4.2 Article

Thermodynamic Modeling of the CaO-SiO2-M2O (M=K,Na) Systems

Journal

HIGH TEMPERATURE MATERIALS AND PROCESSES
Volume 32, Issue 3, Pages 223-228

Publisher

WALTER DE GRUYTER GMBH
DOI: 10.1515/htmp-2012-0127

Keywords

thermodynamics; phase diagram; modeling; molten slag

Funding

  1. Federal Ministry of Education and Research of Germany [03z2FN12]

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The aim of the present study is the CALPHAD modeling of the systems CaO-SiO2-M2O (M=K,Na) based on a careful review of the available literature data - phase diagram and thermodynamics - as well as own experiments. The heat capacities (Cp) of three compounds, CaSiO3, K2Ca2Si2O7 and K8CaSi10O25 (determined using drop calorimetry), were included in the optimization of the ternary phase diagram CaO-SiO2-K2O.

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