Atomic diffusion mechanisms in a binary metallic melt

Kurzanzeige
dc.contributor.authorVoigtmann, Thomas
dc.contributor.authorMeyer, Andreasdeu
dc.contributor.authorHolland-Moritz, Dirkdeu
dc.contributor.authorStüber, Sebastiandeu
dc.contributor.authorHansen, Thomasdeu
dc.contributor.authorUnruh, Tobiasdeu
dc.date.accessioned2011-11-29T09:50:36Zdeu
dc.date.available2011-11-29T09:50:36Zdeu
dc.date.issued2008
dc.description.abstractThe relation between static structure and dynamics as measured through the diffusion coefficients in viscous multicomponent metallic melts is elucidated by the example of the binary alloy Zr64Ni36, by a combination of neutron-scattering experiments and mode-coupling theory of the glass transition. Comparison with a hard-sphere mixture shows that the relation between the different self diffusion coefficients strongly depends on chemical short-range ordering. For the Zr-Ni example, the theory predicts both diffusivities to be practically identical. The kinetics of concentration fluctuations is dramatically slower than that of self-diffusion, but the overall interdiffusion coefficient is equally large or larger due to a purely thermodynamic prefactor. This result is a general feature for non-demixing dense melts, irrespective of chemical short-range order.eng
dc.description.versionpublished
dc.identifier.citationPubl. in: EPL : Europhysics Letters ; 82 (2008), 6. - 66001deu
dc.identifier.doi10.1209/0295-5075/82/66001deu
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/17115
dc.language.isoengdeu
dc.legacy.dateIssued2011-11-29deu
dc.rightsterms-of-usedeu
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/deu
dc.subject.ddc530deu
dc.subject.pacs61.25.Mv ; 61.05.F ; 64.70.pedeu
dc.titleAtomic diffusion mechanisms in a binary metallic melteng
dc.typeJOURNAL_ARTICLEdeu
dspace.entity.typePublication
kops.citation.bibtex
@article{Voigtmann2008Atomi-17115,
  year={2008},
  doi={10.1209/0295-5075/82/66001},
  title={Atomic diffusion mechanisms in a binary metallic melt},
  number={6},
  volume={82},
  issn={0295-5075},
  journal={EPL (Europhysics Letters)},
  author={Voigtmann, Thomas and Meyer, Andreas and Holland-Moritz, Dirk and Stüber, Sebastian and Hansen, Thomas and Unruh, Tobias},
  note={Article Number: 66001}
}
kops.citation.iso690VOIGTMANN, Thomas, Andreas MEYER, Dirk HOLLAND-MORITZ, Sebastian STÜBER, Thomas HANSEN, Tobias UNRUH, 2008. Atomic diffusion mechanisms in a binary metallic melt. In: EPL (Europhysics Letters). 2008, 82(6), 66001. ISSN 0295-5075. Available under: doi: 10.1209/0295-5075/82/66001deu
kops.citation.iso690VOIGTMANN, Thomas, Andreas MEYER, Dirk HOLLAND-MORITZ, Sebastian STÜBER, Thomas HANSEN, Tobias UNRUH, 2008. Atomic diffusion mechanisms in a binary metallic melt. In: EPL (Europhysics Letters). 2008, 82(6), 66001. ISSN 0295-5075. Available under: doi: 10.1209/0295-5075/82/66001eng
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kops.identifier.nbnurn:nbn:de:bsz:352-171150deu
kops.sourcefieldEPL (Europhysics Letters). 2008, <b>82</b>(6), 66001. ISSN 0295-5075. Available under: doi: 10.1209/0295-5075/82/66001deu
kops.sourcefield.plainEPL (Europhysics Letters). 2008, 82(6), 66001. ISSN 0295-5075. Available under: doi: 10.1209/0295-5075/82/66001deu
kops.sourcefield.plainEPL (Europhysics Letters). 2008, 82(6), 66001. ISSN 0295-5075. Available under: doi: 10.1209/0295-5075/82/66001eng
kops.submitter.emailregina.fleischmann@uni-konstanz.dedeu
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source.bibliographicInfo.articleNumber66001
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source.identifier.issn0295-5075
source.periodicalTitleEPL (Europhysics Letters)
temp.target.additionalFachbereich Physikdeu

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