Hydrogen storage capability of MgNi 2 processed by high pressure torsion

Hydrogenation was undertaken in MgNi 2 after intense straining by the process of high pressure torsion (HPT). Despite the general acceptance that MgNi 2 is not a hydrogen absorber, quantitative analysis demonstrated that the HPT process introduced the capability of hydrogen storage in MgNi 2. Althou...

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Bibliographic Details
Published inScripta materialia Vol. 57; no. 8; pp. 751 - 753
Main Authors Kusadome, Yuichiro, Ikeda, Kazutaka, Nakamori, Yuko, Orimo, Shinichi, Horita, Zenji
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2007
Subjects
High pressure torsion
Hydrogen storage
MgNi 2
Severe plastic deformation
XRD
Hydrogen storage
MgNi 2
Severe plastic deformation
High pressure torsion
XRD
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Summary:Hydrogenation was undertaken in MgNi 2 after intense straining by the process of high pressure torsion (HPT). Despite the general acceptance that MgNi 2 is not a hydrogen absorber, quantitative analysis demonstrated that the HPT process introduced the capability of hydrogen storage in MgNi 2. Although the total hydrogen content was not sufficient, the hydrogen storage performance clearly appeared in the MgNi 2. XRD analysis suggested that the hydrogen should be present at grain boundaries.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2007.06.042