Paper Title:
SPD Processed Alloys as Efficient Vacancy-Hydrogen Systems
| Periodical | Solid State Phenomena (Volume 114) |
|---|---|
| Main Theme | High Pressure Technology of Nanomaterials |
| Edited by | Witold Lojkowski and John R. Blizzard |
| Pages | 177-182 |
| DOI | 10.4028/www.scientific.net/SSP.114.177 |
| Citation | Arkadiusz K. Wieczorek et al., 2006, Solid State Phenomena, 114, 177 |
| Online since | July, 2006 |
| Authors | Arkadiusz K. Wieczorek, Maciej Krystian, Michael J. Zehetbauer |
| Keywords | Hydrogen Storage, Severe Plastic Deformation (SPD), Vacancy |
| Price | US$ 28,- |
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Abstract
Nanocrystallization is known to yield several improvements for the storage and uptake rate of hydrogen in solids. Usually this process is achieved by ball milling to produce a nanopowders. However, handling of these powders is risky and difficult, and there is also a high risk of introducing impurities into the storage material. In this situation materials processed by Severe Plastic Deformation (SPD) yield several advantages: (i) the materials are produced in bulk shape with 100% density; (ii) the introduction of impurities is minimized, (iii) in addition to additional grain boundaries, many dislocations and particularly vacancies are generated which may further improve the hydrogen storage capacity and kinetics.
