Title of article
Grain structure of the Earthʹs inner core
Author/Authors
Venet، نويسنده , , Lucile and Duffar، نويسنده , , Thierry and Deguen، نويسنده , , Renaud، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
4
From page
513
To page
516
Abstract
The coarsening rate of an initial grain structure is calculated and compared to the inner core growth rate. An estimate of the present size of the grains in the centre of the core varies from 560 m to 12 km, depending on the value taken for the diffusion coefficient of iron in the core. Regardless of the hypotheses chosen, this size is homogeneous inside the inner core.
Keywords
Single crystal , Grain coarsening , Grain structure , Earthיs core , Graine terrestre , Structure de grain , Monocristal , Grossissement de grains
Journal title
Comptes Rendus Geoscience
Serial Year
2009
Journal title
Comptes Rendus Geoscience
Record number
2280941
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