Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 59: Issue 3
Modeling of the DTG Curves for Oxidation of a Nanosized Molybdenum Ferrite Coupling Mechanics and Diffusion
Authors:
V. Nivoix Université de Rouen, LASTSM, IUT 76821 Mont Saint Aignan Cedex France 76821 Mont Saint Aignan Cedex France

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P. Perriat INSA de Lyon, GEMPPM-UMR CNRS 5510 20, avenue Albert Einstein 69621 Villeurbanne Cedex France 20, avenue Albert Einstein 69621 Villeurbanne Cedex France

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B. Gillot Laboratoire de Recherches sur la Réactivité des Solides, UMR CNRS 5613 9, avenue Alain Savary BP 47870-21078 Dijon Cedex France 9, avenue Alain Savary BP 47870-21078 Dijon Cedex France

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Pages:
847–858
Online Publication Date:
02 Nov 2004
Publication Date:
01 Mar 2000
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1010118207582
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Abstract  

From a model for isothermal oxidation kinetics in nanosized ferrite spinels based on a diffusion-induced stress effect, the authors present a modeling of the DTG curves for the oxidation of Fe2+ and Mo3+ cations on octahedral sites of a molybdenum ferrite. This has been made by considering that the chemical diffusion coefficient is given by the relation
\documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $$\tilde D = D_o \exp \left( {\frac{{E'_{\text{a}} + pV_{\text{a}} }}{{RT}}} \right)$$ \end{document}
, when Do is a pre-exponential factor, Ea′ an activation energy and Va an activation energy induced by the oxidation.
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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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