Why freeze-casting brings different phase composition of calcium phosphates?

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dc.contributor.authorMařáková, Luciecs
dc.contributor.authorRoleček, Jakubcs
dc.contributor.authorSalamon, Davidcs
dc.coverage.issue1cs
dc.coverage.volume7cs
dc.date.issued2021-09-01cs
dc.description.abstractThe impact of freeze-casting on the porosity, pore distribution, and phase composition was studied and compared with conventional shaping techniques. A bimodal pore size distribution was observed in freeze-cast + freeze-dried samples, in contrast to the unimodal one in freeze-cast + air-dried and conventionally prepared samples. The densification of freeze-cast + freeze-dried samples started at about 50 °C higher than their conventional counterparts (~870 °C vs. 920 °C). Diffusion seems to be a key parameter for the phase transformation of HAP into -TCP during sintering. The residual HAP content in the sintered samples was influenced by used freezing rate and varied from 4% to 30% (unimodal samples), and from 7% to 16% (bimodal samples). Although further experiments must be carried out, our results showed that the freeze-casting parameters affect the resulting porosity and phase composition regardless of whether the freeze-drying or air-drying was used afterward.en
dc.formattextcs
dc.format.extent1595-1602cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationOpen Ceramics. 2021, vol. 7, issue 1, p. 1595-1602.en
dc.identifier.doi10.1016/j.oceram.2021.100161cs
dc.identifier.issn2666-5395cs
dc.identifier.orcid0000-0002-2147-9917cs
dc.identifier.orcid0000-0001-7190-3985cs
dc.identifier.orcid0000-0002-3267-5235cs
dc.identifier.other176560cs
dc.identifier.researcheridB-8495-2019cs
dc.identifier.researcheridA-6219-2012cs
dc.identifier.scopus15822747200cs
dc.identifier.urihttp://hdl.handle.net/11012/204047
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofOpen Ceramicscs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0955221918307246cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2666-5395/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectIce-templatingen
dc.subjectRobocastingen
dc.subjectIndirect 3D printingen
dc.subjectWhitlockiteen
dc.subjectHydroxyapatiteen
dc.titleWhy freeze-casting brings different phase composition of calcium phosphates?en
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176560en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:59en
sync.item.modts2025.01.17 16:41:29en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilá multifunkční keramikacs
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Pokročilá multifunkční keramika