In situ observation of the dissolution kinetics of Al2O3 particles in CaO-Al2O3-SiO2 slags using laser confocal scanning microscopy

• Published in: International journal of minerals, metallurgy and materials Vol. 30; no. 2; pp. 345 - 353
• Main Authors: Ren, Changyu, Huang, Caide, Zhang, Lifeng, Ren, Ying
• Format: Journal Article
• Language: English
• Published: Beijing University of Science and Technology Beijing 01.02.2023; Springer Nature B.V
• Subjects: Aluminum oxide; Boundary layers; Calcium oxide; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composites; Corrosion and Coatings; Diffusion coefficient; Diffusion layers; Dissolution; Glass; High temperature; Inclusions; Kinetics; Materials Science; Melting point; Melting points; Metallic Materials; Natural Materials; Scanning microscopy; Silicon dioxide; Slag; Surfaces and Interfaces; Thin Films; Tribology; inclusion; dissolution kinetics; confocal scanning laser microscope; refining slag

The dissolution kinetics of Al 2 O 3 in CaO-Al 2 O 3 -SiO 2 slags was studied using a high-temperature confocal scanning laser microscope at 1773 to 1873 K. The results show that the controlling step during the Al 2 O 3 dissolution was the diffusion in molten slag. It was found that the dissolution...