Starch consolidation of SiC ceramics: processing and low-temperature sintering in an air atmosphere

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dc.authorid0000-0001-7515-5427en_US
dc.contributor.authorKalemtaş, Ayşe
dc.contributor.authorTopates, Gulsum
dc.contributor.authorAydin, M. Turkay Aytekin
dc.contributor.authorOzey, Nigar
dc.date.accessioned2021-03-20T20:12:23Z
dc.date.available2021-03-20T20:12:23Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.description.abstractHighly porous SiC ceramics containing borax decahydrate were produced by a starch consolidation method in which corn starch was used as a shaping and pore-forming additive. Four different compositions were prepared with different SiC:borax decahydrate ratios and corn starch content. Mixtures with a solid ratio of 55 wt.% were cast in non-porous molds and heated at 80 degrees C for shaping. The starch consolidation technique enabled the shaping of SiC ceramics with different forms and sizes. Simultaneous thermogravimetry and differential thermal analysis of the SiC-borax decahydrate mixture showed that melting took place at below 600 degrees C, as a result of which sintering was carried out at the relatively low temperature, of 600 degrees C in the air using borax decahydrate as a sintering additive. Phase analysis showed that oxidation of SiC did not take place, since no cristobalite phase was detected. Density measurement and mercury porosimetry studies showed that highly porous (70-89% porosity) SiC ceramics with pore size values ranging from 14 to 18 mu m were produced. SEM microstructures of each composition revealed that a strong neck had been formed between the SiC particles in spite of the low sintering temperature.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [114M510]en_US
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK Project No: 114M510).en_US
dc.identifier.doi10.1080/21870764.2019.1710017en_US
dc.identifier.endpage115en_US
dc.identifier.issn2187-0764
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage106en_US
dc.identifier.urihttp://doi.org/10.1080/21870764.2019.1710017
dc.identifier.urihttps://hdl.handle.net/20.500.12885/524
dc.identifier.volume8en_US
dc.identifier.wosWOS:000506274000001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorKalemtaş, Ayşe
dc.language.isoenen_US
dc.publisherTaylor & Francis Ltden_US
dc.relation.ispartofJournal Of Asian Ceramic Societiesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectStarch consolidationen_US
dc.subjectPorous SiCen_US
dc.subjectTG-DTAen_US
dc.subjectSintering under atmospheric conditionsen_US
dc.subjectLow-temperature sinteringen_US
dc.titleStarch consolidation of SiC ceramics: processing and low-temperature sintering in an air atmosphereen_US
dc.typeArticleen_US

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