| Title | Anelasticity in nanostructured MgH2-Mg: Correlation with hydrogen sorption kinetics |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2009 |
| Authors | Pasquini, L., Amadori S., Bonetti E., Callini E., Fiorini A.L., Montone Amelia, and M. Antisari Vittori |
| Journal | Materials Science and Engineering A |
| Volume | 521-522 |
| Pagination | 151-154 |
| ISSN | 09215093 |
| Keywords | Activation energy, Anelasticity, Ball milling, Desorption, Differential scanning calorimetry, High vacuum, Hydrogen, Hydrogen desorption, Hydrogen sorption, Hydrogen storage, Internal friction peak, Magnesium, Magnesium hydride, Mechanical spectroscopy, Nano-structured, Nanostructured magnesium, Nanostructures, Resonance, Resonance frequencies, Self-Diffusion |
| Abstract | Mechanical spectroscopy is employed, in correlation with differential scanning calorimetry and hydrogen sorption analysis, to investigate the hydrogen desorption reaction in nanostructured magnesium hydride prepared by ball milling. The hydrogen desorption process is marked by a dramatic drop of the specimen's resonance frequency and by an internal friction peak that occurs - under high vacuum - at about 580 K. After full hydrogen desorption, a broad anelastic relaxation peak similar to commercial Mg is observed at 470 K, with activation energy close to the one for self-diffusion in Mg. © 2009 Elsevier B.V. All rights reserved. |
| Notes | cited By 0 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-68949096366&doi=10.1016%2fj.msea.2008.09.114&partnerID=40&md5=ffe2afbf6713dfc64e05d29a6a885f4a |
| DOI | 10.1016/j.msea.2008.09.114 |
| Citation Key | Pasquini2009151 |
