Corrosion mechanism of Al2O3–SiC–C refractory by SiO2–MgO-based slag

Wu, Muhan; Huang, Ao; Yang, Shuang; Gu, Huazhi; Fu, Lvping; Li, Guangqiang; Dong, Hongyuan

doi:10.1016/j.ceramint.2020.07.327

Cited by 30 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the process of the corrosion, the glass phase in the slag reacted with corundum that dissolved into the slag to form the SiO 2 –CaO–MgO–Al 2 O 3 low melting point phase. Nevertheless, the low melting point phase would enhance the slag penetration 34 . The SiO 2 –CaO–MgO–Al 2 O 3 phase observed was a liquid phase at high temperature 35 and then could erode zirconia‐mullite particles along grain boundaries and pores.…”

Section: Resultsmentioning

confidence: 99%

“…Nevertheless, the low melting point phase would enhance the slag penetration. 34 The SiO 2 -CaO-MgO-Al 2 O 3 phase observed was a liquid phase at high temperature 35 and then could erode zirconia-mullite particles along grain boundaries and pores. Zirconia-mullite would be dissolved directly, and then segregated m-ZrO 2 would also enter into the slag.…”

Section: 4mentioning

confidence: 95%

“…On the other hand, the excessive TiO 2 that entered into the slag could react with the slag to produce a liquid phase at high temperature that would intensify the slag penetration. 34 Therefore, the slag corrosion resistance of the specimen would decrease if TiO 2 was added too much.…”

Section: 4mentioning

confidence: 99%

See 2 more Smart Citations

Effect of in situ formation of Ti(C,N) on the properties of Al₂O₃–ZrO₂–C slide plate material

Jiang

Han

Wei

et al. 2022

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Al2O3–ZrO2–C slide plate was ordinarily used in sliding nozzle system because of its excellent mechanical properties and slag corrosion resistance. This study improved the slag corrosion resistance of the slide plate by the carbothermic reduction of TiO2 and aluminothermic reduction of TiO2 under high temperature in coke bed to generate Ti(C,N) phase in situ. The result revealed that TiC of the high melting point phase could enter into anorthite (CaAl2Si2O8) of the low melting point phase, forming eutectic phase CaAl2Si2O8–TiC, and improve the viscosity of the slag. Furthermore, TiC and CaAl2Si2O8 captured FeO and MnO from the slag, resulting in the increase of the slag viscosity, inhibiting the penetration corrosion of the slag, and improving the slag corrosion resistance of the materials. In general, compared with the material without TiO2 powder, the slag corrosion resistance of the material introduced 2 wt.% TiO2 powder was increased by 24%. Meanwhile, the cold crushing strength of fired specimen at room temperature was increased by 35.6%.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: 4mentioning

confidence: 95%

See 1 more Smart Citation

Effect of in situ formation of Ti(C,N) on the properties of Al₂O₃–ZrO₂–C slide plate material

Jiang

Han

Wei

et al. 2022

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…SiC 18 has excellent properties due to its high thermal conductivity, good wear resistance, superior high‐temperature strength, and corrosion resistance. The addition of SiC improves the strength, 19 toughness, 20 slag corrosion resistance, 21 and thermal shock resistance 22 of multiphase materials. Ma et al 23–25 .…”

Section: Introductionmentioning

confidence: 99%

“…SiC 18 has excellent properties due to its high thermal conductivity, good wear resistance, superior high-temperature strength, and corrosion resistance. The addition of SiC improves the strength, 19 toughness, 20 slag corrosion resistance, 21 and thermal shock resistance 22 of multiphase materials. Ma et al [23][24][25] found that the addition of the synthesized Al 2 O 3 -SiC could improve the slag permeability and slag resistance of low-carbon MgO-C refractories due to the formation of spinel dense layer and high-viscosity isolation layer.…”

Section: Introductionmentioning

confidence: 99%

In situ synthesis and interfacial bonding mechanism of SiC in MgO–SiC–C refractories

Luo

Zhang

et al. 2022

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Adding SiC directly to MgO–C refractories possesses the disadvantages of low dispersion and interfacial bonding strength. Herein, the in situ synthesized SiC was introduced into the MgO–SiC–C refractories to maintain the original excellent performance of MgO–C refractories and reduce the carbon dissolution in molten steel. With the increase of Si and C content in raw materials, the morphology of SiC changed from whisker to network, whose growth mechanism was vapor–solid and vapor–liquid–solid. The network structure and uniform distribution of SiC improved the thermal shock resistance of MgO–SiC–C refractories. According to the analysis of molecular dynamics simulation by Materials Studio software, SiC strengthened the relationship between periclase and graphite to enhance the structure of the compound.

show abstract

Quantitative Evaluation of Slag Corrosion on MgO-C Refractory by Experimental and Numerical Simulation

Wang

Tan

et al. 2021

JOM

View full text Add to dashboard Cite

Corrosion mechanism of Al2O3–SiC–C refractory by SiO2–MgO-based slag

Cited by 30 publications

References 17 publications

Effect of in situ formation of Ti(C,N) on the properties of Al₂O₃–ZrO₂–C slide plate material

Effect of in situ formation of Ti(C,N) on the properties of Al₂O₃–ZrO₂–C slide plate material

In situ synthesis and interfacial bonding mechanism of SiC in MgO–SiC–C refractories

Quantitative Evaluation of Slag Corrosion on MgO-C Refractory by Experimental and Numerical Simulation

Contact Info

Product

Resources

About

Corrosion mechanism of Al2O3–SiC–C refractory by SiO2–MgO-based slag

Cited by 30 publications

References 17 publications

Effect of in situ formation of Ti(C,N) on the properties of Al2O3–ZrO2–C slide plate material

Effect of in situ formation of Ti(C,N) on the properties of Al2O3–ZrO2–C slide plate material

In situ synthesis and interfacial bonding mechanism of SiC in MgO–SiC–C refractories

Quantitative Evaluation of Slag Corrosion on MgO-C Refractory by Experimental and Numerical Simulation

Contact Info

Product

Resources

About

Effect of in situ formation of Ti(C,N) on the properties of Al₂O₃–ZrO₂–C slide plate material

Effect of in situ formation of Ti(C,N) on the properties of Al₂O₃–ZrO₂–C slide plate material