The Wear Mechanism Comparison between MgO-Based Chrome-Free Brick and MgO-Cr2O3 Brick in the Lower Part of RH Vacuum Degasser

Guo Xiang Yin; Yong Li; Jun Hong Chen; Xin Kui Gao

doi:10.4028/www.scientific.net/AMR.476-478.1991

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The Wear Mechanism Comparison between MgO-Based Chrome-Free Brick and MgO-Cr₂O₃ Brick in the Lower Part of RH Vacuum Degasser

Abstract:

The damage and improvement mechanism of rebonded MgO-Cr2O3 brick and MgO-ZrO2 brick used in the lower part of RH vacuum degasser were studied. The results show that the main damage of rebonded MgO-Cr2O3 brick is structure spalling because of the penetration of slag. MgO-ZrO2 brick has characteristics of high direct-bonding degree, small air permeability and making the viscosity of penetrated slag increased by means of ZrO2 absorbing CaO in slag to form CaZrO3 or ZrO2 solid solution, which make the degree of slag penetration decrease and improve the structure spalling resistance. MgO-ZrO2 brick has the defect of poor thermal shock resistance in use, the incorporation of MgO-rich spinel into MgO-ZrO2 brick significantly improved both thermal shock resistance and hot modulus of rupture because of the formation of eutectoid structure of grain-refining spinel and zirconia, which also improved structure spalling resistance because air permeability was decreased to 5% of MgO-ZrO2 brick

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Periodical:

Advanced Materials Research (Volumes 476-478)

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1991-1996

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.1991

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February 2012

Authors:

Guo Xiang Yin, Yong Li, Jun Hong Chen, Xin Kui Gao

Keywords:

Mgo-Cr₂O₃Brick, Mgo-ZrO₂ Brick, RH Vacuum Degasser, Structure Spalling Resistance, Thermal Shock Resistance

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References

[1] Rongrong Chen, Pingxian He, Jining Mou. Naihuo Cailiao(In Chinese): 2005, 39(5): 357-360

Google Scholar

[2] Songlin Chen, Jialin Sun, Xiaoyong Xiong. Naihuo Cailiao(In Chinese): 2007, 41(6): 417-420

Google Scholar

[3] Guoxiang Yin, BO Pan, Xinkui GaO. Naihuo Cailiao (In Chinese): 2010, 44(6): 413-418.

Google Scholar

[4] Cemail Aksel, Brian Rand, Frank L. Riley, et al. Journal of the European Ceramic Society: 2002, 22(5): 745–754

Google Scholar

[5] Baris Sahin, Cemail Aksel. Journal of the European Ceramic Society: 2012, 32(1): 49~57

Google Scholar

[6] J.I. Pena, M.Larsson, J.LLorca, et al. Journal of the European Ceramic Society: 2006, 26(15): 3113-3121

Google Scholar

[7] Haijun Su, Jun Zhang, Jianzheng Yu, et al. Journal of Alloys and Compounds: 2011, 509 (12): 4420–4425

Google Scholar

[8] Jialin Sun, Yanro Hong, Shuju Dou. Naihuo Cailiao (In Chinese): 1996, 30(5): 255-258

Google Scholar

[9] P. Tassot, G. Koenig, F. A. Seifert, et al. Journal of materials science: 1986, 21(10): 3479-3482

Google Scholar

[10] Ibram Ganesh, J.M.F. Ferreira. Ceramics International: 2009, 35(1): 259-264

Google Scholar