One-step hydrothermal synthesis of yttria-stabilized tetragonal zirconia polycrystalline nanopowders for blue-colored zirconia-cobalt aluminate spinel composite ceramics

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dc.contributor.authorYurdakul, Arife
dc.contributor.authorGocmez, Hasan
dc.date.accessioned2021-02-19T21:16:17Z
dc.date.available2021-02-19T21:16:17Z
dc.date.issued2019
dc.departmentALKÜ
dc.description.abstractA novel approach for the preparation of blue-color giving zirconia nanopowders by doping of 3 mol% Y2O3 through simple one-step hydrothermal process is proposed. A blue-color giving yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) powders were prepared by urea-based solution, zirconium acetate, CoCl2 center dot 6H(2)O and AlCl3 precursors in hydrothermal vessel at 24 h, 150 degrees C and 20 bars. Based on the results, the synthesized bluecolor giving Y-TZP nanopowders have entirely tetragonal structure as mono phase with 3.8 +/- 0.2 nm average grain size and (Y, Co, Al)(x)ZrO2; x <= 0.03 at. with chemical composition. Thermal treatment was also applied to synthesized Y-TZP powders at 1200 degrees C and 1450 degrees C to observe the color evolution. Only sharp blue was obtained in Y-TZP powders resulting the development of zirconia-cobalt aluminate spinel (ZrO2-CoAl2O4) composite ceramic structure for both temperatures after heat-treatment. Herein, not only formation of CoAl2O4 but also incorporation of cobalt (Co) and aluminum (Al) into the Y-TZP grains plays a critical role on evolving of blue color. This synthesized Y-TZP nanopowders can be a good candidate for one-step production of blue-color sintered ZrO2-CoAl2O4 spinel composite ceramics in numerous ceramic applications due to their superior structural and functional properties.
dc.identifier.doi10.1016/j.ceramint.2018.11.240
dc.identifier.endpage5406en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage5398en_US
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2018.11.240
dc.identifier.urihttps://hdl.handle.net/20.500.12868/362
dc.identifier.volume45en_US
dc.identifier.wosWOS:000459365500027
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPowders: chemical preparation
dc.subjectElectron microscopy
dc.subjectMicrostructure-final
dc.subjectZrO2
dc.titleOne-step hydrothermal synthesis of yttria-stabilized tetragonal zirconia polycrystalline nanopowders for blue-colored zirconia-cobalt aluminate spinel composite ceramics
dc.typeArticle

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