Nanostructuring in Ni/SiC reaction layers, investigated by imaging of atomic columns and DFT calculations

  • Hähnel A
  • Pippel E
  • Ischenko V
 et al. 
  • 5


    Mendeley users who have this article in their library.
  • 7


    Citations of this article.


Formation and structuring of the product phases of solid state reactions between nickel and silicon carbide were evidenced by high resolution electron microscopy (HREM), as well as by high angle annular dark field scanning transmission technique (HAADF-STEM) allowing the element-sensitive Z-contrast. The observed preferential orientation relationships between precipitated graphite and δ-Ni2Si as well as between the silicide and the 6H-silicon carbide substrate could be explained by epitaxial relations between the corresponding phases. The diffusion-related mechanisms of the carbon precipitation were investigated in the framework of density functional theory (DFT), yielding information on the diffusion barriers and preferential diffusion directions of carbon atoms in δ-Ni2Si. The calculated driving forces for solution and precipitation of carbon within the silicide phase are discussed. © 2008 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Density functional theory
  • Diffusion
  • Graphitic carbon
  • High resolution and analytical electron microscopy (HAADF-STEM
  • Nickel silicide
  • Silicon carbide
  • Textured growth
  • Thin films
  • Z-contrast)

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • A. Hähnel

  • E. Pippel

  • V. Ischenko

  • J. Woltersdorf

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free