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Kinetic study and modeling of grain growth in a BaTiO3

Abstract : Kinetic of grain in a BaTiO3 powder was studied at 850°C in a various gaseous atmosperes and for different Ba/Ti ratios. The decrease in surface area from about 8m²/g to 2m²/g waas used to obtain the experimental rate of grain growth versus the partial pressure of water vapour (wich was found to accelerate the process) and versus the Ba/Ti ratio. A kinetic model involving eight elementary steps and the point defects of BaTiO3
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https://hal-emse.ccsd.cnrs.fr/emse-00610286
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Submitted on : Thursday, July 21, 2011 - 2:50:41 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:16 PM

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  • HAL Id : emse-00610286, version 1

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Françoise Gelebart, Michèle Pijolat, Michel Soustelle, Claude Magnier. Kinetic study and modeling of grain growth in a BaTiO3. Pietro Vincenzini. Ceramics: Charting the Future, Techna, pp.793-800, 1995, Advances in Science and Technology N°3B, 88-86538-02-2. ⟨emse-00610286⟩

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