Document Detail

In situ rheological measurements at extreme pressure and temperature using synchrotron X-ray diffraction and radiography.
MedLine Citation:
PMID:  19844009     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Dramatic technical progress seen over the past decade now allows the plastic properties of materials to be investigated under extreme pressure and temperature conditions. Coupling of high-pressure apparatuses with synchrotron radiation significantly improves the quantification of differential stress and specimen textures from X-ray diffraction data, as well as specimen strains and strain rates by radiography. This contribution briefly reviews the recent developments in the field and describes state-of-the-art extreme-pressure deformation devices and analytical techniques available today. The focus here is on apparatuses promoting deformation at pressures largely in excess of 3 GPa, namely the diamond anvil cell, the deformation-DIA apparatus and the rotational Drickamer apparatus, as well as on the methods used to carry out controlled deformation experiments while quantifying X-ray data in terms of materials rheological parameters. It is shown that these new techniques open the new field of in situ investigation of materials rheology at extreme conditions, which already finds multiple fundamental applications in the understanding of the dynamics of Earth-like planet interior.
Paul Raterron; S??bastien Merkel
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-09-25
Journal Detail:
Title:  Journal of synchrotron radiation     Volume:  16     ISSN:  1600-5775     ISO Abbreviation:  J Synchrotron Radiat     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-21     Completed Date:  2010-01-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9888878     Medline TA:  J Synchrotron Radiat     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  748-56     Citation Subset:  -    
Laboratoire de Structure et Propri??t??s de l'Etat Solide, CNRS 8008, Universit?? de Lille 1, F-59655 Villeneuve d'Ascq Cedex, France.
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