Solid-state formation of lithium ferrites from mechanicallyactivated Li2CO3–Fe2O3 mixture

V. Berbenni; A. Marini; P. Matteazzi; R. Ricceri; N.J. Welham

doi:10.1016/S0955-2219(02)00150-4

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Solid-state formation of lithium ferrites from mechanicallyactivated Li2CO3–Fe2O3 mixture

Journal article

Peer reviewed

Solid-state formation of lithium ferrites from mechanicallyactivated Li2CO3–Fe2O3 mixture

V. Berbenni, A. Marini, P. Matteazzi, R. Ricceri and N.J. Welham

Journal of the European Ceramic Society, Vol.23(3), pp.527-536

2003

DOI: https://doi.org/10.1016/S0955-2219(02)00150-4

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Abstract

The formation of lithium ferrites (LiFe5O8 and LiFeO2) from mechanically activated mixtures of Li2CO3–Fe2O3 has been studied using thermal analysis (TGA, DSC), evolved gas analysis (TG/FT-IR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and particle size analysis. It is shown that mechanical activation of the precursors considerably enhances the reactivity of the solid system analysed and makes it possible to obtain reaction products with a much lower expense of thermal energy. In particular, lithium ferrites can be obtained at temperatures at least 160 °C lower than those necessary in the absence of mechanical activation. Moreover, both the microstructure and the allotropic ratio of the products, as well as the reaction path, are affected by mechanical activation.

Details

Title: Solid-state formation of lithium ferrites from mechanicallyactivated Li2CO3–Fe2O3 mixture
Authors/Creators: V. Berbenni (Author/Creator) - University of Pavia
A. Marini (Author/Creator) - University of Pavia
P. Matteazzi (Author/Creator) - University of Udine
R. Ricceri (Author/Creator) - University of Udine
N.J. Welham (Author/Creator) - Murdoch University
Publication Details: Journal of the European Ceramic Society, Vol.23(3), pp.527-536
Publisher: Elsevier Science Ltd
Identifiers: 991005540161107891
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 5 Physics; 5.77 Applied Physics; 5.77.196 Multiferroics
Web Of Science research areas: Materials Science, Ceramics
ESI research areas: Materials Science