High temperature phase relation in the system La2O3WO3

Masahiro Yoshimura; Alain Rouanet

doi:10.1016/0025-5408(76)90070-2

High temperature phase relation in the system La₂O₃WO₃

Masahiro Yoshimura, Alain Rouanet

Department of Materials Science and Engineering

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

59 Citations (Scopus)

Abstract

The system La₂O₃WO₃, especially the La₂O₃-rich portion was studied by a thermal analysis, high temperature X-ray diffraction, annealing of fused samples, solid state reaction and DTA methods up to the liquidus. Eight intermediate phases, La₂O₃:WO₃ = 3:1, 5:2, 3:2, 1:1, 7:8, 1:2, 1:3 and 2:9, were found and characterized. In addition, two unquenchable solid solution phases based upon La₂O₃X and H, have been found. A phase diagram is presented.

Original language	English
Pages (from-to)	151-158
Number of pages	8
Journal	Materials Research Bulletin
Volume	11
Issue number	2
DOIs	https://doi.org/10.1016/0025-5408(76)90070-2
Publication status	Published - 1976 Jan 1

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "High temperature phase relation in the system La2O3WO3",

abstract = "The system La2O3WO3, especially the La2O3-rich portion was studied by a thermal analysis, high temperature X-ray diffraction, annealing of fused samples, solid state reaction and DTA methods up to the liquidus. Eight intermediate phases, La2O3:WO3 = 3:1, 5:2, 3:2, 1:1, 7:8, 1:2, 1:3 and 2:9, were found and characterized. In addition, two unquenchable solid solution phases based upon La2O3X and H, have been found. A phase diagram is presented.",

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N2 - The system La2O3WO3, especially the La2O3-rich portion was studied by a thermal analysis, high temperature X-ray diffraction, annealing of fused samples, solid state reaction and DTA methods up to the liquidus. Eight intermediate phases, La2O3:WO3 = 3:1, 5:2, 3:2, 1:1, 7:8, 1:2, 1:3 and 2:9, were found and characterized. In addition, two unquenchable solid solution phases based upon La2O3X and H, have been found. A phase diagram is presented.

AB - The system La2O3WO3, especially the La2O3-rich portion was studied by a thermal analysis, high temperature X-ray diffraction, annealing of fused samples, solid state reaction and DTA methods up to the liquidus. Eight intermediate phases, La2O3:WO3 = 3:1, 5:2, 3:2, 1:1, 7:8, 1:2, 1:3 and 2:9, were found and characterized. In addition, two unquenchable solid solution phases based upon La2O3X and H, have been found. A phase diagram is presented.

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