Grain size and structure distortion characterization of α-MgAgSb thermoelectric material by powder diffraction

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dc.contributor.authorLi, XYen_AU
dc.contributor.authorZhang, Zen_AU
dc.contributor.authorHe, Len_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorRen, Yen_AU
dc.contributor.authorZhao, Hen_AU
dc.contributor.authorWang, Fen_AU
dc.date.accessioned2021-07-14T05:09:59Zen_AU
dc.date.available2021-07-14T05:09:59Zen_AU
dc.date.issued2020-05-21en_AU
dc.date.statistics2021-07-06en_AU
dc.description.abstractNanostructuring, structure distortion, and/or disorder are the main manipulation techniques to reduce the lattice thermal conductivity and improve the figure of merit of thermoelectric materials. A single-phase α-MgAgSb sample, MgAg0.97Sb0.99, with high thermoelectric performance in near room temperature region was synthesized through a high-energy ball milling with a hot-pressing method. Here, we report the average grain size of 24–28 nm and the accurate structure distortion, which are characterized by high-resolution neutron diffraction and synchrotron x-ray diffraction with Rietveld refinement data analysis. Both the small grain size and the structure distortion have a contribution to the low lattice thermal conductivity in MgAg0.97Sb0.99. © 2020 Chinese Physical Society and IOP Publishing Ltden_AU
dc.identifier.articlenumber106101en_AU
dc.identifier.citationLi, X., Zhang, Z., He, L., Avdeev, M., Ren, Y., Zhao, H., & Wang, F. (2020). Grain size and structure distortion characterization of α-MgAgSb thermoelectric material by powder diffraction. Chinese Physics B, 29(10), 106101. doi:10.1088/1674-1056/aba09cen_AU
dc.identifier.issn1674-1056en_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitleChinese Physics Ben_AU
dc.identifier.urihttps://doi.org/10.1088/1674-1056/aba09cen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11062en_AU
dc.identifier.volume29en_AU
dc.language.isoenen_AU
dc.publisherIOP Publishingen_AU
dc.subjectThermal conductivityen_AU
dc.subjectThermoelectric materialsen_AU
dc.subjectNanostructuresen_AU
dc.subjectHot pressingen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectX-ray diffractionen_AU
dc.titleGrain size and structure distortion characterization of α-MgAgSb thermoelectric material by powder diffractionen_AU
dc.typeJournal Articleen_AU
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