We present results from the first extended X-ray absorption fine-structure studies in a Ti/Zr-based quasicrystal. The icosahedral Ti53Zr27Ni20 phase and an icosahedral Ti45Zr38Ni17 phase that also contains 1.7 hydrogen atoms for each metal atom were investigated. Experiments performed above the Ti, Ni and Zr K absorption edges have allowed to identify different types of atomic subshells around the Ti, Ni and Zr atoms. Significant differences are observed between these two quasicrystalline alloys, suggesting preferential sites for the hydrogen atoms.
|Number of pages||6|
|Journal||Materials Research Society Symposium - Proceedings|
|State||Published - 1999 Jan 1|
|Event||Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA|
Duration: 1998 Nov 30 → 1998 Dec 3