Effect of nano-oxides on corrosion resistance of Al2O3-ZrO2-C material

被引：8
作者：
Zhao, Zhenyi [1 ]
Wang, Zihao [1 ]
Tian, Xuekun [1 ]
Liang, Xinxing [2 ]
Su, Kai [1 ]
Liu, Xusheng [1 ]
Zhao, Fei [1 ]
Liu, Xinhong [1 ]
机构：
[1] Zhengzhou Univ, Sch Mat Sci & Engn, Henan Key Lab High Temp Funct Ceram, 75 Daxue Rd, Zhengzhou 450052, Peoples R China
[2] Zhengzhou Fangming High Temp Ceram New Mat Co Ltd, Zhengzhou 452384, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2024年 / 50卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Nano-oxides; Corrosion resistance; Microstructure; MECHANICAL-PROPERTIES; GRAPHITE REFRACTORIES; AL2O3-C REFRACTORIES; MICROSTRUCTURE; PERFORMANCE; CERAMICS; WHISKERS; SILICON; POWDER; MGO;
D O I：
10.1016/j.ceramint.2024.02.163
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The Al 2 O 3 - ZrO 2 - C material was prepared using tabular alumina aggregates and fines, zirconia-corundum, zirconia-mullite, flake graphite, B 4 C powder, Si powder and different nano-oxides (nano-ZrO 2 , nano-TiO 2 , and nano-Al 2 O 3 ) as raw materials, the effects of different nano-oxides on the corrosion resistance and microstructure evolution of Al 2 O 3 - ZrO 2 - C material were investigated. The results showed that the high reactivity nano-ZrO 2 , nano-TiO 2 , and nano-Al 2 O 3 particles reacted with CaO to generate high melting point phases of CaZrO 3 , CaTiO 3 , CaO center dot 6Al 2 O 3 (CA 6 ) at high temperature, which forms a protective layer at the interface between corroded media and samples, inhibiting CaO penetration into the material. Additionally, nano-oxides can fill the pores and increase the density of material, thereby contributing to improving the penetration resistance and corrosion resistance of material.
引用
收藏
页码：16890 / 16900
页数：11
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