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RESEARCH PRODUCT
Enhancement of self-sustaining reaction by mechanical activation: case of an FeSi system
Frédéric BernardEric GaffetJean-claude NiepceCh. GrasCh. Grassubject
DiffractionMaterials scienceMechanical EngineeringSelf-propagating high-temperature synthesisAnalytical chemistryCondensed Matter PhysicsMicrostructureCombustionCharacterization (materials science)chemistry.chemical_compoundchemistryMechanics of MaterialsSpecific surface areaSilicideGeneral Materials ScienceBall milldescription
Mechanical high energy ball milling of an Fe2Si elemental powders mixture was used to activate a self sustaining combustion reaction or so-called self-propagating high-temperature synthesis (SHS) to form iron disilicide, a reaction for which the thermodynamic criterion is not favorable. A complete characterization of the milled powders before reaction was performed with energy dispersive X-ray spectrometry, specific surface measurements and X-ray diffraction profile analysis. Thermal and structural information describing the combustion front initiated by heating up a sample to 400°C in a Fe‐Si system is communicated. In order to isolate the phases involved in the gasless reaction, a time-resolved X-ray diffraction experiment was designed to study in situ the formation of silicide phases (FeSi and b-FeSi2) produced by the new process called MASHS (mechanically activated self-propagating high-temperature synthesis). © 1999 Elsevier Science S.A. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-05-01 | Materials Science and Engineering: A |