Thermodynamic model for ternary silicate systems

Juliana Gutierrez; Antonio Romero-Serrano; Gabriel Plascencia; Federico Chavez; Roberto Vargas

doi:10.2355/isijinternational.40.664

Thermodynamic model for ternary silicate systems

Juliana Gutierrez, Antonio Romero-Serrano, Gabriel Plascencia, Federico Chavez, Roberto Vargas

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12 Scopus citations

Abstract

A thermodynamic model has been developed for the representation of ternary liquid silicate systems SiO₂-AO-BO, where A and B are metals such as Ca, Fe, Mn, etc. It is based on a structural model which assumes that each metallic oxide produces the depolymerization reaction O°+O^2- = 2O^- with a characteristic free energy change. The model can calculate the properties of ternary systems solely from data of the binary sub-systems. No ternary terms are required. The model is used to calculate the activities of the components in complex silicates such as SiO₂-FeO-CaO where the behavior of Fe²⁺ is very different from that of Ca²⁺ in the silicate structure. This model has been also used to calculate the activities in the systems SiO₂-MgO-FeO, SiO₂-MgO-CaO, SiO₂-MgO-MnO, SiO₂-Na-O-MgO and SiO₂-Na₂O-CaO. Good agreement is obtained between calculated and experimental results.

Original language	English
Pages (from-to)	664-669
Number of pages	6
Journal	ISIJ International
Volume	40
Issue number	7
DOIs	https://doi.org/10.2355/isijinternational.40.664
State	Published - 2000
Externally published	Yes

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title = "Thermodynamic model for ternary silicate systems",

abstract = "A thermodynamic model has been developed for the representation of ternary liquid silicate systems SiO2-AO-BO, where A and B are metals such as Ca, Fe, Mn, etc. It is based on a structural model which assumes that each metallic oxide produces the depolymerization reaction O°+O2- = 2O- with a characteristic free energy change. The model can calculate the properties of ternary systems solely from data of the binary sub-systems. No ternary terms are required. The model is used to calculate the activities of the components in complex silicates such as SiO2-FeO-CaO where the behavior of Fe2+ is very different from that of Ca2+ in the silicate structure. This model has been also used to calculate the activities in the systems SiO2-MgO-FeO, SiO2-MgO-CaO, SiO2-MgO-MnO, SiO2-Na-O-MgO and SiO2-Na2O-CaO. Good agreement is obtained between calculated and experimental results.",

author = "Juliana Gutierrez and Antonio Romero-Serrano and Gabriel Plascencia and Federico Chavez and Roberto Vargas",

year = "2000",

doi = "10.2355/isijinternational.40.664",

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volume = "40",

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T1 - Thermodynamic model for ternary silicate systems

AU - Gutierrez, Juliana

AU - Romero-Serrano, Antonio

AU - Plascencia, Gabriel

AU - Chavez, Federico

AU - Vargas, Roberto

PY - 2000

Y1 - 2000

N2 - A thermodynamic model has been developed for the representation of ternary liquid silicate systems SiO2-AO-BO, where A and B are metals such as Ca, Fe, Mn, etc. It is based on a structural model which assumes that each metallic oxide produces the depolymerization reaction O°+O2- = 2O- with a characteristic free energy change. The model can calculate the properties of ternary systems solely from data of the binary sub-systems. No ternary terms are required. The model is used to calculate the activities of the components in complex silicates such as SiO2-FeO-CaO where the behavior of Fe2+ is very different from that of Ca2+ in the silicate structure. This model has been also used to calculate the activities in the systems SiO2-MgO-FeO, SiO2-MgO-CaO, SiO2-MgO-MnO, SiO2-Na-O-MgO and SiO2-Na2O-CaO. Good agreement is obtained between calculated and experimental results.

AB - A thermodynamic model has been developed for the representation of ternary liquid silicate systems SiO2-AO-BO, where A and B are metals such as Ca, Fe, Mn, etc. It is based on a structural model which assumes that each metallic oxide produces the depolymerization reaction O°+O2- = 2O- with a characteristic free energy change. The model can calculate the properties of ternary systems solely from data of the binary sub-systems. No ternary terms are required. The model is used to calculate the activities of the components in complex silicates such as SiO2-FeO-CaO where the behavior of Fe2+ is very different from that of Ca2+ in the silicate structure. This model has been also used to calculate the activities in the systems SiO2-MgO-FeO, SiO2-MgO-CaO, SiO2-MgO-MnO, SiO2-Na-O-MgO and SiO2-Na2O-CaO. Good agreement is obtained between calculated and experimental results.

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U2 - 10.2355/isijinternational.40.664

DO - 10.2355/isijinternational.40.664

M3 - Artículo

SN - 0915-1559

VL - 40

SP - 664

EP - 669

JO - ISIJ International

JF - ISIJ International

IS - 7

ER -

Thermodynamic model for ternary silicate systems

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