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Interfacial Properties Prediction of Liquid Iron-Si Inclusion-MgO Refractory

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Abstract:

A thermodynamic model for the prediction of interfacial tension of liquid iron, inclusion and solid oxide substrate/refractory was evaluated. The combined Good’s and Young’s equations were used for high temperature liquid metal-solid oxide substrate-inclusion system to evaluate the interfacial tensions. The study predicts the liquid silicon (as model inclusion/impurity) adherence on the solid oxide substrate/refractory (MgO) in a liquid iron melt. The calculated results for interfacial tension between liquid iron-MgO values decreased from 1798 to 1026 ergs/cm2 as the temperature increases from 1823 to 1933 K, respectively. The Gibbs energy of adhesion for liquid silicon-MgO substrate was calculated shows that silicon adhesion to MgO substrate increases with increasing surface tension of liquid Fe/MgO and with decreasing temperature.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

390-393

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.390

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Online since:

June 2010

Authors:

Debabrata Pradhan, Ramana G. Reddy

Keywords:

Adhesion, Gibbs Energy of Adhesion, Interface Tension, Surface Tension

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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