Application Study on beta-Sialon-Al_2O_3 Brick in Iron Ladle

摘要

The microstructure and slag erosion fractal dimension of reaction interface of beta-Sialon-Al_2O_3 brick used in 300 Mt iron ladle of Baosteel have been studied by SEM and XRD. The results indicated that beta-Sialon-Al_2O_3 brick exhibited excellent slag resistance. The main wear mechanism of beta-Sialon-Al_2O_3 brick is mainly from the spalling caused by thermal mechanical stress and attacked by slag secondly.