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Contact Strength of the RE-Oxynitride Glasses

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Abstract:

Effects of the rare-earth additives (RE = Sc, Y, La, Nd, Gd, Sm, Yb and Lu) and nitrogen on contact strength of the oxide and oxynitride glasses were investigated at room temperature. The advantage of this relatively new technique is its experimental simplicity and using of miniature samples, however, a relatively complex stress distribution around the contact points reduces Weibull parameter in comparison with the conventional bending strength. Contact strength of the tested glasses is also strongly influenced by surface finish. The differences in the effects of REmodifiers in oxide and oxynitride glasses suggest that the contributions from RE and nitrogen may not be simply additive, as observed earlier for various thermo-mechanical properties. However, additional study is necessary to eliminate the effects of surface defects to support this assumption.

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Periodical:

Key Engineering Materials (Volume 290)

Pages:

102-109

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.290.102

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Online since:

July 2005

Authors:

František Lofaj, Františka Dorčáková

Keywords:

Contact Strength, Lanthanides, Oxynitride Glass, Rare-Earth Modifiers

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] R.E. Loehman: J. Amer. Ceram. Soc. Vol. 62 (1979), p.491.

Google Scholar

[2] R.A.L. Drew, S. Hampshire, and K.H. Jack: Nitrogen Glasses. pp.119-32 in Special Ceramics 7, Proc. British Ceram. Soc. (British Ceram. Soc., Stoke-on-Trent, U.K. 1981).

Google Scholar

[3] D.R. Messier and A. Broz: J. Am. Ceram. Soc. Vol. 65 (1982), p. C123.

Google Scholar

[4] S. Hampshire, R.A.L. Drew, and K.H. Jack: J. Am. Ceram. Soc. Vol. 67 (1984), p. C46.

Google Scholar

[5] M.J. Pomeroy, C. Mulcahy, and S. Hampshire: J. Am. Ceram. Soc. Vol. 86 (1995), p.458.

Google Scholar

[6] R. Ramesh, E. Nestor, M.J. Pomeroy, and S. Hampshire: J. Eur. Ceram. Soc. Vol. 17 (1997), p. (1933).

Google Scholar

[7] Y. Menke, V. Peltier-Baron, and S. Hampshire : J. Non-Cryst. Solids Vol. 276 (2000), p.145.

Google Scholar

[8] P.F. Becher, S.B. Waters, C.G. Westmoreland and L. Riester: J. Am. Ceram. Soc. Vol. 85 (2002), p.897.

Google Scholar

[9] P.F. Becher and M.K. Ferber: J. Am. Ceram. Soc. Vol. 87 (2004), p.1274.

Google Scholar

[10] F. Lofaj, P. Hvizdoš, F. Dorčáková, R. Satet, M.J. Hoffmann and A. R. Arellano López: Mat. Sci. Eng. A Vol. 357 (2003), p.181.

Google Scholar

[11] F. Lofaj, R. Satet, M.J. Hoffmann and A. R. Arellano López: J. Eur. Ceram. Soc. Vol. 24 (2004), p.3377.

Google Scholar

[12] F. Lofaj, F. Dorčákova, E. Dolekcekic, M. LeFloch, T. Rouxel, M. J. Hoffmann and S. Hampshire: Glastech. Ber. - Glass Sci. Technol. Vol. 77C (2004), p.273.

Google Scholar

[13] F. Lofaj, S. Dériano, M. LeFloch, T. Rouxel and M. J. Hoffmann: J. Non-Cryst. Solids Vol. 344 (2004), p.8.

Google Scholar

[14] F. Lofaj, T. Rouxel and M.J. Hoffmann: Silicates Industriels, Vol. 69 (2004), p.95.

Google Scholar

[15] F. Lofaj, F. Dorčáková and M.J. Hoffmann: J. Mat. Sci., Vol. 39 (2004), in print.

Google Scholar

[16] T. Fett, D. Munz and G. Thun: Strength and Toughness Test Device with Opposite Roller Loading, Wissenschaftliche Berichte FZKA 6378, (Institut für Materialforschung, Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany, March 2000).

DOI: 10.1016/s0013-7944(00)00085-0

Google Scholar

[17] T. Fett, E. Ernst, D. Munz, D. Badenheim and R. Oberacker: J. Eur. Ceram. Soc. Vol. 23, (2003), p. (2031).

Google Scholar

[18] T. Fett, D. Creek, D. Badenheim and R. Oberacker: J. Eur. Ceram. Soc. Vol. 24, (2004), p. (2049).

Google Scholar

[19] F. Dorčáková: Physical-Mechanical Properties of the Oxynitride Glasses, PhD Thesis (IMR SAS, Košice, Slovakia, October 2004).

Google Scholar

[20] R.D. Shannon: Acta Cryst. A Vol. 32 (1976), p.751.

Google Scholar