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dc.contributor.authorMontinaro, Selena
dc.contributor.authorDesogus, Luca
dc.contributor.authorOrrù, Roberto
dc.contributor.authorGarroni, Sebastiano 
dc.contributor.authorDelogu, Francesco
dc.contributor.authorRicci, Pier Carlo
dc.contributor.authorCao, Giacomo
dc.date.accessioned2021-04-27T08:52:46Z
dc.date.available2021-04-27T08:52:46Z
dc.date.issued2018-01
dc.identifier.issn0002-7820
dc.identifier.urihttp://hdl.handle.net/10259/5734
dc.description.abstractThe interaction of fully dense 45S5‐bioglass derived samples produced by Spark Plasma Sintering (SPS) with simulated body fluid (SBF) solution was investigated in detail taking advantage of the Rietveld refinement method to quantitatively evidence the corresponding microstructural and compositional changes. It is observed that, when the original amorphous nature is mostly (75 wt%) preserved in the material during sintering (550°C, 2 minutes), the resulting specimens dissolve faster and determine relatively higher pH increase and ions release in the SBF solution. Correspondingly, a relatively lower amount of hydroxycarbonate apatite (HCA) is formed on their surface. In contrast, a more extensive apatite layer with trabecular structure is generated within 3 days storage on the surface of fully crystallized samples obtained at 600°C by SPS, which only consists of Na–Ca silicate grains (20 nm). Moreover, as the sintering temperature and dwell time were increased to 700°C and 20 minutes, respectively, a rhenanite‐like phase was also formed (about 15 wt%), other than crystallites growth to 90 nm. Interestingly, the presence of rhenanite provides a beneficial contribution for the production of the HCA layer, which was found the largest for this system when considering storage periods of 7 and 14 days, respectively.en
dc.description.sponsorshipRegione Autonoma della Sardegna (Italy). Grant Number: CUP n. F71J11001070002es
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherWileyes
dc.relation.ispartofJournal of the American Ceramic Society. 2018, V. 101, n. 1, p. 116-130es
dc.subjectbioactive glassesen
dc.subjectin vitro testen
dc.subjectRietveld methoden
dc.subjectspark plasma sinteringen
dc.subject.otherMaterialeses
dc.subject.otherMaterialsen
dc.subject.otherEnsayos (Tecnología)es
dc.subject.otherTestingen
dc.titleA comprehensive study on compositional and structural changes in 45S5 bioglass products exposed to simulated body fluiden
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1111/jace.15199es
dc.identifier.doi10.1111/jace.15199
dc.relation.projectIDinfo:eu-repo/grantAgreement/Regione Autonoma della Sardegna/F71J11001070002
dc.journal.titleJournal of the American Ceramic Societyes
dc.volume.number101es
dc.issue.number1es
dc.page.initial116es
dc.page.final130es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones


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