Self-sustaining reduction of MoO3 by the Mg–C mixture

The possibility of molybdenum oxide (MoO3) reduction by the Mg-C mixture was investigated using a self-sustaining combustion regime. Thermodynamic analyses of the MoO3-xMg-yC system were performed. The optimal ranges of x and y coefficients were found to ensure complete reduction of MoO3 to metallic...

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Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2010-09, Vol.172 (3), p.267-271
Main Authors: Aydinyan, S V, Gumruyan, Zh, Manukyan, Kh V, Kharatyan, S L
Format: Article
Language:English
Subjects:
Combustion
Magnesium
Molybdenum
Molybdenum oxides
Optimization
Phase composition
Process parameters
Reduction
Thermodynamics
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Summary:The possibility of molybdenum oxide (MoO3) reduction by the Mg-C mixture was investigated using a self-sustaining combustion regime. Thermodynamic analyses of the MoO3-xMg-yC system were performed. The optimal ranges of x and y coefficients were found to ensure complete reduction of MoO3 to metallic molybdenum. The influence of x and y values on the process parameters (e.g. temperature, front propagation velocity), phase composition and the structure of products were investigated experimentally. Optimum reduction conditions for MoO3 to fine (1-3 micron) molybdenum powder were defined. A possible reduction mechanism for molybdenum oxide to metallic molybdenum is proposed.
ISSN:0921-5107
DOI:10.1016/j.mseb.2010.05.028