Inelastic neutron scattering analysis of the thermal decomposition of kaolinite to metakaolin

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dc.contributor.authorWhite, CEen_AU
dc.contributor.authorKearley, GJen_AU
dc.contributor.authorProvis, JLen_AU
dc.contributor.authorRiley, DPen_AU
dc.date.accessioned2015-11-01T02:18:52Zen_AU
dc.date.available2015-11-01T02:18:52Zen_AU
dc.date.issued2013-12-12en_AU
dc.date.statistics2015-10-27en_AU
dc.description.abstractUnderstanding the formation of metakaolin via kaolinite dehydroxylation is extremely important for the optimization of various industrial processes. Recent investigations have reported that the different types of hydrogen atoms in kaolinite are removed concurrently during the dehydroxylation process. Here, inelastic neutron scattering (INS) is used to analyze the location and dynamics of hydrogen atoms in kaolinite, together with the changes induced during dehydroxylation. This is achieved by using prior knowledge of how the inner and inner surface hydrogen atoms contribute to the kaolinite INS spectrum in the 200–1200 cm−1 range, in combination with a semi-quantitative analysis of the experimental INS spectra. Overall, it is seen that there is a distinct preferential loss of inner surface hydrogen-atom types during the dehydroxylation process, as determined from analysis of the Al–O–H vibrational modes (consisting of deformation and torsion) in the INS spectrum. © 2013, Elsevier B.V.en_AU
dc.identifier.citationWhite, C. E., Kearley, G. J., Provis, J. L., & Riley, D. P. (2013). Inelastic neutron scattering analysis of the thermal decomposition of kaolinite to metakaolin. Chemical Physics, 427, 82-86. doi:10.1016/j.chemphys.2013.08.009en_AU
dc.identifier.govdoc6225en_AU
dc.identifier.issn0301-0104en_AU
dc.identifier.journaltitleChemical Physicsen_AU
dc.identifier.pagination82-86en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.chemphys.2013.08.009en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6377en_AU
dc.identifier.volume427en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectKaoliniteen_AU
dc.subjectOscillation modesen_AU
dc.subjectDeformationen_AU
dc.subjectTorsionen_AU
dc.subjectCalcinationen_AU
dc.subjectAtomsen_AU
dc.titleInelastic neutron scattering analysis of the thermal decomposition of kaolinite to metakaolinen_AU
dc.typeJournal Articleen_AU
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