Dobson, D.P. and Alfredsson, M. and Holzapfel, C. and Brodholt, J.P. (2007) Grain boundary enrichment of iron on magnesium silicate perovskite. European Journal of Mineralogy , 19 (5). pp. 617-622. ISSN 0935-1221.
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We present a combined experimental and numerical simulations study of grain boundaries in (Fe, Mg)SiO3 perovskite. TEM observations of grain boundaries in a well equilibrated perovskite sample consistently show small but significant enrichments of Fe. This result is in good agreement with classical potentials simulations of grain boundary structures in MgSiO3 perovskite which predict substitution of iron onto grain boundaries to be energetically favourable over iron substitution in the bulk perovskite structure.
|Subjects:||Q Science > QE Geology|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences|
|Depositing User:||Maria Alfredsson|
|Date Deposited:||05 Dec 2010 00:51|
|Last Modified:||20 Jan 2012 10:07|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/26109 (The current URI for this page, for reference purposes)|
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