Properties of ZrO₂-C Materials with Anti-Oxidants

Abstract:

Submerged Entry nozzle is one of the key functional refractories for continuous casting and the safe and efficiency of the continuous casting is directly influenced by the properties of ZrO2-C materials located at the slag line of the submerged entry nozzle. In general, a little anti-oxidants such as SiC, Si or B4C will be introudced into ZrO2-C materials and anti-oxidants also influence the corrosion resistance of ZrO2-C materials. So this paper researched the properties especially the corrosion resistance of ZrO2-C materials with SiC, Si or B4C additions. The results show that the properties of ZrO2-C materials are relate to the composition of ZrO2-C materials and the corrosion resistance of ZrO2-C materials have no obvious relationship with other properties such as apparent porosity, bulk density, et al. The addition of anti-oxidants will all decrease the corrosion resistance of ZrO2-C material. The decreasing degree of corrosion resistance by Si is the most and the decreasing degree of corrosion resistance by SiC is the least. The corrosion resistance of ZrO2-C material with B4C addition is relate to the kind of the mold slag. To obtain the ZrO2-C material with excellent corrosion resistance antioxidants should not be added into ZrO2-C materials.

• Periodical: Advanced Materials Research (Volumes 156-157)
• Pages: 996-999
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.156-157.996
• Online since: October 2010
• Authors: Guo Qi Liu, Hong Xia Li, Fan Qian, Wen Gang Yang, Jian Bin Yu, Tian Fei Ma
• Keywords: Anti-Oxidant, Corrosion Resistance, ZrO₂-C Material

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