Superhard Mo-Al-N films Composed of Grains with Different Crystallographic Orientations and/or Lattice Structures

  • Musil, J. (Department of Physics, University of West Bohemia, Institute of Physics, Academy of Sciences of the Czech Republic) ;
  • Stadnik, T. (Department of Physics, University of West Bohemia) ;
  • Cernansky, M.
  • Published : 2003.02.01

Abstract

This short communication reports on the experiment which demonstrates that superhard nanostructured films with hardness of about 40 GPa and greater can be composed not only of two or more nanocrystalline and/or amorphous phases of different materials, as it is in the case of nanocomposite coatings, but also that can be formed by a mixture of small (<10 nm) nanocrystalline grains of the same material with different crystallographic orientation and/or lattice structures. This finding opens new possibilities to develop advanced nanostructured materials with enhanced physical and functional properties.

Keywords

References

  1. S. Vepek, J. Vac. Sci. Technol., A17(1999) 2401
  2. J. Musil, Surf. Coat. Technol., 25 (2000) 322
  3. A. A. Voevodin, J. S. Zabinski, Thin Solid Films, 370 (2000) 223 https://doi.org/10.1016/S0040-6090(00)00917-2
  4. J. Musil, , 557 (2001) 142-144
  5. J. Patscheider, T. Zehnder, M. Diserens ICMCTF-2001, San Diego
  6. S. Vepek, Thin Solid Films, 317 (1998) 449-454 https://doi.org/10.1016/S0040-6090(97)00665-2
  7. J. Musil, P. Zeman, H. Hruby, P. Mayrhofer, Surf. Coat. Technol., 179 (1999) 120-121
  8. J. Musil, H. Polakova, Surf. Coat. Technol127 (2000), 99 https://doi.org/10.1016/S0257-8972(00)00560-0
  9. F. Regent, J. Musil, Surf. Coat. Technol., 146 (2001) 142-144
  10. J. Musil, Karvankova, Surf. Coat. Technol. 139 (2001) 101 https://doi.org/10.1016/S0257-8972(01)00989-6
  11. J. Musil, H. Hruby, P. Zeman, H. Zeman, R. Cerstvy, P. H. Mayrhofer, C. Mitterer, Surf. Coat. Technol., 603 (2001) 142-144
  12. J. Musil, H. Zeman, J. Kasl, Thin Solid Films, 413(1-2) (2002) 121 https://doi.org/10.1016/S0040-6090(02)00357-7
  13. C. Louro, F. Teixeira-Dias, L. F. Menezes, A. Cavaleiro, Effect of the substrate thermal expansion coefficient on the thermal residual stresses on W-Si-N sputtered films, 1st International Conference on Materials, April 9-11, 2001, Coimbra, Portugal, Paper NoTAl$C_3$, April 9-11, 2001, Materials Science Forum, (2002) in press
  14. J. Musil, J. Vlcek, F. Regent, F. Kunc, H. Zeman, Key Engineermg Materials, 613 (2002) 230-232
  15. J. Musil, H. Hruby, P. Zeman, H. Zeman, R. Cerstvy, P. H.Mayrhofer, C. Mitterer, Surf. Coat. Technol., 603 (2001) 142-144