Studies on the thermal stability of BiFeO3 and the phase diagram of Bi-Fe-O system

被引：10
作者：
Meera, A. V. [1 ]
Ganesan, Rajesh [1 ]
Gnanasekaran, T. [1 ]
机构：
[1] Indira Gandhi Ctr Atom Res, HBNI, Mat Chem & Met Fuel Cycle Grp, Mat Chem Div, Kalpakkam 603102, Tamil Nadu, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 790卷
关键词：
Coolant; Bi-Fe-O system; Equilibration; Phase diagram; Thermal stability; Emf measurement; SOLID-STATE SYNTHESIS; MOLAR GIBBS ENERGY; THERMODYNAMIC STABILITY; STANDARD; ACTIVATION;
D O I：
10.1016/j.jallcom.2019.03.205
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The thermal stability of BiFeO3 was examined by different experimental techniques and found that it is metastable at low temperatures and it attains thermodynamic stability at around 940 K. Long term equilibration studies at 773 and 1023 K, and characterization of coexisting phases by XRD revealed the phase fields. Based on this, the isothermal section of the ternary phase diagram of Bi-Fe-O system was constructed at 773 and 1023 K. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：1108 / 1118
页数：11
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