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Properties of liquid iron along the melting line up to Earth-core pressures.
MedLine Citation:
PMID:  23756492     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We report a molecular dynamics study of the transport coefficients and the infinite frequency shear modulus of liquid iron at high temperatures and high pressures. We observe a simultaneous rise of both the shear viscosity and the diffusion coefficient along the melting line and estimate whether liquid iron can vitrify under Earth-core conditions. We show that in the conditions of the model studied in our work iron demonstrates a moderate increase of viscosity along the melting line. It is also demonstrated that at the limit of high temperatures and high pressures the liquid iron behaves similarly to the soft sphere system with exponent n ≈ 4.6.
Authors:
Yu D Fomin; V N Ryzhov; V V Brazhkin
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-6-12
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  25     ISSN:  1361-648X     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-6-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  -    
Other Details:
Languages:  ENG     Pagination:  285104     Citation Subset:  -    
Affiliation:
Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk 142190, Moscow, Russia.
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