Modernist enamels: composition, microstructure and stability

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dc.contributor.authorBeltrán, Martí
dc.contributor.authorSchibille, Nadine
dc.contributor.authorBrock, Fiona
dc.contributor.authorGratuze, Bernard
dc.contributor.authorVallcorba, Oriol
dc.contributor.authorPradell, Trinitat
dc.date.accessioned2019-11-26T14:58:32Z
dc.date.available2019-11-26T14:58:32Z
dc.date.issued2019-11-13
dc.description.abstractColoured enamels from the materials used in Modernist workshops from Barcelona were produced and compared to those found in the buildings to explore the reason for the reduced stability of the blue and green enamels. They were made of a lead-zinc borosilicate glass with a low softening point, reasonable stability to corrosion and matching thermal expansion coefficient with the blown base glass, mixed with colourants and pigment particles. The historical enamels show a lead, boron and zinc depleted silica rich amorphous glass, with precipitated lead and calcium sulphates or carbonates, characteristic of extensive atmospheric corrosion. The blue and green enamels show a heterogeneous layered microstructure more prone to degradation which is augmented by a greater heating and thermal stress affectation produced by the enhanced Infrared absorbance of blue tetrahedral cobalt colour centres and copper ions dissolved in the glass and, in particular, of the cobalt spinel particles.en_UK
dc.identifier.citationBeltrán M, Schibille N, Brock F, et al, (2019) Modernist enamels: composition, microstructure and stability. Journal of the European Ceramic Society, Volume 40, April 2019, pp. 1753-1766en_UK
dc.identifier.issn0955-2219
dc.identifier.urihttps://doi.org/10.1016/j.jeurceramsoc.2019.11.038
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14766
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectatmospheric corrosionen_UK
dc.subjectmicrostructureen_UK
dc.subjectpigmentsen_UK
dc.subjectcolourantsen_UK
dc.subjectborosilicate glassen_UK
dc.subjectZincen_UK
dc.subjectLeaden_UK
dc.titleModernist enamels: composition, microstructure and stabilityen_UK
dc.typeArticleen_UK

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