All Title Author
Keywords Abstract

Effects of SnO2 Addition on the Properties of Alumina-Magnesia Refractory Castables

DOI: 10.4236/njgc.2015.51001, PP. 1-7

Keywords: Castables, SnO2, Spinel, Calcium Hexaaluminate

Full-Text   Cite this paper   Add to My Lib


Alumina-magnesia refractory castables have been widely used in the wall and bottom impact pad of steel ladles. The properties of alumina-magnesia refractory castables with SnO2 additive in 0 - 5 wt% range were investigated. The phase composition, microstructure, physical and mechanical properties of these refractories were studied. The results showed that the addition of SnO2 could have a great influence on the properties of alumina-magnesia refractory castables. The expansion, apparent porosity and strength of refractories with SnO2 were all more prominent than those of reference samples, which were attributed to the formation of CA6 and enhanced bonding. Meanwhile SnO2 could react with spinel and CA6 to form solid solution.


[1]  Braulio, M.A.L., Morbioli, G.G., Milanez, D.H. and Pandolfelli, V.C. (2011) Calcium Aluminate Cement Source Evaluation for Al2O3-MgO Refractory Castables. Ceramics International, 37, 215-221.
[2]  Braulio, M.A.L., Milanez, D.H., Sako, E.Y., Bittencourt, L.R.M. and Pandolfelli. V.C. (2007) Expansion Behavior of Cement-Bonded Alumina-Magnesia Refractory Castables. American Ceramic Society Bulletin, 86, 9201-9209.
[3]  Braulio, M.A.L., Bittencourt, L.R.M., Poirier, J. and Pandolfelli, V.C. (2008) Microsilica Effects on Cement Bonded Alumina-Magnesia Refractory Castables. Journal of Technical Association of Refractories Japan, 28, 180-184.
[4]  Braulio, M.A.L., Rigaud, M., Buhr, A., Parr, C. and Pandolfelli, V.C. (2011) Spinel-Containing Alumina-Based Refractory Castables. Ceramics International, 37, 1705-1724.
[5]  Simonin, F., Olagnon, C., Maximilien, S., Fantozzi, G., Diaz, L.A. and Torrecillas, R. (2000) Thermomechanical Behavior of High-Alumina Refractory Castables with Synthetic Spinel Additions. Journal of the American Ceramic Society, 83, 2481-2490.
[6]  Chen, S.K., Cheng, M.Y., Lin, S.J. and Ko, Y.C. (2002) Thermal Characteristics of Al2O3-MgO and Al2O3-Spinel Castables for Steel Ladles. Ceramics International, 28, 811-817.
[7]  Schacht, C.A. (2004) Refractoires Handbook. Marcel Dekker, Inc., New York.
[8]  Braulio, M.A.L. and Pandolfelli, V.C. (2010) Tailoring the Microstructure of Cement-Bonded Alumina-Magnesia Refractory Castables. Journal of the American Ceramic Society, 93, 2981-2985.
[9]  Kostic, E., Boskovic, S. and Kis, S. (1982) Influence of Fluorine Ion on the Spinel Synthesis. Journal of Materials Science Letters, 1, 507-510.
[10]  Sarkar, R., Das, S.K. and Banerjee, G. (2003) Effect of Additives on the Densification of Reaction Sintered and Presynthesised Spinels. Ceramics International, 29, 55-59.
[11]  Jedynak, L., Wojsa, J., Podworny, J. and Wala, T. (2011) Refractories from the MgO-Al2O3-SnO2 System for Metallurgical Applications. Ceramic Materials, 63, 34-39.
[12]  Verun Deutscher Eisenhuttenleute (VDEh) (1995) Slag Atlas. 2nd Edition, Verlag Stahleisen Gmbh, Dusseldorf.


comments powered by Disqus