Observations of temperature stability of γ-zirconium hydride by high-resolution neutron powder diffraction

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dc.contributor.authorWang, Zen_AU
dc.contributor.authorSteuwer, Aen_AU
dc.contributor.authorLiu, Nen_AU
dc.contributor.authorMaimaitiyili, Ten_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorBlomqvist, Jen_AU
dc.contributor.authorBjerkén, Cen_AU
dc.contributor.authorCurfs, Cen_AU
dc.contributor.authorKimpton, JAen_AU
dc.contributor.authorDaniels, JEen_AU
dc.date.accessioned2021-02-04T00:12:44Zen_AU
dc.date.available2021-02-04T00:12:44Zen_AU
dc.date.issued2016-03-15en_AU
dc.date.statistics2021-01-11en_AU
dc.description.abstractThe phase evolution in a zirconium–50 deuterium (Zr–50D, at.%) alloy system during thermal cycling has been investigated using in situ high-resolution neutron powder diffraction. The results showed that the peritectoid reaction α-Zr + δ-ZrD → γ-ZrD previously suggested to occur at high temperatures does not take place in the system. Slow cooling, from high temperatures (≥520 K) to room temperature at a rate of 5 K min−1, promoted the γ-hydride formation rather than fast cooling as reported earlier. In contrast to the observation that the δ-hydride present in the system remained at temperatures up to 740 K, the produced γ phase transformed to δ-hydride in the temperature range of 370 K–559 K, with the transformation completing at approximately 559 K. It is confirmed that the formation of the γ-hydride was reproducible with slow cooling, and a diffusion-controlled sluggish δ-to γ-hydride transformation is suggested to be responsible for the favorable development of γ-hydride during slow cooling. © 2015 Elsevier B.V.en_AU
dc.identifier.citationWang, Z., Steuwer, A., Liu, N., Maimaitiyili, T., Avdeev, M., Blomqvist, J., Bjerkén, C., Curfs, C., Kimpton, J. A., & Daniels, J. E. (2016). Observations of temperature stability of γ-zirconium hydride by high-resolution neutron powder diffraction. Journal of Alloys and Compounds, 661, 55-61, doi:10.1016/j.jallcom.2015.11.187en_AU
dc.identifier.issn0925-8388en_AU
dc.identifier.journaltitleJournal of Alloys and Compoundsen_AU
dc.identifier.pagination55-61en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2015.11.187en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10305en_AU
dc.identifier.volume661en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.relation.ispartofseries0925-8388;en_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPhase transformationsen_AU
dc.subjectMetalsen_AU
dc.subjectHydridesen_AU
dc.subjectZirconiumen_AU
dc.subjectAlloysen_AU
dc.titleObservations of temperature stability of γ-zirconium hydride by high-resolution neutron powder diffractionen_AU
dc.typeJournal Articleen_AU
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