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Etude cinétique et cristallographique de la réduction de l'hématite en magnétite par le monoxyde de carbone à températures élevées (700-950 °C)

Abstract : During hematite-magnetite reduction there is an important cristallographic change. Hematite is rhomboedral and magnetite is cubic (Fcc). There is topotactical relationships between the two oxides. The first part is the kinetic study of hematite single crystal having a parallelepipedic shape. The second part is the study of the evolution of the crystallographic texture of the magnetite layer between the interface and surface. These two studies help us to understand the kinetical behaviour of the reaction
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El-Habib Ahra. Etude cinétique et cristallographique de la réduction de l'hématite en magnétite par le monoxyde de carbone à températures élevées (700-950 °C). Matériaux. Université Paul Verlaine - Metz, 1993. Français. ⟨NNT : 1993METZ020S⟩. ⟨tel-01775488⟩

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