Tb, Dy, Ho, Er and Lu have a similar structure. They have in common with the RE = Eu system a solid solution of Ca0.833−xRExCuO2+y composition but the system with RE = Eu differs by the presence of an Eu2CuO4 phase instead of RE2Cu2O5 for RE = Tb, Dy, Ho, Er and Lu. In contrast, the CaO-ScO1.5-CuO section does not contain a Ca0.833−xScxCuO2+y solid solution and is dominated by the CaSc2O4 phase, which has no equivalent in the other systems at 900 °C in air.

KW - Air

KW - CaO

KW - CuO

KW - Dy2O3

KW - Er2O3

KW - Eu2O3

KW - Ho2O3

KW - Lu2O3

KW - Phase diagram

KW - Phase equilibria

KW - Sc2O3

KW - Tb7O12

U2 - 10.1007/s11669-016-0489-4

DO - 10.1007/s11669-016-0489-4

M3 - Journal article

SN - 1547-7037

VL - 37

SP - 601

EP - 610

JO - Journal of Phase Equilibria and Diffusion

JF - Journal of Phase Equilibria and Diffusion

IS - 5

ER -