Show simple item record

Effect of talc in mixtures with fly ash on sintering crystalline phases and porosity of mullite-cordierite ceramics

dc.contributor.authorValášková, Marta
dc.contributor.authorBlahůšková, Veronika
dc.contributor.authorMartaus, Alexandr
dc.contributor.authorŠtudentová, Soňa
dc.contributor.authorVallová, Silvie
dc.contributor.authorTokarský, Jonáš
dc.date.accessioned2021-04-04T12:50:37Z
dc.date.available2021-04-04T12:50:37Z
dc.date.issued2021
dc.identifier.citationMinerals. 2021, vol. 11, issue 2, art. no. 154.cs
dc.identifier.issn2075-163X
dc.identifier.urihttp://hdl.handle.net/10084/143007
dc.description.abstractThe effect of talc in the two mixtures with the representative sample of fly ash (Class F) was investigated at sintering temperatures of 1000, 1100, and 1200 degrees C. X-ray diffraction, thermal DTA/TGA, and mercury intrusion porosimetry analyses were applied to characterize the mineral phase transformation of talc and fly ash in cordierite ceramic. The influence of iron oxide on talc transformation to Fe-enstatite was verified by the simulated molecular models and calculated XRD patterns and the assumption of Fe-cordierite crystallization was confirmed. The fly ash mixtures with 10 mass% of talc in comparison with 30 mass% of talc at 1000 degrees C and 1100 degrees C showed higher linear shrinkage and lower porosity. At a temperature of 1200 degrees C, sintering expansion and larger pores in mullite and cordierite ceramics also containing sapphirine and osumilite demonstrated that magnesium in FA and Tc structure did not react with the other constituents to form crystalline cordierite. The ceramics produced in the present work using fly ash and talc have similar properties to the commercial ceramics produced at sintering temperatures higher than 1250 degrees C.cs
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofseriesMineralscs
dc.relation.urihttp://doi.org/10.3390/min11020154cs
dc.rights© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjecttalccs
dc.subjectthermal changescs
dc.subjectmullitecs
dc.subjectcordieritecs
dc.subjectporositycs
dc.subjectX-ray diffractioncs
dc.subjectstructure analysiscs
dc.titleEffect of talc in mixtures with fly ash on sintering crystalline phases and porosity of mullite-cordierite ceramicscs
dc.typearticlecs
dc.identifier.doi10.3390/min11020154
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume11cs
dc.description.issue2cs
dc.description.firstpageart. no. 154cs
dc.identifier.wos000622856100001


Files in this item

Name:
2075-163X-2021v11i2an154.pdf
Size:
2.622Mb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record

© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Except where otherwise noted, this item's license is described as © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.