The microstructure and slag erosion fractal dimension of reaction interface of β-Sialon-Al2 O3 brick used in 300 Mt iron ladle of Baosteel have been studied by SEM and XRD.The results indicated that β-Sialon-Al2 O3 brick exhibited excellent slag resistance.The main wear mechanism of β-Sialon-Al2 O3 brick is mainly from the spalling caused by thermal mechanical stress and attacked by slag secondly.
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