Phase diagram of the pseudobinary system Bi-Co-O

被引：23

作者：

Jankovsky, O. ^{[1
]}

Sedmidubsky, D. ^{[1
]}

Sofer, Z. ^{[1
]}

机构：

[1] Prague Inst Chem Technol, Dept Inorgan Chem, CR-16628 Prague, Czech Republic

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2013年 / 33卷 / 13-14期

关键词：

Bi-Co-O system; Sillenite; Phase diagram; Thermodynamic properties; NEUTRON POWDER DIFFRACTION; DOPED BI2O3; CRYSTAL;

D O I：

10.1016/j.jeurceramsoc.2013.04.035

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：

Samples with different ratios of Bi2O3 and Co2O3 were prepared by ceramic route. Based on the results of differential thermal analysis, X-ray powder diffraction, SEM-EDXA and FactSage database the phase diagram of the Bi-Co-O diagram in air atmosphere was assessed and calculated using the FactSage software. The sillenite structure of Bi24Co2O39 was identified and the single phase homogeneity range of Bi24Bi2-xCoxO39, x = 0.9-2.0 was determined by Rietveld analysis and SEM-EDXA. To verify the composition in the various parts of the phase diagram at elevated temperatures, a number of high-temperature annealing experiments was performed followed by rapid quenching to room temperature. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2699 / 2704

页数：6

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