Characterization of a nanocrystalline Mg-Ni alloy processed by high-pressure torsion during hydrogenation and dehydrogenation
- Author(s)
- Marcell Gajdics, Marco Calizzi, Luca Pasquini, Erhard Schafler, Adam Revesz
- Abstract
Ball-milled Mg-Ni powder has been cold-compacted and subsequently processed by severe shear deformation under high-pressure torsion. The effect of high pressure torsion on morphology and microstructure of the disk-shape samples has been characterized by scanning electron microscopy and X-ray diffraction, respectively. In order to achieve partially hydrogenated and dehydrogenated states of deformed samples, the hydrogen uptake or release was interrupted at 25%, 50% and 75% hydrogen contents in a Sieverts' type apparatus. In this paper we present the characterization of the microstructure during a full absorption-desorption cycle of the nanocrystalline Mg-Ni alloy.
- Organisation(s)
- Physics of Nanostructured Materials
- External organisation(s)
- Eötvös Loránd University Budapest, University of Bologna
- Journal
- International Journal of Hydrogen Energy
- Volume
- 41
- Pages
- 9803-9809
- No. of pages
- 7
- ISSN
- 0360-3199
- DOI
- https://doi.org/10.1016/j.ijhydene.2015.12.224
- Publication date
- 06-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103018 Materials physics
- Keywords
- ASJC Scopus subject areas
- Condensed Matter Physics, Energy Engineering and Power Technology, Fuel Technology, Renewable Energy, Sustainability and the Environment
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/characterization-of-a-nanocrystalline-mgni-alloy-processed-by-highpressure-torsion-during-hydrogenation-and-dehydrogenation(ccdf5edb-b362-49ae-9073-b3bd881a2651).html