Self propagating high temperature synthesis of magnesium zinc ferrites (MgxZn1-xFe2O3): Thermal imaging and time resolved X-ray diffraction experiments

Spiers, H., Parkin, I.P., Pankhurst, Q.A., Affleck, L., Green, M.A., Caruana, D.J., Kuznetsov, M.V., Yao, J., Vaughan, G., Terry, A., and others. (2004) Self propagating high temperature synthesis of magnesium zinc ferrites (MgxZn1-xFe2O3): Thermal imaging and time resolved X-ray diffraction experiments. Journal of Materials Chemistry, 14 (7). pp. 1104-1111. ISSN 0959-9428. (doi:10.1039/b314159b) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1039/b314159b

Abstract

Spinel ferrites of the form MgxZn1-xFe 2O4 (x = 0. 0.25, 0.50, 0.75, 1.00) were prepared by self-propagating high-temperature synthesis (SHS) from reactions of iron(III), zinc and magnesium oxides, iron powder and sodium perchlorate. The driving force for the reactions is the oxidation of iron powder. Reactions were carried out in the presence of an external magnetic field of 0.2 or 1.1 T. Reaction velocity and temperatures were obtained by thermal imaging camera. The transformation of reactants to products was studied by time resolved X-ray diffraction using Rietveld refinement for determination of phase percentages. Reactions typically reached temperatures in excess of 1150°C with a timescale of complete conversion of reactant to products of 20 s. All materials were characterised by X-ray powder diffraction (XRD), energy dispersive X-ray analysis (EDXA), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), Mössbauer spectroscopy and vibrating sample magnetometry (VSM).

Item Type: Article
DOI/Identification number: 10.1039/b314159b
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - J. Mater. Chem. [Field not mapped to EPrints] AD - Department of Chemistry, Christopher Ingold Laboratory, University College London, 20 Gordon Street, London, WC1H OAJ, United Kingdom [Field not mapped to EPrints] AD - Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom [Field not mapped to EPrints] AD - Europ. Synchrt. Radiation Facility, Grenoble, France [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Ferrites, Fourier transform infrared spectroscopy, Iron powder, Magnesium compounds, Scanning electron microscopy, Sodium compounds, Synthesis (chemical), X ray diffraction, Zinc oxide, Phase percentages, Reactants, Reaction velocity, Sodium perchlorate, Materials science, iron derivative, magnesium derivative, sodium perchlorate, zinc derivative, article, high temperature, imaging, infrared spectroscopy, Mossbauer spectroscopy, scanning electron microscopy, synthesis, X ray analysis, X ray diffraction
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 21 Oct 2015 15:13 UTC
Last Modified: 29 May 2019 16:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51124 (The current URI for this page, for reference purposes)
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