Analysis of Literature Models on Viscosity of Binary Liquid Metallic Alloys on the Example of the Cu-Ag System

Budai, István; Benkő, Mária Z.; Kaptay, George

doi:10.4028/www.scientific.net/msf.473-474.309

Cited by 27 publications

(14 citation statements)

References 13 publications

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“…Moreover, it has been argued [33] that, in the simplest way, the pre-exponential factor of the alloy,ĝ 1 , is expressed as a function of the concentrations in the following way, if g Al 1 is the pre-exponential factor of Al and g Cu 1 the one of Cu:…”

Section: Modelingmentioning

confidence: 99%

Viscosity of Al–Cu liquid alloys: measurement and thermodynamic description

et al. 2012

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In the present work a high temperature oscillating cup viscometer has been used to measure the viscosities of liquid binary Al-Cu alloys. The dependence of viscosity on temperature is well described by the Arrhenius law. For constant temperature, the viscosity as a function of copper concentration exhibits a maximum at a mole fraction x Cu = 0.7. This might be due to a pronounced chemical short range order in the liquid phase at this composition. As the comparison of existing phenomenological models describing viscosity as a function of composition to the experimental data is unsatisfactory, a new model for the viscosity has been developed within this work based only on a few assumptions and using the enthalpy of mixing as input parameter which is easily accessible. The agreement between model calculation and experimental data is excellent.

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Section: Modelingmentioning

confidence: 99%

Viscosity of Al–Cu liquid alloys: measurement and thermodynamic description

et al. 2012

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“…On the other hand, a variety of model equations for the viscosity of multicomponent liquids-for recent reviews see Refs. [5,6] discussed in very detail in terms of structural changes in the liquid state, e.g. [7,8].…”

Section: Introductionmentioning

confidence: 99%

A statistical approach to estimate the experimental uncertainty of viscosity data obtained by the oscillating cup technique

Grüner

Hoyer

2009

Journal of Alloys and Compounds

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“…Moreover, the study of the mixing behaviours of the initial melt at different temperatures experimentally have many constraints, such as difficulty in controlling temperatures, tedious, time consuming, high economical costs and developing new devices having high temperature and corrosion resistances. These difficulties have been to some extent resolved by theoretician by developing different modeling equations (Flory, 1942;Jordan, 1970;Bhatia & Hargrove, 1974;Lele & Ramchandrarao, 1981;Ruppersberg & Reiter, 1982;Hoshino, 1983;Young, 1992;Singh & Sommer, 1992;Budai, Benko & Kaptay, 2005;Kaptay, 2008Kaptay, , 2015Adhikari, Singh & Jha, 2010;Adhikari, 2011;Yadav, Jha & Adhikari, 2014) to study the mixing behaviours of the liquid alloys at the melting temperatures and interpolating/extrapolating these results at different elevated temperatures. In the light of such fundamental importance, we have extended regular associated solution model (Jordan, 1970;Lele & Ramchandrarao, 1981;Adhikar, Singh & Jha, 2010;Adhikari, 2011;Yadav, Jha & Adhikari, 2014) and employed it to predict the thermodynamic, structural and surface properties of the liquid Tl−Na alloys at higher temperatures (Yadav et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Theoretical Modeling to Predict the Thermodynamic, Structural, Surface and Transport Properties of the Liquid Tl−Na Alloys at different Temperatures

2017

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Theoretical modeling equations are developed by extending regular associated solution model to predict the thermodynamic and structural properties of the liquid Tl−Na alloys at higher temperatures. The thermodynamic properties have been predicted by computing activities of unassociated monomers ( and ) and free energy of mixing ( ) at temperatures 673 K, 773 K, 873 K and 973 K. The structural properties have been predicted by computing concentration fluctuation in long wavelength limit ( ), short range order parameter ( ) and ratio of mutual to intrinsic diffusion coefficients ( ) at aforementioned temperatures. These properties have been then correlated with the modified Butler's model to predict the surface properties, such as surface concentrations of free monomers ( and ) and surface tension ( ) of the alloy at above mentioned temperatures.

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Analysis of Literature Models on Viscosity of Binary Liquid Metallic Alloys on the Example of the Cu-Ag System

Abstract: The aim of this paper is to review all the existing literature models on the concentration dependence of the viscosity of binary liquid alloys and to check them against the measured viscosity values in the binary liquid Cu-Ag system at 1373K.

Cited by 27 publications

References 13 publications

Viscosity of Al–Cu liquid alloys: measurement and thermodynamic description

Viscosity of Al–Cu liquid alloys: measurement and thermodynamic description

A statistical approach to estimate the experimental uncertainty of viscosity data obtained by the oscillating cup technique

Theoretical Modeling to Predict the Thermodynamic, Structural, Surface and Transport Properties of the Liquid Tl−Na Alloys at different Temperatures

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