Anti-Errosion of O'-Sialon/BN and O'-Sialon/ZrO<sub>2</sub> Composites in Molten Steel and Slag

BAO Hong; ZHEN Qiang; LI Wenchao

doi:10.13374/j.issn1001-053x.2001.04.007

Volume 23 Issue 4

Aug. 2021

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BAO Hong, ZHEN Qiang, LI Wenchao. Anti-Errosion of O'-Sialon/BN and O'-Sialon/ZrO2 Composites in Molten Steel and Slag[J]. Chinese Journal of Engineering, 2001, 23(4): 311-315. doi: 10.13374/j.issn1001-053x.2001.04.007

Citation:

BAO Hong, ZHEN Qiang, LI Wenchao. Anti-Errosion of O'-Sialon/BN and O'-Sialon/ZrO₂ Composites in Molten Steel and Slag[J]. Chinese Journal of Engineering, 2001, 23(4): 311-315. doi: 10.13374/j.issn1001-053x.2001.04.007

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Anti-Errosion of O'-Sialon/BN and O'-Sialon/ZrO₂ Composites in Molten Steel and Slag

doi: 10.13374/j.issn1001-053x.2001.04.007

Metallurgy School, UST Beijing, Beijing 100083, China;
2. City Key Laboratony of Iron and Steel Metallurgy Shanghai 200072, China

Received Date: 2000-12-01

Abstract

Abstract

Erosions of O'-Sialon/BN in molten Steel and O'-Sialon/ZrO₂ in protective slag of continuous casting were investigated. According to eperimental results and theoretical analysis, erosion kinetics of the O'-Sialon/BN in molten steel was controlled by tWo steps:the first one is controlled by a chemical reaction taking place on the interface; the second one is controlled by diffusion through boundary layers. The O'- Sialon/ZrO₂ composites had good erosion resistance to continuous casting protective slag because the solubility of ZrO₂ in silicate melt is limited and the increment of ZrO₂ content will prevent O'-Sialon from reacting with dissolved CO and other components in slag.
- O'-Sialon/BN,
- O'-Sialon/ZrO₂,
- erosion resistance,
- fractal,
- composite materials