Reaction pathways in the solid state synthesis of multiferroic BiFeO3

Bernardo, M.S. and Jardiel, Teresa and Peiteado, Marco and Caballero Cuesta, Amador and Villegas Gracia, Marina (2011). Reaction pathways in the solid state synthesis of multiferroic BiFeO3. "Journal of the European Ceramic Society", v. 31 (n. 16); pp. 3407-3053. ISSN 0955-2219. https://doi.org/10.1016/j.jeurceramsoc.2011.03.0.

Description

Title: Reaction pathways in the solid state synthesis of multiferroic BiFeO3
Author/s:
  • Bernardo, M.S.
  • Jardiel, Teresa
  • Peiteado, Marco
  • Caballero Cuesta, Amador
  • Villegas Gracia, Marina
Item Type: Article
Título de Revista/Publicación: Journal of the European Ceramic Society
Date: December 2011
ISSN: 0955-2219
Volume: 31
Subjects:
Freetext Keywords: Ferrites, Perovskites, Powders-solid state reaction, Diffusion couples, Microstructure
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The obtaining of multiferroic BiFeO3 as a pure single-phase product is particularly complex since the formation of secondary phases seems to be unavoidable. The process by which these secondary impurities are formed is studied by analyzing the diffusion and solid state reactivity of the Bi2O3?Fe2O3 system. Experimental evidence is reported which indicates that the progressive diffusion of Bi3+ ions into the Fe2O3 particles governs the solid state synthesis of the perovskite BiFeO3 phase. However a competition is established between the diffusion process which tends to complete the formation of BiFeO3, and the crystallization of stable Bi2Fe4O9 mullite crystals, which tend to block that formation reaction.

More information

Item ID: 19068
DC Identifier: http://oa.upm.es/19068/
OAI Identifier: oai:oa.upm.es:19068
DOI: 10.1016/j.jeurceramsoc.2011.03.0
Official URL: http://www.sciencedirect.com/science/article/pii/S0955221911001294
Deposited by: Memoria Investigacion
Deposited on: 08 Sep 2013 08:14
Last Modified: 21 Apr 2016 17:19
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