Abstract
To control the shear property of a calcium silicate mold flux, we incorporated carbon (C) into it in the form of SiC. We measured the flux’s viscosity using a rotationary viscometer to quantify its shear-thinning behavior and analyzed its structure to determine its degree of polymerization. Silicon carbide had the strongest shear-thinning property at C content = 1 wt pct and had the highest shear-thinning property ever achieved in a mold flux. The degree of shear-thinning property for silicon oxy-carbide glass followed the Oswals-De Waele power law model. This mold flux will improve the quality of continuously-cast steel by providing appropriate lubrication between the mold wall and the steel shell.
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Manuscript submitted June 27, 2020; accepted March 28, 2021.
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Jeong, YC., Shin, SH., Baek, JY. et al. Influence of Silicon Carbide on Shear-Thinning Behavior of CaO-SiO2-CaF2-Based Mold Fluxes. Metall Mater Trans B 52, 2048–2055 (2021). https://doi.org/10.1007/s11663-021-02164-z
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DOI: https://doi.org/10.1007/s11663-021-02164-z