Effect of slag basicity on the interfacial wetting behavior between CA6 refractories and CaO–SiO2–MgO–Al2O3 based slag

Liu, Jie; Ren, Bo; Liu, Wei; Feng, Jisheng; Ma, Qiao; Chen, Haiyang; Li, Bin; Chen, Junhong; Yin, Shu

doi:10.1016/j.ceramint.2023.04.033

Ceramics International

2023

DOI: 10.1016/j.ceramint.2023.04.033

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Effect of slag basicity on the interfacial wetting behavior between CA6 refractories and CaO–SiO2–MgO–Al2O3 based slag

Jie Liu

Bo Ren

Wei Liu

et al.

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Cited by 6 publications

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Interactions between 3Al₂O₃·2SiO₂, CA₂, CA₆, and Molten Slags

Wei,

Volkova

2024

steel research int.

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Herein, the interaction between the oxide substrates (mullite (3Al2O3·2SiO2), calcium aluminates CaO⋅2Al2O3 (CA2) and CaO⋅6Al2O3 (CA6), and the slags with various basicities (CaO/(Al2O3 + SiO2) (1.0, 0.9, and 0.8)) and MgO (5 and 10 wt%) is investigated. The contact angle of the molten slag on oxide substrates is found to be strongly regulated by the several factors including the chemical composition of the slag, the newly formed reaction product between molten slag and substrates, and the porosity of the substrates. For the case of mullite substrate, the slags infiltrated the substrates, with various morphologies of alumina observed within the penetrated layer of the mullite. In contrast, the CA2 substrate showed less penetration compared to the other substrates. Nevertheless, the newly generated CaAl2O4 phase was detected within the pores of CA2 substrate. During the interaction of slag and CA6 substrate, the CaAl2O4 and melilite phases are identified. The presence of MgO in the slag leads to the generation of MgAl2O4 phases. The corrosion depth is found to be enhanced via basicity. Furthermore, the solidified slags with 10 wt% MgO addition are found to have noticeable porosities. The porous structure is elucidated by the decreased slag density attributed to the generation of MgAl2O4 phase.

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Interactions between 3Al₂O₃·2SiO₂, CA₂, CA₆, and Molten Slags

Wei,

Volkova

2024

steel research int.

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Study on Interaction Behavior of Cerium Oxide Containing Slag with MgO-C Bricks Using X-ray Diffraction and Computed Tomography

Kumar,

Kujur,

Acharyya

et al. 2024

Metall Mater Trans B

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Wettability and corrosion behavior between alkaline slag from sodium smelting of vanadium–titanium magnetite and refractory substrates

Zhao,

Bian,

Zhao

et al. 2024

J. Iron Steel Res. Int.

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Effect of slag basicity on the interfacial wetting behavior between CA6 refractories and CaO–SiO2–MgO–Al2O3 based slag

Cited by 6 publications

References 51 publications

Interactions between 3Al₂O₃·2SiO₂, CA₂, CA₆, and Molten Slags

Interactions between 3Al₂O₃·2SiO₂, CA₂, CA₆, and Molten Slags

Study on Interaction Behavior of Cerium Oxide Containing Slag with MgO-C Bricks Using X-ray Diffraction and Computed Tomography

Wettability and corrosion behavior between alkaline slag from sodium smelting of vanadium–titanium magnetite and refractory substrates

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Effect of slag basicity on the interfacial wetting behavior between CA6 refractories and CaO–SiO2–MgO–Al2O3 based slag

Cited by 6 publications

References 51 publications

Interactions between 3Al2O3·2SiO2, CA2, CA6, and Molten Slags

Interactions between 3Al2O3·2SiO2, CA2, CA6, and Molten Slags

Study on Interaction Behavior of Cerium Oxide Containing Slag with MgO-C Bricks Using X-ray Diffraction and Computed Tomography

Wettability and corrosion behavior between alkaline slag from sodium smelting of vanadium–titanium magnetite and refractory substrates

Contact Info

Product

Resources

About

Interactions between 3Al₂O₃·2SiO₂, CA₂, CA₆, and Molten Slags

Interactions between 3Al₂O₃·2SiO₂, CA₂, CA₆, and Molten Slags