Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 101, Issue 2, Pages 634-643Publisher
WILEY
DOI: 10.1111/jace.15227
Keywords
aluminosilicates; eutectics; Raman spectroscopy; slags; sulfides
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Funding
- Korea Evaluation Institute of Industrial Technology (KEIT) [10076604] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The present study investigated the relationship between sulfide capacity and the average nonbridging oxygens to tetrahedral cations (NBO/T) of CaO-SiO2-Al2O3-MgO slags. The sulfide capacity and NBO/T increase with increasing Al2O3/SiO2 ratio and X-CaO due to increasing basicity. The inflected dependence of sulfide capacity and NBO/T observed at a eutectic composition. Thermodynamic investigations revealed that the inflected dependence is caused by the effects of mixing enthalpy and entropy components in eutectic composition. Quantitative analysis of sulfide capacity and NBO/T revealed a proportional linear relationship between the two variables. Based on these experimental results, the corresponding structure-property relationships concerning sulfide capacity, viscosity, and stability are discussed in detail.
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