Browsing by Author "Principi, Giovanni"
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- ItemCEMS study of tin in the hot end coatings of glass containers(Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft, 2000) Geotti-Bianchini, Franco; Preo, Martina; Principi, Giovanni; Maddalena, AmedeoTin oxide coatings are applied to glass containers as adhesion promoters for the organic lubricants. Here, room temperature conversion electron Mössbauer spectroscopy (CEMS) is used to analyse a range of tin oxide coated containers. Readable CEMS curves could be obtained even for the thinnest (30 CTU or about 6 nm) coatings. The hyperfine parameters calculated from the spectral curves show that tin is tetravalent in crystalline form with a preferential grain orientation, which is reduced on annealing. The presence of tin in other oxidation states and dissolved in the matrix was excluded.