Sintering and microstuctural characterization of W6+, Nb5+ and Ti4+ iron-substituted BiFeO3

被引：36
作者：
Bernardo, M. S. [1 ]
Jardiel, T. [1 ]
Peiteado, M. [1 ]
Caballero, A. C. [1 ]
Villegas, M. [1 ]
机构：
[1] CSIC, Inst Ceram & Vidrio, Dept Electroceram, Madrid 28049, Spain
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 26期
关键词：
Multiferroic materials; X-ray diffraction; Solid state reactions; Sintering Scanning electron microscopy; Microstructure; THERMODYNAMIC STABILITY; MAGNETIC-PROPERTIES; SYSTEM; EVOLUTION; CRYSTAL;
D O I：
10.1016/j.jallcom.2011.04.087
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 sintering behaviour and the microstructural evolution of W6+, Nb5+ and Ti4+ iron-substituted BiFeO3 ceramics have been analyzed. The obtained results show that W6+ and Nb5+ ions interact with the secondary phases usually present in these materials, thus altering the solid state formation of the BiFeO3 phase. In contrast, Ti4+ ions incorporate into the perovskite structure, leading to an exceptionally low proportion of secondary phases. In addition to this, BiFe0.95Ti0.05O3 materials present a dense microstructure with submicronic and nanostructured grains, clearly smaller than those in the undoped materials. (C) 2011 Elsevier B. V. All rights reserved.
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收藏
页码：7290 / 7296
页数：7
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