Reaction pathways in the solid state synthesis of multiferroic BiFeO 3

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 BiFeO 3. "Journal of the European Ceramic Society", v. 31 (n. 16); pp. 3047-3053. ISSN 09552219. https://doi.org/10.1016/j.jeurceramsoc.2011.03.018.

Description

Title: Reaction pathways in the solid state synthesis of multiferroic BiFeO 3
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: 2011
ISSN: 09552219
Volume: 31
Subjects:
Freetext Keywords: Ferrites; Perovskites; Powders-solidstatereaction; 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 multiferroicBiFeO3 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 solidstate 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 solidstatesynthesis 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: 12347
DC Identifier: http://oa.upm.es/12347/
OAI Identifier: oai:oa.upm.es:12347
DOI: 10.1016/j.jeurceramsoc.2011.03.018
Deposited by: Memoria Investigacion
Deposited on: 28 Aug 2012 11:46
Last Modified: 11 Oct 2014 12:58
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