Abstract
We have investigated the influence of hydrogen on the local structure of Ti-Zr-Ni alloys, icosahedral quasicrystals or crystalline approximants, using extended X-ray absorption fine structure (EXAFS). With an increasing hydrogen-to-metal ratio from 0 to 1.7, a general increase of all the mean first distances was found except for the Zr-Ni (Ni-Zr) ones. The perturbation of the (quasi)lattice, induced by hydrogenation, is a maximum around the Ti and Zr atoms, which suggests that hydrogen atoms sit preferentially near titanium and zirconium atoms.
| Original language | English |
|---|---|
| Pages (from-to) | 96-99 |
| Number of pages | 4 |
| Journal | Journal of Alloys and Compounds |
| Volume | 356-357 |
| DOIs | |
| State | Published - Aug 11 2003 |
| Event | Proceedings of the Eight International Symposium on Metal Hyd (MH 2002) - Annecy, France Duration: Sep 2 2002 → Sep 6 2002 |
Keywords
- EXAFS
- Hydrogen storage materials
- Liquid quenching
- Synchrotron radiation
- X-Ray spectroscopies