Nanostructured Float-Glasses after Ion-exchange in Melts Containing Silver or Copper Ions

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abstract

Ion-exchange technique is widely used for obtaining coloured glasses. In this research we treated float glass samples in vapour and melts of copper and silver containing mixtures. We have studied the influence of experimental conditions (composition of the melt, temperature and processing time, additional treatment) on the size of colloidal nanoparticles, the optical characteristics and the achieving a variety of colour shades of the ion-exchange glasses. We have clarified the role and influence of the presence of tin ions in the surface layer of the glass matrix on the transmission of the glasses, the mechanism for the formation of the colour layer, the depth penetration and the size of colloidal nanoparticles. The optical properties of the nanostructured glasses were investigated by UV-VIS spectrophotometer. The structural and microstructural properties in the glass matrix, showing the formation of nanocrystalline particles have been studied using Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFT) and Scaning electron microscopy (SEM). The particle size and the roughness of the background of the structure have been determined by AFM.

authors

Dimitrova, Mariela T.; Ivanova, Yordanka Y.; Dimitriev, Yanko B.; Salvado, Isabel M. Miranda & Fernandes, M. Helena F. V.

our authors

foto Isabel Margarida Miranda Salvado

Isabel Margarida Miranda Salvado

Associate Professor
foto Maria Helena Figueira Vaz Fernandes

Maria Helena Figueira Vaz Fernandes

Associate Professor

Groups

5 - Biomedical and Biomimetic Materials

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Publication Details

type
Journal Article
year
2013
journal
International Journal of Materials and Chemistry
volume
3
digital object identifier
10.5923/s.ijmc.201303.05

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