Determination of SRO parameters of α-AgAl from resistivity measurement

Wolfgang Pfeiler; Peter Meisterle; Michael Zehetbauer

doi:10.1016/0001-6160(84)90008-7

Determination of SRO parameters of α-AgAl from resistivity measurement

Wolfgang Pfeiler, Peter Meisterle, Michael Zehetbauer

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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 language	English
Pages (from-to)	1053-1060
Number of pages	8
Journal	Acta Metallurgica
Volume	32
Issue number	7
DOIs	https://doi.org/10.1016/0001-6160(84)90008-7
Publication status	Published - 1984

Austrian Fields of Science 2012

103018 Materials physics

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10.1016/0001-6160(84)90008-7

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title = "Determination of SRO parameters of α-AgAl from resistivity measurement",

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.",

author = "Wolfgang Pfeiler and Peter Meisterle and Michael Zehetbauer",

year = "1984",

doi = "10.1016/0001-6160(84)90008-7",

language = "English",

volume = "32",

pages = "1053--1060",

journal = "Acta Metallurgica",

issn = "1878-0768",

number = "7",

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T1 - Determination of SRO parameters of α-AgAl from resistivity measurement

AU - Pfeiler, Wolfgang

AU - Meisterle, Peter

AU - Zehetbauer, Michael

PY - 1984

Y1 - 1984

N2 - 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.

AB - 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.

U2 - 10.1016/0001-6160(84)90008-7

DO - 10.1016/0001-6160(84)90008-7

M3 - Article

SN - 1878-0768

VL - 32

SP - 1053

EP - 1060

JO - Acta Metallurgica

JF - Acta Metallurgica

IS - 7

ER -

Determination of SRO parameters of α-AgAl from resistivity measurement

Abstract

Austrian Fields of Science 2012

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