A Modified Rotating-Finger Test Aiming to Quantify Refractory Wear Based on Fundamental Equations Governing Refractory Dissolution and Erosion

DesignDesign of wear-resistant refractoriesRefractories necessitates an in-depth understanding and accurate quantification of the continuous wear. However, the experimental methods reported in the literature are mostly phenomenological and unable to reveal the physicochemical background of continuous wear. Main goals of this work are scientific investigation of continuous refractory wearRefractory wear and acquisition of data for quantitative simulationSimulation of continuous wear to design wear-resistant refractories. A modified rotating-finger testRotating-Finger Test (RFT) device was equipped with high-resolution laser to scan the sample surface for dimension measurement. Generally, refractoryRefractories dissolutionDissolution in molten slag is controlled by diffusion through a boundary layer and diffusivityDiffusivity is the most important parameter to quantify dissolutionDissolution. The data obtained from modified RFTRotating-Finger Test studies were applied to accurately determine effective binary diffusivity using simulationSimulation method or mass transfer equation. Also, results of erosionErosion studies were applied for inverse calculation of erosionErosion parameters. Continuous wear of alumina in silicate slag will be exemplified here.