Subsolidus phase relationship in the Y2O3-Mn3O4-CoOx system in air

被引：1

作者：

Song, Y. J. ^{[1
]}

He, L. M. ^{[1
]}

Yan, J. L. ^{[1
]}

机构：

[1] Guangxi Univ, Sch Resources Environm & Mat, Guangxi Key Lab Proc Nonferrous Met & Featured Ma, Nanning 530004, Guangxi, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Subsolidus phase relationship; Yttrium based oxides; Solid solutions; X-ray powder diffraction; Multiferroic materials; CRYSTAL-STRUCTURE; THERMODYNAMIC ASSESSMENT; ELECTRICAL-PROPERTIES; MANGANESE OXIDE; COBALT OXIDE; CO; EQUILIBRIA; STABILITY; SPINELS;

D O I：

10.1016/j.jeurceramsoc.2020.08.003

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The subsolidus phase relations in the Y2O3-Mn3O4-CoOx system in air were investigated by X-ray powder diffraction. All the samples were prepared by solid state reaction method. There are 8 single-phases, 9 two-phase regions and 8 three-phase regions in this system. Two solid solutions, namely o-YCoxMn1-xO3-delta with a narrow range of 0.70 <= x <= 0.76 and m-YCoxMn1-xO3-delta with a wider range of 0.28 <= x <= 0.60, were found to form. o-YCoxMn1-xO3-delta crystallizes in an orthorhombic Pnma perovskite structure, while m-YCoxMn1-xO3-delta exhibits diffraction features of either monoclinic P2(1)/n or/and orthorhombic Pnma perovskite structure. The homogeneity ranges for hexagonal YMnO3 (less than 3 at. % CoO), orthorhombic YMn2O5 (less than 4 at. % CoO) and the tetragonal spinel phase t-CoxMn3-xO4 (0-31 at. % CoO), the cubic spinel phase c-CoxMn3-xO4 (65-69 at. % CoO) were determined.

引用

页码：472 / 479

页数：8

共 38 条

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