TY - JOUR
T1 - Use of a structural model to calculate the viscosity of liquid silicate systems
AU - López-Rodríguez, Josue
AU - Romero-Serrano, Antonio
AU - Hernández-Ramírez, Aurelio
AU - Perez-Labra, Miguel
AU - Cruz-Ramírez, Alejandro
AU - Rivera-Salinas, Enrique
N1 - Publisher Copyright:
© 2018 ISIJ.
PY - 2018
Y1 - 2018
N2 - A viscosity model for binary and ternary silicate melts is proposed in this article. The temperature dependence of viscosity is expressed using the Arrhenius equation and the composition dependence is made through the concentration of oxygen bridges (Si-O-Si) in the silica structure. A previous proposed structural thermodynamic model is used to calculate the content of oxygen bridges. The model requires only three parameters to obtain a good agreement between experimental and calculated data for the SiO2-CaO, SiO2-MgO, SiO2-MnO, and SiO2-Na2O binary systems. The viscosity of ternary systems is calculated with the model assuming a linear function of the parameters from binary systems; however, the content of oxygen bridges is calculated using the structural thermodynamic model for ternary systems. Comparison is made between the experimental and model results for the SiO2-CaO-MgO, SiO2-CaO-MnO, and SiO2- Na2O-MgO systems. The viscosity model can take into account the effect of substituting one metal oxide for another in the ternary systems..
AB - A viscosity model for binary and ternary silicate melts is proposed in this article. The temperature dependence of viscosity is expressed using the Arrhenius equation and the composition dependence is made through the concentration of oxygen bridges (Si-O-Si) in the silica structure. A previous proposed structural thermodynamic model is used to calculate the content of oxygen bridges. The model requires only three parameters to obtain a good agreement between experimental and calculated data for the SiO2-CaO, SiO2-MgO, SiO2-MnO, and SiO2-Na2O binary systems. The viscosity of ternary systems is calculated with the model assuming a linear function of the parameters from binary systems; however, the content of oxygen bridges is calculated using the structural thermodynamic model for ternary systems. Comparison is made between the experimental and model results for the SiO2-CaO-MgO, SiO2-CaO-MnO, and SiO2- Na2O-MgO systems. The viscosity model can take into account the effect of substituting one metal oxide for another in the ternary systems..
KW - Silicate structure
KW - Slag viscosity
KW - Thermodynamic model.
UR - http://www.scopus.com/inward/record.url?scp=85042708860&partnerID=8YFLogxK
U2 - 10.2355/isijinternational.ISIJINT-2017-483
DO - 10.2355/isijinternational.ISIJINT-2017-483
M3 - Artículo
SN - 0915-1559
VL - 58
SP - 220
EP - 226
JO - ISIJ International
JF - ISIJ International
IS - 2
ER -