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The effect of 15 wt%Al2O3 addition on the equilibrium phase relations of CaO–SiO2–TiO2 system at 1400 °C in air

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Wan, Xingbang
dc.contributor.author Shi, Junjie
dc.contributor.author Qiu, Yuchao
dc.contributor.author Chen, Min
dc.contributor.author Li, Jianzhong
dc.contributor.author Liu, Changsheng
dc.contributor.author Taskinen, Pekka
dc.contributor.author Jokilaakso, Ari
dc.date.accessioned 2021-09-02T08:47:57Z
dc.date.available 2021-09-02T08:47:57Z
dc.date.issued 2021-09-01
dc.identifier.citation Wan , X , Shi , J , Qiu , Y , Chen , M , Li , J , Liu , C , Taskinen , P & Jokilaakso , A 2021 , ' The effect of 15 wt%Al 2 O 3 addition on the equilibrium phase relations of CaO–SiO 2 –TiO 2 system at 1400 °C in air ' , Ceramics International , vol. 47 , no. 17 , pp. 24802-24808 . https://doi.org/10.1016/j.ceramint.2021.05.205 en
dc.identifier.issn 0272-8842
dc.identifier.issn 1873-3956
dc.identifier.other PURE UUID: fc289412-20ab-4572-a6f1-53b7904749bd
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/fc289412-20ab-4572-a6f1-53b7904749bd
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85107140632&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/65162938/CHEM_Wan_et_al_The_effect_of_15_2021_Ceramics_International.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/109630
dc.description Funding Information: This study received financial support from Aalto University . The authors would also like to acknowledge the financial support from the China Postdoctoral Science Foundation [Grant number 2020TQ0059 , 2020M680967 ], the Fundamental Research Funds for the Central Universities [N2125010] and China Scholarship Council [Grant number 201706370096 , 201806370217 ]. Publisher Copyright: © 2021 Elsevier Ltd and Techna Group S.r.l.
dc.description.abstract The combined processing of industrial wastes of titania-bearing slags with coal fly ash is an important part of the circular economy. In the present work, the effect of Al2O3 on the 1400 °C liquidus isotherms of the perovskite, rutile and tridymite primary phase fields in the CaO–SiO2–TiO2–Al2O3 system has been determined by employing a high-temperature equilibration-quenching technique, followed by X-ray Photoelectron Spectroscopy and Scanning Electron Microscopy-Energy Dispersive X-ray Spectrometry. Titanium was confirmed to be stable as TiO2 in the present equilibria. The equilibrium solid phases of perovskite CaO·TiO2, rutile TiO2 and tridymite SiO2 were confirmed to be coexisting with the liquid oxide phase. The comparison of the addition of 0–15 wt% Al2O3 was beneficial for expanding the primary phase field of perovskite to lower TiO2 concentrations. Comparisons of the experimental 1400 °C isotherm with the predictions using FactSage and MTDATA databases confirmed some differences to the present experimental data, thus demonstrating the direction for updating the present thermodynamic titania-bearing oxide databases. en
dc.format.extent 7
dc.format.extent 24802-24808
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier Limited
dc.relation.ispartofseries Ceramics International en
dc.relation.ispartofseries Volume 47, issue 17 en
dc.rights openAccess en
dc.title The effect of 15 wt%Al2O3 addition on the equilibrium phase relations of CaO–SiO2–TiO2 system at 1400 °C in air en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemical and Metallurgical Engineering
dc.contributor.department Northeastern University China
dc.contributor.department Metallurgy (MTG)
dc.subject.keyword AlO
dc.subject.keyword FactSage
dc.subject.keyword Perovskite
dc.subject.keyword Phase diagram
dc.subject.keyword Titania-bearing slag
dc.subject.keyword Urban mining
dc.identifier.urn URN:NBN:fi:aalto-202109028862
dc.identifier.doi 10.1016/j.ceramint.2021.05.205
dc.date.embargo info:eu-repo/date/embargoEnd/2023-09-01

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