Chan Chung, U. and Elissalde, Catherine and Mompiou, Frédéric and Majimel, Jérôme and Gomez, Sonia and Estournès, Claude and Marinel, Sylvain and Klein, Andreas and Weill, François and Michau, Dominique and Mornet, Stéphane and Maglione, Mario Interface investigation in nanostructured BaTiO3/Silica composite ceramics. (2010) Journal of the American Ceramic Society, vol. 93 (n° 3). pp. 865-874. ISSN 0002-7820
(Document in English)
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Official URL: http://dx.doi.org/10.1111/j.1551-2916.2009.03474.x
Silica-coated ferroelectric particles are promising building blocks for functional bulk composites such as dielectric resonators, supercapacitors, or multiferroics. The ferroelectric/silica interface was fully investigated by means of high-temperature in situ X-ray diffraction, high-resolution scanning electron microscopy, and X-ray photoelectron spectroscopy. Mechanisms occurring at the interface were visualized using high-resolution postmortem and in situ transmission electron microscopy performed at different temperatures. On the light of this interface investigation, we have used advanced sintering processes such as spark plasma sintering and microwave sintering to obtain nanostructured composite ceramics and to evaluate their dielectric properties.
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