Kinetic of initial sintering of oxide powders under controlled gaseous atmosphere

Abstract : The experimental rates of surface area are reported for TiO2 anatase, gamma Al2O3, CeO2, ZrO2 as a function of the influencing gases: H2O, O2, CO2, and HCl. From the determination of the rates at a fixed value of the surface area, the kinetic law takes a mathematical expression which involves the partial pressure of each gas raised to some power. Mechanistic models are proposed, which consist of the transport of cations and anions through a sequence of elementary steps involving point defects as the reactive speed.
Type de document :
Communication dans un congrès
P. Vincenzini. VIIème CIMTEC, Jun 1990, Montecatini, Italy. Elsevier, pp.1357-1362, 1991, Materials Science Monographs 66B (ISSN 0166-6010)
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Contributeur : Andrée-Aimée Toucas <>
Soumis le : jeudi 14 février 2013 - 20:06:01
Dernière modification le : mardi 23 octobre 2018 - 14:36:05

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  • HAL Id : emse-00788668, version 1

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Michèle Pijolat, Marc Dauzat, Frédéric Gruy, Alain Methivier, Marie-Agnès Prin, et al.. Kinetic of initial sintering of oxide powders under controlled gaseous atmosphere. P. Vincenzini. VIIème CIMTEC, Jun 1990, Montecatini, Italy. Elsevier, pp.1357-1362, 1991, Materials Science Monographs 66B (ISSN 0166-6010). 〈emse-00788668〉

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