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Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics
dc.creator | Krsmanović, Radenka | |
dc.creator | Bregiroux, Damien | |
dc.creator | Viana, Bruno | |
dc.date.accessioned | 2018-03-01T17:56:06Z | |
dc.date.available | 2018-03-01T17:56:06Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0272-8842 | |
dc.identifier.issn | 1873-3956 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/1787 | |
dc.description.abstract | Dense 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.relation | La Mairie de Paris | |
dc.rights | restrictedAccess | en |
dc.source | Ceramics International | en |
dc.subject | A. Grain growth | en |
dc.subject | A. Sintering | en |
dc.subject | B. Electron microscopy | en |
dc.subject | D. Y2O3 | en |
dc.title | Nanostructured Y2O3 ceramics elaborated by Spark Plasma Sintering of nanopowder synthesized by PEG assisted combustion method: The influence of precursor morphological characteristics | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Виана, Бруно; Крсмановић Раденка; Брегироуx, Дамиен; | |
dc.citation.volume | 43 | |
dc.citation.issue | 17 | |
dc.citation.spage | 15834 | |
dc.citation.epage | 15841 | |
dc.identifier.wos | 000413175300173 | |
dc.identifier.doi | 10.1016/j.ceramint.2017.08.153 | |
dc.citation.rank | aM21 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85028362282 |