Sub-nano and nano-structures of intermetallics such as LaNi5 and its related alloys were studied by in-situ X-ray and neutron diffraction methods. From the profile shape analysis, changes in lattice strain and crystalline size during hydrogenation/dehydrogenation were estimated, while the crystal (sub-nano) structures were refined by the Rietveld method using diffraction patterns. The crystallite size of the alloys studied did not change during hydrogenation and dehydrogenation. It was found formation of remarkably dense dislocations and vacancies in the lattice of hydrides of LaNi5 and related intermetallics.
|Number of pages||7|
|Publication status||Published - 2005|
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials