Surface chemical characterisation of multicomponent titanate powders

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dc.contributor.authorBartlett, JRen_AU
dc.contributor.authorWoolfrey, JLen_AU
dc.date.accessioned2025-09-01T06:51:26Zen_AU
dc.date.available2025-09-01T06:51:26Zen_AU
dc.date.issued1991-08en_AU
dc.date.statistics2025-08-01en_AU
dc.descriptionPhysical copy held by ANSTO Library at 620.14/9. Conference name also called "2nd International Ceramic Conference and Exhibition" on preface.en_AU
dc.description.abstractSynroc is a multicomponent, multiphase, titanate ceramic designed to immobilise high level waste (HLW) from nuclear reactors [1]. The Synroc concept involves immobilising the elements present in HLW within an assemblage of thermodynamically stable mineral phases (hollandite, zirconolite and perovskite). These minerals are formed during calcination and hot-pressing of a precursor powder containing TiO1, ZrO2, A1203, BaO, and CaO in relative mass abundances of (7O.4to 76.4),(5.5 to 8.5),(3.5 to 5.5),(4.6to 6.6) and (10.1 to 12.1) percent, respectively. Synroc powders are typically produced by advanced chemical methods involving alkoxide hydrolysis. The detailed chemistry of these methods has been described previously [2,3]. This paper investigates the relationship between surface speciation and powder processing techniques, and examines methods for controlling interfacial chemical processes by selection of processing parameters.en_AU
dc.identifier.citationBartlett, J. R., & Woolfrey, J. L. (1990). Surface chemical characterisation of multicomponent titanate powders. Paper presented to the International Ceramic Conference (AUSTCERAM 90: ceramics technology - sharing the knowledge), Perth, Western Australia, 26-31 August 1990. Key Engineering Materials, 48-50, 679-685.en_AU
dc.identifier.conferenceenddate1990-08-31en_AU
dc.identifier.conferencenameInternational Ceramic Conference (AUSTCERAM 90: ceramics technology - sharing the knowledge)en_AU
dc.identifier.conferenceplacePerth, Western Australiaen_AU
dc.identifier.conferencestartdate1990-08-26en_AU
dc.identifier.isbn0878496084en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleKey Engineering Materialsen_AU
dc.identifier.pagination679-685en_AU
dc.identifier.placeofpublicationAedermannsdorf, Switzerlanden_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16425en_AU
dc.identifier.volume48-50en_AU
dc.publisherTrans Tech Publicationsen_AU
dc.subjectSynroc processen_AU
dc.subjectSynthetic rocksen_AU
dc.subjectTitanatesen_AU
dc.subjectCeramicsen_AU
dc.subjectHigh-level radioactive wastesen_AU
dc.subjectReactorsen_AU
dc.subjectRadioactive waste disposalen_AU
dc.subjectHot pressingen_AU
dc.subjectHollanditeen_AU
dc.subjectZirconoliteen_AU
dc.subjectPerovskiteen_AU
dc.subjectCalcinationen_AU
dc.subjectHydrolysisen_AU
dc.subjectChemical propertiesen_AU
dc.titleSurface chemical characterisation of multicomponent titanate powdersen_AU
dc.typeConference Paperen_AU
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