Phase composition and compatibilities at 930°C to 950°C in the system europium (III) oxide-barium oxide-copper(II) oxide in air

C. N. Pieczulewski; J. E. McAdams; Thomas O Mason

Phase composition and compatibilities at 930°C to 950°C in the system europium (III) oxide-barium oxide-copper(II) oxide in air

C. N. Pieczulewski, J. E. McAdams, Thomas O Mason

Northwestern University

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

16 Citations (Scopus)

Abstract

Phase composition and compatibilities at 930° to 950°C were determined for the system Eu₂O₃-BaO-CuO in air. The binary compound Eu₂CuO₄ dissolves Ba to the extent 0 ≤ x ≤ 0.02 in Eu_2-xBa_xCuO₄, whereas the other binary compounds, Eu₂BaO₄ and BaCuO₂, do not exhibit solid solubility. Three ternary compounds were obtained, Eu₂BaCuO₅ and two solid solution phases. The first contains the 90 K '123' superconductor and has solubility limits represented by Eu_1+xBa_2-xCu₃O_7±y, where 0 ≤ x ≤ 0.5. The second has a solubility limit represented as Eu_1+xBa_8-xCu₄O_y, where 0 ≤ x ≤ 0.44. The limited solid solution range of this phase provides insight concerning the probable solid solution range of the analogous phase in the Y₂O₃-BaO-CuO system.

Original language	English
Pages (from-to)	3088-3090
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	73
Issue number	10
Publication status	Published - Oct 1990

ASJC Scopus subject areas

Ceramics and Composites

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@article{06252c71f10845ecad77067180728bad,

title = "Phase composition and compatibilities at 930°C to 950°C in the system europium (III) oxide-barium oxide-copper(II) oxide in air",

abstract = "Phase composition and compatibilities at 930° to 950°C were determined for the system Eu2O3-BaO-CuO in air. The binary compound Eu2CuO4 dissolves Ba to the extent 0 ≤ x ≤ 0.02 in Eu2-xBaxCuO4, whereas the other binary compounds, Eu2BaO4 and BaCuO2, do not exhibit solid solubility. Three ternary compounds were obtained, Eu2BaCuO5 and two solid solution phases. The first contains the 90 K '123' superconductor and has solubility limits represented by Eu1+xBa2-xCu3O7±y, where 0 ≤ x ≤ 0.5. The second has a solubility limit represented as Eu1+xBa8-xCu4Oy, where 0 ≤ x ≤ 0.44. The limited solid solution range of this phase provides insight concerning the probable solid solution range of the analogous phase in the Y2O3-BaO-CuO system.",

author = "Pieczulewski, {C. N.} and McAdams, {J. E.} and Mason, {Thomas O}",

year = "1990",

month = oct,

language = "English",

volume = "73",

pages = "3088--3090",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

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T1 - Phase composition and compatibilities at 930°C to 950°C in the system europium (III) oxide-barium oxide-copper(II) oxide in air

AU - Pieczulewski, C. N.

AU - McAdams, J. E.

AU - Mason, Thomas O

PY - 1990/10

Y1 - 1990/10

N2 - Phase composition and compatibilities at 930° to 950°C were determined for the system Eu2O3-BaO-CuO in air. The binary compound Eu2CuO4 dissolves Ba to the extent 0 ≤ x ≤ 0.02 in Eu2-xBaxCuO4, whereas the other binary compounds, Eu2BaO4 and BaCuO2, do not exhibit solid solubility. Three ternary compounds were obtained, Eu2BaCuO5 and two solid solution phases. The first contains the 90 K '123' superconductor and has solubility limits represented by Eu1+xBa2-xCu3O7±y, where 0 ≤ x ≤ 0.5. The second has a solubility limit represented as Eu1+xBa8-xCu4Oy, where 0 ≤ x ≤ 0.44. The limited solid solution range of this phase provides insight concerning the probable solid solution range of the analogous phase in the Y2O3-BaO-CuO system.

AB - Phase composition and compatibilities at 930° to 950°C were determined for the system Eu2O3-BaO-CuO in air. The binary compound Eu2CuO4 dissolves Ba to the extent 0 ≤ x ≤ 0.02 in Eu2-xBaxCuO4, whereas the other binary compounds, Eu2BaO4 and BaCuO2, do not exhibit solid solubility. Three ternary compounds were obtained, Eu2BaCuO5 and two solid solution phases. The first contains the 90 K '123' superconductor and has solubility limits represented by Eu1+xBa2-xCu3O7±y, where 0 ≤ x ≤ 0.5. The second has a solubility limit represented as Eu1+xBa8-xCu4Oy, where 0 ≤ x ≤ 0.44. The limited solid solution range of this phase provides insight concerning the probable solid solution range of the analogous phase in the Y2O3-BaO-CuO system.

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