Mechanosynthesis of nanocrystalline MgFe2O4—neutron diffraction and Mössbauer spectroscopy

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dc.contributor.authorŠepelák, Ven_AU
dc.contributor.authorBergmann, Ien_AU
dc.contributor.authorFeldhoff, Aen_AU
dc.contributor.authorLitterst, FJen_AU
dc.contributor.authorBecker, KDen_AU
dc.contributor.authorCadogan, JMen_AU
dc.contributor.authorHofmann, Men_AU
dc.contributor.authorHoelzel, Men_AU
dc.contributor.authorWang, JLen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorCampbell, SJen_AU
dc.date.accessioned2021-02-11T00:56:08Zen_AU
dc.date.available2021-02-11T00:56:08Zen_AU
dc.date.issued2010-12-22en_AU
dc.date.statistics2021-02-02en_AU
dc.description.abstractThe evolution of nanocrystalline n-MgFe2O4 by high-energy milling a mixture of MgO and α-Fe2O3 for periods of between 0 h and 12 h has been investigated by neutron diffraction in addition to previous Mössbauer, XRD and HRTEM measurements. Complete transformation of the milled products to n-MgFe2O4 only occurs on milling to ∼8 h even though the average particle size decreases to < ∼10 nm after milling for 2 h. The applied field Mössbauer spectra of n-MgFe2O4 can be well described by two subspectra representing core and shell regions with different cation distributions and spin canting angles. The neutron pattern of nanocrystalline MgFe2O4 is described well by two components comprising nanoparticles of core and shell dimensions ∼7(1) nm and ∼0.7(1) nm, respectively, in support of the Mössbauer core-shell model. © 2021 Springer Nature Switzerland AG.en_AU
dc.identifier.citationŠepelák, V., Bergmann, I., Feldhoff, A., Litterst, F. J., Becker, K. D., Cadogan, J. M., Hofmann, M., Hoelzel, M., Wang, J. L., Avdeev, M., & Campbell, S. J. (2010). Mechanosynthesis of nanocrystalline MgFe2O4—neutron diffraction and Mössbauer spectroscopy. Hyperfine Interactions, 198, 67–71. doi:10.1007/s10751-010-0243-yen_AU
dc.identifier.issn1572-9540en_AU
dc.identifier.journaltitleHyperfine Interactionsen_AU
dc.identifier.pagination67-71en_AU
dc.identifier.urihttps://doi.org/10.1007/s10751-010-0243-yen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10361en_AU
dc.identifier.volume198en_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectSpectroscopyen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectNanoparticlesen_AU
dc.subjectNanocrystalsen_AU
dc.subjectCationsen_AU
dc.titleMechanosynthesis of nanocrystalline MgFe2O4—neutron diffraction and Mössbauer spectroscopyen_AU
dc.typeJournal Articleen_AU
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