Subsolidus Relations in the La2O3─CuO─CaO Phase Diagram and the La2O3─CuO Binary Join

J. M S Skakle*, Anthony R. West

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The phase diagram for the CuO‐rich part of the La2O3─CuO join was redetermined. La2Cu2O5 was found to have a lower limit of stability at 1002°± 5°C and an incongruent melting temperature of ∼1035°C. LagCu7O19 had both a lower (1012°± 5°C) and an upper (1027°± 5°C) limit of stability. Subsolidus phase relations were studied in the La2O3─CuO─CaO system at 1000°, 1020°, and 1050°C in air. Two ternary phases, La1.9Ca1.1Cu2O5.9 and LaCa2Cu3O8.6, were stable at these temperatures, with three binary phases, Ca2CuO3, CaCu2O3, and La2CuO4. La2Cu2O5 and La8Cu7O19 were stable only at 1020°C, and did not support solid‐solution formation.

Original languageEnglish
Pages (from-to)2199-2202
Number of pages4
JournalJournal of the American Ceramic Society
Volume77
Issue number8
DOIs
Publication statusPublished - 31 Aug 1994

Fingerprint

Phase diagrams
Melting point
Air
Temperature
La2CuO4

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Subsolidus Relations in the La2O3─CuO─CaO Phase Diagram and the La2O3─CuO Binary Join. / Skakle, J. M S; West, Anthony R.

In: Journal of the American Ceramic Society, Vol. 77, No. 8, 31.08.1994, p. 2199-2202.

Research output: Contribution to journalArticle

@article{01c76cb864974e5fa60e0e5269535d38,
title = "Subsolidus Relations in the La2O3─CuO─CaO Phase Diagram and the La2O3─CuO Binary Join",
abstract = "The phase diagram for the CuO‐rich part of the La2O3─CuO join was redetermined. La2Cu2O5 was found to have a lower limit of stability at 1002°± 5°C and an incongruent melting temperature of ∼1035°C. LagCu7O19 had both a lower (1012°± 5°C) and an upper (1027°± 5°C) limit of stability. Subsolidus phase relations were studied in the La2O3─CuO─CaO system at 1000°, 1020°, and 1050°C in air. Two ternary phases, La1.9Ca1.1Cu2O5.9 and LaCa2Cu3O8.6, were stable at these temperatures, with three binary phases, Ca2CuO3, CaCu2O3, and La2CuO4. La2Cu2O5 and La8Cu7O19 were stable only at 1020°C, and did not support solid‐solution formation.",
author = "Skakle, {J. M S} and West, {Anthony R.}",
year = "1994",
month = "8",
day = "31",
doi = "10.1111/j.1151-2916.1994.tb07119.x",
language = "English",
volume = "77",
pages = "2199--2202",
journal = "Journal of the American Ceramic Society",
issn = "0002-7820",
publisher = "Wiley-Blackwell",
number = "8",

}

TY - JOUR

T1 - Subsolidus Relations in the La2O3─CuO─CaO Phase Diagram and the La2O3─CuO Binary Join

AU - Skakle, J. M S

AU - West, Anthony R.

PY - 1994/8/31

Y1 - 1994/8/31

N2 - The phase diagram for the CuO‐rich part of the La2O3─CuO join was redetermined. La2Cu2O5 was found to have a lower limit of stability at 1002°± 5°C and an incongruent melting temperature of ∼1035°C. LagCu7O19 had both a lower (1012°± 5°C) and an upper (1027°± 5°C) limit of stability. Subsolidus phase relations were studied in the La2O3─CuO─CaO system at 1000°, 1020°, and 1050°C in air. Two ternary phases, La1.9Ca1.1Cu2O5.9 and LaCa2Cu3O8.6, were stable at these temperatures, with three binary phases, Ca2CuO3, CaCu2O3, and La2CuO4. La2Cu2O5 and La8Cu7O19 were stable only at 1020°C, and did not support solid‐solution formation.

AB - The phase diagram for the CuO‐rich part of the La2O3─CuO join was redetermined. La2Cu2O5 was found to have a lower limit of stability at 1002°± 5°C and an incongruent melting temperature of ∼1035°C. LagCu7O19 had both a lower (1012°± 5°C) and an upper (1027°± 5°C) limit of stability. Subsolidus phase relations were studied in the La2O3─CuO─CaO system at 1000°, 1020°, and 1050°C in air. Two ternary phases, La1.9Ca1.1Cu2O5.9 and LaCa2Cu3O8.6, were stable at these temperatures, with three binary phases, Ca2CuO3, CaCu2O3, and La2CuO4. La2Cu2O5 and La8Cu7O19 were stable only at 1020°C, and did not support solid‐solution formation.

UR - http://www.scopus.com/inward/record.url?scp=0028493466&partnerID=8YFLogxK

U2 - 10.1111/j.1151-2916.1994.tb07119.x

DO - 10.1111/j.1151-2916.1994.tb07119.x

M3 - Article

VL - 77

SP - 2199

EP - 2202

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

IS - 8

ER -