Effect of Zircon Addition on Properties of Corundum Porous Materials

doi:10.19691/j.cnki.1004-4493.2024.01.002

China's Refractories ›› 2024, Vol. 33 ›› Issue (1): 7-13.DOI: 10.19691/j.cnki.1004-4493.2024.01.002

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Effect of Zircon Addition on Properties of Corundum Porous Materials

CHEN Haonan¹, LIU Xin¹, ZHANG Shiming¹, LI Ying², WANG Di², JIA Quanli^1,*

1 Henan Key Laboratory of High Temperature Functional Ceramics, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, China;
2 Henan Building Materials Research and Design Institute Co., Ltd., Zhengzhou 450002, China

Online:2024-03-15 Published:2024-04-07
Contact: *e-mail: jiaquanli@zzu.edu.cn
About author:Chen Haonan, born in 1998, graduated from Taizhou University in 2021 with a bachelor's degree in engineering. He is currently a master student at the School of Materials Science and Engineering, Zhengzhou University, conducting research under the guidance of Professor Jia Quanli. At present, his research mainly focuses on refractory materials for purging plugs.

Abstract

Abstract: This paper aims to improve the corrosion resistance of dispersive purging plugs. White fused corundum particles and fine powder, α-Al₂O₃ micropowder, Cr₂O₃ micropowder, Guangxi clay and zircon powder were used as the main raw materials. The mass ratio of white fused corundum particles and fine powder was fixed at 85 : 15, and 0, 1%, 2%, or 3% (by mass) of zircon fine powder was added to replace the same amount of white fused corundum fine powder. The corundum porous material was prepared by the particle stacking pore-forming method at 1 650 ℃ for 3 h. The effect of the zircon addition on the properties and microstructure of porous materials was investigated. The results show that: after adding zircon, the permeability of the porous material increases, the cold and hot strengths increase obviously, and the expansion rate after firing decreases. When the addition of zircon is 2%, the comprehensive performance of the specimen is optimal with the smallest linear change rate and the highest permeability.

Key words: porous materials, zircon fines, purging plug, permeability

CHEN Haonan, LIU Xin, ZHANG Shiming, LI Ying, WANG Di, JIA Quanli. Effect of Zircon Addition on Properties of Corundum Porous Materials[J]. China's Refractories, 2024, 33(1): 7-13.

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Effect of Zircon Addition on Properties of Corundum Porous Materials

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