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Featured researches published by Elmira Moosavi-Khoonsari.


Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science | 2015

Critical Evaluation and Thermodynamic Optimization of the Na 2 O-FeO-Fe 2 O 3 -SiO 2 System

Elmira Moosavi-Khoonsari; In-Ho Jung

A complete literature review, critical evaluation, and thermodynamic optimization of phase diagrams and thermodynamic properties of the Na2O-FeO-Fe2O3-SiO2 system were performed at 1 atm total pressure. A set of optimized model parameters obtained for all phases present in this system reproduces available and reliable thermodynamic properties and phase equilibria within experimental error limits from 298 K (25 °C) to above liquidus temperatures for all compositions and oxygen partial pressures from metallic Fe saturation to 1 atm. The liquid phase was modeled based on the Modified Quasichemical Model considering the possible formation of NaFeO2 associate in the liquid state. The NaFeO2 metaoxide solid solutions containing the excess SiO2 were described within the framework of Compound Energy Formalism. Based on the thermodynamic models and model parameters, unexplored thermodynamic properties and phase diagrams of the Na2O-FeO-Fe2O3-SiO2 system were predicted.


Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science | 2016

Limitation of Sulfide Capacity Concept for Molten Slags

In-Ho Jung; Elmira Moosavi-Khoonsari

The sulfide capacity concept has been widely used in pyrometallurgy to define sulfur removal capacities of slags. Typically, the sulfide capacity is considered to be a unique slag property depending only on temperature regardless of partial pressures of oxygen and sulfur. In the present study, it is demonstrated that sulfide capacities of slags in particular those of Na2O-containing slags can vary with partial pressures of oxygen and sulfur due to large solubility of sulfide in Na2O-containing slag systems.


Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science | 2016

Thermodynamic Modeling of Sulfide Capacity of Na2O-Containing Oxide Melts

Elmira Moosavi-Khoonsari; In-Ho Jung

Thermodynamic modeling of the sulfide dissolution in the Na2O–FetO–CaO–MgO–MnO–Al2O3–SiO2 multicomponent slags was performed to investigate the desulfurization of hot metal using Na2O-containing fluxes. The dissolution behavior of sulfur in the melts was modeled using the modified quasi-chemical model in the quadruplet approximation. This model can take into account the short-range ordering and the reciprocal exchange reaction of cations and anions in oxy-sulfide slags. Experimental sulfide capacity data were well predicted from the model with only three model parameters.


Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science | 2016

Critical Evaluation and Thermodynamic Optimization of the Na2O-FeO-Fe2O3 System

Elmira Moosavi-Khoonsari; In-Ho Jung


Journal of the American Ceramic Society | 2016

Coupled Experimental and Thermodynamic Optimization of the Na2O–FeO–Fe2O3–Al2O3 System: Part 1. Phase Diagram Experiments

Elmira Moosavi-Khoonsari; Pierre Hudon; In-Ho Jung


Journal of the American Ceramic Society | 2016

Coupled Experimental and Thermodynamic Optimization of the Na2O–FeO–Fe2O3–Al2O3 System: Part 2. Thermodynamic Optimization

Elmira Moosavi-Khoonsari; In-Ho Jung


Journal of The European Ceramic Society | 2017

Critical evaluation and thermodynamic optimization of the Na2O–FeO–Fe2O3–Al2O3–SiO2 system

Elmira Moosavi-Khoonsari; In-Ho Jung


Calphad-computer Coupling of Phase Diagrams and Thermochemistry | 2017

Estimation of thermodynamic properties of oxide compounds from polyhedron method

Ting Wu; Elmira Moosavi-Khoonsari; In-Ho Jung


publisher | None

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Metallography, Microstructure, and Analysis | 2017

Wettability Behavior of Zinc-Based Alloys on Cast Iron

Elmira Moosavi-Khoonsari; Farzad Jalilian; Florence Paray; Daryoush Emadi; R. A. L. Drew

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