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Article Dans Une Revue Applied physics. A, Materials science & processing Année : 2012

Copper red glazes: a coating with two families of particles

Résumé

In order to explain the origin of the deep red color of copper glazes on ceramics, a ceramist has elaborated, by firing under reducing atmosphere, a significant number of tiles. The analysis of the structure and composition of a representative sample by TEM and EELS, followed by an optical characterization and an optical modeling using the radiative transfer approach (four-flux model) have enabled a comprehensive explanation of the origin of the color in these glazes. The presence of two families of copper nanoparticles in the vitreous matrix. The first, purely absorbing, of diameter 10-50 nm, essentially creates color by a substractive process. The second, due to its larger diameter, 100 nm or more, mainly acts on color by scattering of the visible light. Both act competitively in the layer. A color chart of all the hues which can be reached by this technique has eventually been theoretically calculated.
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Dates et versions

hal-00786538 , version 1 (09-02-2013)

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Pierre-Antoine Cuvelier, Christine Andraud, Damien Chaudanson, Jacques Lafait, S. Nitsche. Copper red glazes: a coating with two families of particles. Applied physics. A, Materials science & processing, 2012, 106 (4), pp.915 - 929. ⟨10.1007/s00339-011-6707-3⟩. ⟨hal-00786538⟩
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