Corrosion Resistance of β-SiAlON-Based Ceramics Against Molten Steel


Article Preview

The corrosion resistance of sialons made from commercial powders (AlN, Al2O3 and Si3N4) and from powder precursor produced by carbothermal reduction and nitridation of raw aluminosilicate (pyrophyllite) in molten steel were investigated. The corroded zone in sialon made from raw pyrophyllite (P1) is more then two times deeper compared to the corroded zone of sialon made from commercial powders (C1). The corrosion zone of sample P1 is on the average 610 μm deep, while in sample C1 it is only 260 μm. The main corrosion products are γ-Al2O3 and iron silicides. The phase compositions were estimated by neutron Rietveld refinement.



Edited by:

Hasan Mandal




P. Šajgalík et al., "Corrosion Resistance of β-SiAlON-Based Ceramics Against Molten Steel", Materials Science Forum, Vol. 554, pp. 147-150, 2007

Online since:

August 2007




[1] Riley F. L.: Key Eng. Mater., 113 (1996), pp.1-14.

[2] Dower L. T. and Coley K.: Key Eng. Mater., 113 (1996), pp.167-176.

[3] Amadeh A. A., Labbe J. C. and Quintard P. E.: J. Eur. Ceram. Soc. 25 (2005), pp.1041-1048.

[4] Shimoo T., Yamasaki T and Okamura K.: J. Ceram. Soc. Jap. 105 (9) (1997), pp.734-739.

[5] Křesťan J., Šajgalík P. and Pánek Z.: J. Eur. Ceram. Soc. 24 (2004), pp.791-796.

[6] van Dijen F.K., Metselaar R. and Helmholdt R.B.: J. Mater. Sci. Lett. 6 (1987), pp.1101-1102.

[7] Brown A. S., Spackman M. A., Hill R. J.: Acta Cryst. A49 (1993), pp.513-527.

[8] Kawamura T.: Mineralogical J. (Japan) 4 (1965), pp.333-355.

[9] Smrčok Ľ., Langer V. and Křesťan J.: Zeitschrift für Kristallographie, Submited.

[10] Weill A.R.: Nature (London) 152 (1943) pp.413-413.

[11] Schütte M., Wartchow R. and Binnewis M.: Z. Anorg. Allg. Chem. 629 (2003), pp.1846-1850.

[12] Wood I. G., David W. I. F., Hull S. and Price G.D.: J. Appl. Cryst. 29 (1996), pp.215-218 Rodriguez-Carvajal J.: FullProf2000 http: /www-llb. cea. fr/fullweb/fp2k/fp2k. htm.