Determination of SRO parameters of α-AgAl from resistivity measurement

Wolfgang Pfeiler, Peter Meisterle, Michael Zehetbauer

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Results of resistivity measurements on Ag-7.5, 11.5, 15.5 at.% Al show the features of statistical SRO in the Warren-Cowley sense. Therefore the quasichemical concept of mixtures is used to derive SRO parameters from resistivity measurement assuming a linear relation between residual electrical resistivity and first SRO parameter with the proportionality coefficient being independent of temperature. By comparing the change of equilibrium values of resistivity and the change of α1, both as a function of temperature absolute values of α1, are calculated, which are in excellent accordance with values from diffuse X-ray scattering. Further, values of the enthalpy of mixing evaluated from calculated SRO parameters are in satisfying correspondence with calorimetric measurement.
Original languageEnglish
Pages (from-to)1053-1060
Number of pages8
JournalActa Metallurgica
Volume32
Issue number7
DOIs
Publication statusPublished - 1984

Austrian Fields of Science 2012

  • 103018 Materials physics

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