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Mechanism of formation of MTiO3 (M=Sr or Ba) by the gel method

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Abstract

Strontium and barium titanates were obtained at room temperature and 60° C, respectively, by the gel method. Factors affecting the formation of the titanates, such as the nature of the reactants, temperature, pH and time were studied. It is shown that the mechanism of formation occurs through diffusion of alkaline earth cations inside the titanium dioxide (TiO2) gel particles. Thus, particle size and shape of the titanates can be controlled by determining the TiO2 gel characteristics. This is illustrated by synthesizing the titanates with spherical submicron monosized particles.

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Authors and Affiliations

  1. Instituto de Ciencia de Materiales (C) Serrano, 115 dpdo, 28006, Madrid, Spain

    M. I. Diaz-Guemes, T. González Carreño & C. J. Serna

  2. Instituto de Química-Física (Rocasolano) Serrano, 117, 28006, Madrid, Spain

    J. M. Palacios

Authors
  1. M. I. Diaz-Guemes
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  2. T. González Carreño
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  3. C. J. Serna
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  4. J. M. Palacios
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Diaz-Guemes, M.I., Carreño, T.G., Serna, C.J. et al. Mechanism of formation of MTiO3 (M=Sr or Ba) by the gel method. J Mater Sci 24, 1011–1014 (1989). https://doi.org/10.1007/BF01148791

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  • DOI: https://doi.org/10.1007/BF01148791

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