AlF3-assisted flux growth of mullite whiskers and their application in fabrication of porous mullite-alumina monoliths

dc.contributor.authorAbdullayev, Amanmyrat
dc.contributor.authorKlimm, Detlef
dc.contributor.authorKamutzki, Franz
dc.contributor.authorGurlo, Aleksander
dc.contributor.authorBekheet, Maged F.
dc.date.accessioned2022-01-18T13:36:27Z
dc.date.available2022-01-18T13:36:27Z
dc.date.issued2021
dc.description.abstractMullite is a promising material with its competitive thermochemical and mechanical properties. Although mullite could be obtained by several synthesis methods, the flux method emerges with its advantages over other methods. However, obtaining mullite whiskers with a high aspect ratio and length for ceramic reinforcements is still challenging. In this work, mullite whiskers were grown from AlF3-assisted flux. The addition of AlF3 to flux salt not only decreases the formation temperature of mullite to as low as 700 ​°C and suppresses the formation of corundum side phase, but also increases the length and aspect ratio of the whiskers. The obtained mullite whiskers were used as reinforcement for porous alumina monoliths prepared by the freeze casting route and subsequent sintering at 1500 ​°C. The fabricated mullite-alumina monoliths show competitive compressive strength of 25.7 ​MPa while having as high as 70.6% porosity, which makes them a potential candidate for membrane applications.en
dc.description.sponsorshipDFG, 414044773, Open Access Publizieren 2021 - 2022 / Technische Universität Berlinen
dc.identifier.eissn2666-5395
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/16093
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-14867
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-15348en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc670 Industrielle Fertigungde
dc.subject.othermulliteen
dc.subject.othermolten salten
dc.subject.othercrystal growthen
dc.subject.otherfreeze castingen
dc.subject.otherreinforced ceramicsen
dc.titleAlF3-assisted flux growth of mullite whiskers and their application in fabrication of porous mullite-alumina monolithsen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber100145en
dcterms.bibliographicCitation.doi10.1016/j.oceram.2021.100145en
dcterms.bibliographicCitation.journaltitleOpen ceramicsen
dcterms.bibliographicCitation.originalpublishernameElsevieren
dcterms.bibliographicCitation.originalpublisherplaceAmsterdamen
dcterms.bibliographicCitation.volume7en
tub.accessrights.dnbfreeen
tub.affiliationFak. 3 Prozesswissenschaften>Inst. Werkstoffwissenschaften und -technologien>FG Keramische Werkstoffede
tub.affiliation.facultyFak. 3 Prozesswissenschaftende
tub.affiliation.groupFG Keramische Werkstoffede
tub.affiliation.instituteInst. Werkstoffwissenschaften und -technologiende
tub.publisher.universityorinstitutionTechnische Universität Berlinen
Files
Original bundle
Now showing 1 - 1 of 1
Loading…
Thumbnail Image
Name:
1-s2.0-S2666539521000912-main.pdf
Size:
2.87 MB
Format:
Adobe Portable Document Format
Description:
Collections