In situ neutron-diffraction study of the Ti38V30Cr14Mn18 structure during hydrogenation

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dc.contributor.authorFei, Yen_AU
dc.contributor.authorKong, Xen_AU
dc.contributor.authorWu, Zen_AU
dc.contributor.authorLi, HHen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2013-10-14T23:49:19Zen_AU
dc.date.available2013-10-14T23:49:19Zen_AU
dc.date.issued2013-11-01en_AU
dc.date.statistics2013-10-14en_AU
dc.description.abstractThe phase transformations of the Ti38V30Cr14Mn18 alloy during hydrogenation and dehydrogenation using deuterium (D2) were investigated using in situ neutron powder diffraction (NPD) at various D2 pressures up to 2 MPa. Initially, the first hydride that formed, Ti38V30Cr14Mn18D15, had the same body centered cubic (BCC) crystal structure as the starting alloy. Upon further hydrogenation, the system displays a distinct two-phase mixture of the intermediate BCC and body-centered tetragonal (BCT) phases, that exist in a ration of 1.38:1.42, respectively. At the end of the deuterium absorption, the phase pure Ti38V30Cr14Mn18D183 material forms, with a face-centered cubic (FCC) structure. Upon dehydrogenation, all hydride phases eventually returned to the initial alloy phase without any amorphization or disproportionation. Using standard Rietveld refinement, information on the variation of the deuterium site occupancy, the lattice symmetry, and the cell volume were determined during these phase changes and are presented. © 2013, Elsevier Ltd.en_AU
dc.identifier.citationFei, Y., Kong, X., Wu, Z., Li, H., & Peterson, V. K. (2013). In situ neutron-diffraction study of the Ti38V30Cr14Mn18 structure during hydrogenation. Journal of Power Sources, 241, 355-358. doi:10.1016/j.jpowsour.2013.04.118en_AU
dc.identifier.govdoc5070en_AU
dc.identifier.issn0378-7753en_AU
dc.identifier.journaltitleJournal of Power Sourcesen_AU
dc.identifier.pagination355-358en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jpowsour.2013.04.118en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4798en_AU
dc.identifier.volume241en_AU
dc.language.isoenen_AU
dc.publisherElsevier Science BVen_AU
dc.subjectThalliumen_AU
dc.subjectChromiumen_AU
dc.subjectManganeseen_AU
dc.subjectHydrogenen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPhase transformationsen_AU
dc.titleIn situ neutron-diffraction study of the Ti38V30Cr14Mn18 structure during hydrogenationen_AU
dc.typeJournal Articleen_AU
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