Issue |
Europhys. Lett.
Volume 52, Number 2, October II 2000
|
|
---|---|---|
Page(s) | 151 - 157 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i2000-00417-3 | |
Published online | 01 September 2002 |
Structural changes in liquid Fe at high pressures and high temperatures from Synchrotron X-ray Diffraction
1
Laboratoire de Sciences de la Terre, ENSL 46, allée d'Italie, 69364 Lyon cedex 07, France
2
Geophysical Laboratory and Center for High Pressure Research Carnegie
Institution of Washington - 5251 Broad Branch Road NW Washington DC 20015, USA
3
Laboratoire de Minéralogie-Cristallographie, IPGP 4, place Jussieu, 75252 Paris cedex 05, France
4
ESRF, Experiments Division - B.P. 220, 38043 Grenoble cedex, France
5
Laboratoire des Isotopes Stables, IPGP - Paris, France
Received:
13
June
2000
Accepted:
31
August
2000
High-energy synchrotron X-ray diffraction measurements on liquid iron in the vicinity of the δ-γ-liquid triple point (to 2300 K and 5 GPa) reveal significant changes in the structure of the liquid upon increasing pressure and temperature. The second and third neighbor shells in the g(r) shift to shorter distances and develop new structure with increasing pressure. The results can be interpreted in terms of the liquid acquiring bcc-like local order which evolves to a mixture of bcc- and fcc-like local order as pressure and/or temperature are raised.
PACS: 62.50.+p – High-pressure and shock-wave effects in solids and liquids / 61.10.-i – X-ray diffraction and scattering / 61.20.-p – Structure of liquids
© EDP Sciences, 2000
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.