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Elastic Properties of Fe-Ni-Mg at High Pressure from First-Principles Study
Linköping University, Department of Physics, Chemistry and Biology.
2010 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The purpose of this diploma project has been to investigate the elastic properties of hexagonal close-packed Fe-Ni-Mg alloys at high pressure. Recent research has suggested that iron and magnesium can form an alloy under high pressure because of the great compressibility of the magnesium atoms. This also makes it possible for magnesium alloying with nickel atoms which are very similar to iron so that we get Fe-Ni-Mg alloys. Learning more about the elastic properties of iron alloys at high pressure will give us a better understanding of the inner core of our planet, which is believed to be composed primarily of iron. The calculations are based on a ab-inito method supported on the Density Functional Theory. The calculations were performed with a simulation package based on the Exact Muffin-Tin Orbitals theory, in conjuction with the Coherent Potential Approximation. The effects that small impurities can have on iron are remarkable.

Place, publisher, year, edition, pages
2010. , 48 p.
Keyword [en]
elastic properties modulus pressure iron alloys dft
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-63623ISRN: LITH-IFM-A-EX–10/2375–SEOAI: oai:DiVA.org:liu-63623DiVA: diva2:381744
Subject / course
Physiological Measurements
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2010-12-28 Created: 2010-12-28 Last updated: 2012-09-18Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf