Fabrication of Zirconia Coating on the Surface of Al2O3-SiC-C Castable

Yu Cheng Yin; Yong He Liang; Shan Ge; Jiu Chang Lu; Zhi Qiang Liu

doi:10.4028/www.scientific.net/KEM.537.82

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 537Fabrication of Zirconia Coating on the Surface of...

Fabrication of Zirconia Coating on the Surface of Al₂O₃-SiC-C Castable

Abstract:

Using zirconia Sol as zirconia source, zirconia coating has been fabricated on the surface of Al2O3-SiC-C castable by spraying technology after pretreated at 110oC, 300oC, 500oC, 700oC and 900oC. The oxidation resistance of Al2O3-SiC-C castable with zirconia coating was compared with that without coating, at the same time using microanalysis technique, effects of pretreatment temperatures and spraying times on the fabricated zirconia coating were investigated. Results suggest that better zirconia coating might be achieved after pretreated at 300oC and spraying one time. At this condition, fabricated zirconia coating has good continuity, closely bonded with substrate castable and even has a little penetration into the castable, and thus improved the oxidation resistance of Al2O3-SiC-C castable.

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Periodical:

Key Engineering Materials (Volume 537)

Pages:

82-86

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.537.82

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Online since:

January 2013

Authors:

Yu Cheng Yin, Yong He Liang, Shan Ge, Jiu Chang Lu, Zhi Qiang Liu

Keywords:

Al₂O₃-SiC-C Castable, Pretreatment, Zirconia Coating, Zirconia Sol

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