Effect of temperature variation on the phase transformation in the reaction sintering of BiFeO3 ceramics

被引：10

作者：

Cheng, G. F. ^{[1
,2
,3
]}

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

Liu, W. ^{[1
]}

Wu, X. S. ^{[2
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Anal & Testing Ctr Inorgan Mat, Shanghai 200050, Peoples R China

[2] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[3] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 143卷

关键词：

Sintering; Phase transformation; HT-XRD; BiFeO3; ceramics;

D O I：

10.1016/j.matlet.2014.12.121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The phase transformation for the growth processing of BiFeO3 ceramics are in-situ studied using high temperature X-ray diffraction. The reaction equation and thermodynamic stability behavior in the sintering process are also discussed. Results show that Fe2O3 does not react with Bi2O3 until the phase transforms from the monoclinic into the cubic. Impurity phases Bi25FeO39 and Bi2Fe4O9 are the transient phases in the reaction sintering process. Meanwhile sintering temperature is inversely proportional to the heating rate, which may relate to the procedure of-phase nucleation, decomposition and transformation. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：330 / 332

页数：3

共 18 条

[1] PREPARATION OF SINGLE-PHASE POLYCRYSTALLINE BIFEO3 [J].