Characterization of a nanocrystalline Mg-Ni alloy processed by high-pressure torsion during hydrogenation and dehydrogenation

Autor(en)

Marcell Gajdics, Marco Calizzi, Luca Pasquini, Erhard Schafler, Adam Revesz

Abstrakt

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(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Eötvös Loránd University Budapest, Università di Bologna

Journal

International Journal of Hydrogen Energy

Band

41

Seiten

9803-9809

Anzahl der Seiten

7

ISSN

0360-3199

DOI

https://doi.org/10.1016/j.ijhydene.2015.12.224

Publikationsdatum

06-2016

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Energy Engineering and Power Technology, Fuel Technology, Renewable Energy, Sustainability and the Environment

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/ccdf5edb-b362-49ae-9073-b3bd881a2651