Effect of Silicon on Molten Iron Corrosion Resistance of Corundum-Silicon Nitride Composites

Abstract:

Molten iron corrosion resistance of silicon-corundum-silicon nitride composites were investigated using corundum, silicon nitride, clay and silicon powder as the main starting materials by static crucible method. The corrosion mechanism of the composites was analyzed by means of scanning electron microscope (SEM with EDS). The results revealed that corundum-silicon nitride composites possessed good molten iron corrosion behavior and the active oxidation of silicon nitride was the main reason for loose structure of the corroded specimen; The composites produced a dense layer by addition of silicon, which made superior molten iron corrosion resistance behavior.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 210-213
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.210
• Online since: July 2011
• Authors: Jun Cong Wei, Jun Bo Tu, Jian Cao
• Keywords: Corrosion Resistance, Corundum-Silicon Nitride, Molten Iron, Silicon Powder

References

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