Hydrogen storage of melt-spun amorphous Mg65Ni20Cu5Y10 alloy deformed by high-pressure torsion
- Author(s)
- A Revesz, A. Kis-Tóth, Lajos K. Varga, Erhard Schafler, Imre Bakonyi, Tony Spassov
- Abstract
Rapidly quenched amorphous Mg65Ni20Cu5Y10 metallic glass compacts were subjected to heavy shear deformation by high-pressure torsion until different amounts of ultimate strain. High-resolution X-ray diffraction analysis and scanning electron microscopy revealed that high-pressure torsion resulted in a deformation dependent microstructure. High-pressure calorimetry measurements revealed that hydrogen uptake in the fully amorphous alloy occurs at a significantly lower temperature compared to the fully crystallized state, while the amount of absorbed hydrogen increased considerably after heavy shear deformation due to the formation of Mg2Ni crystals.
- Organisation(s)
- Physics of Nanostructured Materials
- External organisation(s)
- Eötvös Loránd University Budapest, Hungarian Academy of Sciences, Sofia University "St. Kliment Ohridski"
- Journal
- International Journal of Hydrogen Energy
- Volume
- 37
- Pages
- 5769-5776
- No. of pages
- 8
- ISSN
- 0360-3199
- DOI
- https://doi.org/10.1016/j.ijhydene.2011.12.160
- Publication date
- 2012
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 210006 Nanotechnology, 103018 Materials physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/hydrogen-storage-of-meltspun-amorphous-mg65ni20cu5y10-alloy-deformed-by-highpressure-torsion(a68c1ae6-ac33-4cec-b5e1-36cdbc2f3ea4).html