ISOTHERMAL SECTION OF THE La2O3-Lu2O3-Er2O3 TERNARY PHASE DIAGRAM AT 1250°С

被引：0
|
作者：
Chudinovych, Olga [1 ,2 ]
机构：
[1] NAS Ukraine, Frantsevich Inst Problems Mat Sci, 3 Krzhizhanovsky Str, UA-03142 Kiev, Ukraine
[2] Natl Tech Univ Ukraine, Igor Sikorsky Kyiv Polytech Inst, 4 Peremohy Ave, UA-03050 Kiev, Ukraine
来源：
CHEMISTRY JOURNAL OF MOLDOVA | 2023年 / 18卷 / 02期
关键词：
phase equilibria; lanthana; lutetia; erbia; lattice parameter; EQUILIBRIA; SYSTEM; LU2O3;
D O I：
10.19261/cjm.2023.1081
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The phase equilibria in the ternary La2O3-Lu2O3-Er2O3 system at 1250 degrees C were studied by X-ray diffraction, and electron microscopy in the overall concentration range. At 1250 degrees C in the La2O3-Lu2O3-Er2O3 system solution fields are formed based on cubic (C) modification of Lu2O3(Er2O3), hexagonal (A) modification of La2O3, as well as ordered phase structure perovskite-type LaLuO3 (LaErO3) (R). The isothermal section of the La2O3-Lu2O3-Er2O3 phase diagram at 1250 degrees C has shown the three one-phase fields (A-La2O3, R, C-Lu2O3(Er2O3)) corresponding to solid solutions based on starting components and two dual-phase fields (C+R, A+R) between them. The refined lattice parameters of the unit cells for solid solutions and microstructures of the definite field of compositions for the systems solid were determined.
引用
收藏
页码：69 / 77
页数：9
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