Investigation of the reaction between Fe2O3 and Si activated by Ball Milling

Concas, G. and Congiu, F. and Corrias, A. and Muntoni, C. and Paschina, G. and Zedda, D. (1996) Investigation of the reaction between Fe2O3 and Si activated by Ball Milling. Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences, 51 (8). pp. 915-922. ISSN 0932-0784. (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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http://zfn.mpdl.mpg.de/data/Reihe_A/51/ZNA-1996-51...

Abstract

The path of the reaction between Fe2O3 and Si, activated by high energy ball milling, has been investigated by X-ray diffraction and Mössbauer spectroscopy. Hematite reduction involves oxygen transfer from Fe to Si with the formation of intermediate phases containing Fe(II), which are then reduced to Fe(0). A steady state is reached in the milling process where the reduction of stoichiometric amounts of Fe2O3 and Si is not complete and an amount of Fe(II) in an amorphous matrix still remains. The same intermediate compounds are also observed in the milling process of mixtures with higher Fe2O3/Si molar ratio.

Item Type: Article
Uncontrolled keywords: Mechanosynthesis, Mössbauer spectroscopy, Nanocomposite, Reduction reaction, X-ray diffraction
Subjects: Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Anna Corrias
Date Deposited: 17 Dec 2014 12:17 UTC
Last Modified: 04 Dec 2017 12:48 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46235 (The current URI for this page, for reference purposes)
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