Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10626263 | Ceramics International | 2011 | 6 Pages |
Abstract
In order to improve the hydrogen-storage properties of magnesium, oxides, metallic element(s) and a hydride-forming element were added to Mg by grinding under a hydrogen atmosphere (reactive mechanical grinding). As the oxides, Fe2O3 purchased, Fe2O3 prepared by spray conversion, MnO purchased, SiO2 prepared by spray conversion, and Cr2O3 prepared by spray conversion were chosen. As the metallic elements, Ni, Fe, and Mo were selected. In addition, as the hydride-forming element, Ti was selected. Samples with the compositions of Mg-10Â wt%oxide, 76.5Â wt%Mg-23.5Â wt%Ni, 71.5Â wt%Mg-23.5Â wt%Ni-5wt% Fe2O3, 71.5Â wt%Mg-23.5Â wt%Ni-5Â wt%Fe, and Mg-14Â wt%Ni-2Â wt%Fe-2wt%Ti-2Â wt%Mo were prepared. The hydrogen-storage properties and changes in phase and microstructure after the hydriding-dehydriding cycling of the prepared samples were then investigated.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Myoung Youp Song, Sung Nam Kwon, Jean-Louis Bobet, Hye Ryoung Park,