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dc.creatorKrsmanović, Radenka
dc.creatorBregiroux, Damien
dc.creatorViana, Bruno
dc.date.accessioned2018-03-01T17:56:06Z
dc.date.available2018-03-01T17:56:06Z
dc.date.issued2017
dc.identifier.issn0272-8842 (print)
dc.identifier.issn1873-3956 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1787
dc.description.abstractDense yttria ceramics were prepared by Spark Plasma Sintering of a nanopowder synthesized using a PEG assisted combustion method. Densification occurs between 800 degrees C and 900 degrees C without any additive. This corresponds to one of the lowest sintering temperature found in the literature for Y2O3. Because of a significant release of organic species, the Y2O3 precursors obtained by this synthesis route contains macropores that have a negative impact on the final microstructure. We show that the emergence of these macropores can be minimized by decreasing the annealing temperature used for the precursor powder (in a temperature range of 300-650 degrees C) as opposed to the usual 800 degrees C. Finally, a precursor annealed at 650 degrees C allows us to obtain fully dense ceramics, with a very fine and homogeneous microstructure (and a grain size around 300 nm). Vickers microhardness and fracture toughness were measured and discussed in relation to the microstructure of the ceramics.en
dc.relationLa Mairie de Paris
dc.rightsrestrictedAccessen
dc.sourceCeramics Internationalen
dc.subjectA. Grain growthen
dc.subjectA. Sinteringen
dc.subjectB. Electron microscopyen
dc.subjectD. Y2O3en
dc.titleNanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristicsen
dc.typearticleen
dcterms.abstractВиана, Бруно; Крсмановић Раденка; Брегироуx, Дамиен;
dc.citation.volume43
dc.citation.issue17
dc.citation.spage15834
dc.citation.epage15841
dc.identifier.wos000413175300173
dc.identifier.doi10.1016/j.ceramint.2017.08.153
dc.identifier.scopus2-s2.0-85028362282


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