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Application of Cathodoluminescence Technique in Light Microscopy to Crystallisation Study of Mold Fluxes

Mold fluxes are synthetic mixtures based on SiO2-CaO-Al2O3 composition, which are used to cover liquid steel meniscus in the continuous steel casting mold. Molten flux filling the gap between liquid steel and copper mold tends to form partially crystalline film. The degree of crystallinity was found to affect the lubrication and heat transfer properties of the film, and ultimately, the quality of steel [1].