| Type de publication : |
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Articles dans des revues avec comité de lecture |
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| Titre : |
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Synthesis and crystallization pathway of Na0.5Bi0.5TiO3 thin film obtained by a modified sol-gel route |
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| Auteur(s) : |
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Fabien Remondiere ( ) 1, B. Malic 2, M. Kosec 2, Jean-Pierre Mercurio 1 |
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| Laboratoire : |
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| Équipe de recherche : |
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Axe 3 : organisation structurale multiéchelle des matériaux |
| Résumé : |
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As a lead-free candidate for electronic application, Na0.5Bi0.5TiO3 (NBT) thin films were produced by a 2-methoxyethanol sol–gel route and CSD method. Thermal decomposition and crystallization pathway of the alkoxide-based precursor have been studied by thermal analysis and X-ray diffraction (XRD) techniques. No transitory nanocrystalline phase was detected during the crystallization process of NBT. As a consequence, the nucleation of the stable perovskite phase occurred at low temperature (<500 ◦C). The parameters of the post-coating steps, i.e. drying and pyrolysis temperatures were chosen according to thermogravimetric data. Studies of the thermal annealing for crystallization are presented and discussed in terms of microstructure features from field-emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) observations. |
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Langue du texte
intégral : |
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Anglais |
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| Journal : |
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Journal of European Ceramic Society |
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| Audience : |
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internationale |
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| Date de publication : |
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2007 |
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| Volume : |
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27 |
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| Page, identifiant, ... : |
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4363-4366 |
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| Mots Clés : |
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Films – Sol–gel processes – Perovskites – Ferroelectric properties – Na0.5Bi0.5TiO3 (NBT) |
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