Show simple item record

dc.contributor.authorCerro, Sara
dc.contributor.authorGargori, Carina
dc.contributor.authorLlusar, Mario
dc.contributor.authorMonrós Tomás, Guillermo
dc.date.accessioned2018-10-15T09:16:17Z
dc.date.available2018-10-15T09:16:17Z
dc.date.issued2018-08-01
dc.identifier.citationCERRO, S., et al. Orthorhombic (Fe2TiO5)-monoclinic (Cr2TiO5) solid solution series: Synthesis by gel routes, coloring and NIR reflectivity evaluation. Ceramics International, 2018, vol. 44, no 11, p. 13349-13359.ca_CA
dc.identifier.issn0272-8842)
dc.identifier.urihttp://hdl.handle.net/10234/176728
dc.description.abstractCrxFe2-xTiO5 compositions of the solid solutions series from pseudobrookite Fe2TiO5 to monoclinic Cr2TiO5 have been prepared by the ceramic route and gel methods. At 1400 °C, pseudobrookite crystallizes in the x = 0–0.4 range, both pseudobrookite and monoclinic Fe-Cr2TiO5 coexist at x = 0.5, while in the range x = 0.7–1.5 monoclinic Fe-Cr2TiO5 crystallizes. Powders were 5 wt% glazed within a double-firing frit and the composition with x = 0.1 fired at 1000 °C exhibits the best red color (L*a*b* = 43.2/18.8/12.5), showing an intense band at 520 nm in the UV–Vis–NIR absorption spectrum associated with Cr4+ in octahedral coordination. The unit cell volume of the pseudobrookite decreases smoothly with the chromium amount, associated with the entrance of Cr4+ replacing Ti4+, while the volume of the Fe-Cr2TiO5 unit cell increases with the entrance of Fe3+ replacing Cr3+. The use of flux agents, the compaction pressure and the gel methods increase the crystallization of pseudobrookite but do not improve the reddish color, which is associated with the concentration of Cr4+ in the pigment. The optimized pigment composition Cr0.1Fe1.9TiO5 also shows a high NIR reflectance (55% in powder, 54% in glazed sample).ca_CA
dc.format.extent11 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherElsevierca_CA
dc.relation.isPartOfCeramics International, 2018, vol. 44, no 11ca_CA
dc.rightsCopyright © Elsevier B.V.ca_CA
dc.subjectsolid solutionca_CA
dc.subjectpseudobrookite Fe2TiO5ca_CA
dc.subjectmonoclinic Cr2TiO5ca_CA
dc.subjectcool pigmentca_CA
dc.titleOrthorhombic (Fe2TiO5)-monoclinic (Cr2TiO5) solid solution series: Synthesis by gel routes, coloring and NIR reflectivity evaluationca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttps://doi.org/10.1016/j.ceramint.2018.04.167
dc.relation.projectIDUniversitat Jaume I: P1.1B2015-19; Spanish MINECO fund: MAT2015-69443; Spanish FEDER fund: MAT2015-69443ca_CA
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccessca_CA
dc.relation.publisherVersionhttps://www.sciencedirect.com/science/article/pii/S027288421831040Xca_CA
dc.date.embargoEndDate2020-08-01
dc.type.versioninfo:eu-repo/semantics/updatedVersionca_CA


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record