Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-19T13:10:23.424Z Has data issue: false hasContentIssue false
  • English
  • Français

Wetting and friction on quasicrystals and related compounds

Published online by Cambridge University Press:  01 February 2011

Jean Marie Dubois ,
Vincent Fournée  and
Esther Belin-Ferré
Jean Marie Dubois
Affiliation:
Laboratoire de Science et Génie des Matériaux et de Métallurgie, UMR CNRS INPL 7584, Ecole des Mines de Nancy, F-54042 Nancy.
Vincent Fournée
Affiliation:
Laboratoire de Science et Génie des Matériaux et de Métallurgie, UMR CNRS INPL 7584, Ecole des Mines de Nancy, F-54042 Nancy.
Esther Belin-Ferré
Affiliation:
Laboratoire de Chimie Physique Matière et Rayonnement (UMR 7614), 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05.
Get access

Abstract

Reduced wetting and friction are two essential surface properties that to a large extent currently embody the technological potential of quasicrystalline coatings. By quasicrystalline compounds, one considers here the whole family of complex Al-(Cu or Pd)-(Fe, Cr or Mn) intermetallics, which comprises true quasicrystals, their approximants and some crystalline materials of related composition.

Although covered by a layer of native Al2O3 oxide, wetting by water on these materials exhibits a clear correlation between the reversible adhesion energy of water and the bulk density of states at the Fermi energy. Similarly, in high vacuum, the friction coefficient measured in contact against a hard-steel rider is characteristically smaller than the one measured against conventional metallic alloys (including steel). Observing that wear is nearly non existent under such friction conditions, experiment allows us for the first time to derive a fair estimate of the true surface energy of quasicrystals and related complex metallic alloys. Similarly to wetting, the electronic density of states seems to determine the friction characteristics of these compounds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 805: Symposium LL – Quasicrystals , 2003 , LL8.6
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Johnson, K.L. and Greenwood, J.A., J. Coll. Interface Sc. 192, 326–333 (1997).Google Scholar
2. Vitos, L., Ruban, A.V., Skriver, H.L. and Kollar, J., Surf. Sci. 411, 186–202 (1998).Google Scholar
3. Belin-Ferré, E., Fournée, V. and Dubois, J.M., Mat. Trans. JIM 42–6, 911–919 (2001).Google Scholar
4. Dubois, J.M., Brunet, P. and Belin-Ferré, E., in Quasicrystals, Current Topics, Eds. Belin-Ferré, E. et al., World Scientific, Singapore (2000), p. 498–532.Google Scholar
5. Dubot, P., Cénédèse, P. and Gratias, D., Phys. Rev. B 68, 033403 1–4 (2003).Google Scholar
6. Janot, C. and Dubois, J.M., Les Quasicristaux, Matière à Paradoxes, EDP Sciences, Les Ulis (1998).Google Scholar
7. Dubois, J.M., to appear in Ferroelectrics (2003).Google Scholar
8. Fournée, V., Ross, A.R., Lograsso, T.A., Evans, J.W. and Thiel, P.A., Surf. Sci. 537, 5–26 (2003).Google Scholar
9. Good, R.J., J. Adhesion Sci. Technol. 6–12, 1269–1302 (1992).Google Scholar
10. Dubois, J.M., Useful Quasicrystals, World Scientific, Singapore (2004), in press.Google Scholar
11. The thickness of the oxide layer was measured at Ames Laboratory, Iowa, USA, based on XPS data according to the standard procedure of B.R. Strohmeier, Surf. Interf. Anal. 15 (1990) 51.Google Scholar
12. Again, the model can not yield a realistic representation of WH2O at infinitely small oxide thickness. This point is discussed later in this section of the paper.Google Scholar
13. Demange, V., Milandri, A., de Weerd, M.C., Machizaud, F., Jeandel, G. and Dubois, J.M., Phys. Rev. B 6–14, 144205 1–12 (2002).Google Scholar
14. Jennings, P.J. and Jones, R.O., Advances in Physics, 37–3, 341–356 (1988).Google Scholar
15. Israelachvili, J., Intermolecular and Surface Forces (Academic Press, London, 1985).Google Scholar
16. Young, T., Philos. Trans. Roy. Soc. London 95, 65–78 (1805).Google Scholar
17. Bonhomme, G., LeMieux, M., Weisbecker, P., Tsukruk, V. V. and Dubois, J. M., J. Non Cryst. Solids, in press.Google Scholar
18. Eustatopoulos, N., Nicholas, M.-G. and Drevet, B., Wettability at High Temperatures, Elsevier, Amsterdam (1999).Google Scholar