liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Iron and its alloys under high pressure
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics .
2008 (English)In: International Alloy Conference,2008, Linköping, Sweden: Linköpings University , 2008Conference paper (Refereed)
Abstract [en]

Cosmochemical, geochemical, and geophysical studies indicate that Earth's core contains iron with substantial (5 to 15%) amounts of nickel. We address structural properties of pure and nickel-doped iron from both first-principles theory and experiment. In particular we show that the face-centered cubic (fcc) phase may become as stable as the hexagonal close-packed (hcp) phase at pressures around 300-360 GPa and temperatures around 5000-6000 K, corresponding to the Earth's core conditions. Our temperature-quenched experiments indicate that the face-centered cubic (fcc) phase of pure iron can exist in the pressure-temperature region above 160 GPa and 3700 K. Further, we show that at pressures above 225 GPa and temperatures over 3400 K, Fe0.9Ni0.1 alloy adopts the body-centered cubic (bcc) structure

Place, publisher, year, edition, pages
Linköping, Sweden: Linköpings University , 2008.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-44826Local ID: 77782OAI: diva2:265688
Available from: 2009-10-10 Created: 2009-10-10

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Simak, Sergey
By organisation
The Institute of TechnologyTheoretical Physics
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 9 hits
ReferencesLink to record
Permanent link

Direct link