Autores: Petruskova, V.|Vrabel, P.|Simurka, P.|Sajgalik, P.|Maryska, M.
Fuente: Ceram. silik.
51 (1), 57-66
While cover (milky effect), iridescence and mechanical scratches on the glass surface are consequences of an automatic dishwashing process. Controlled dishwashing conditions were used to study the iridescence and milky effect created on the glass product. Glass surface, cutting cross-section and depth profile measurement of an unwashed and washed glass product at two different glass types were investigated. Measured areas were analysed using optical microscopy, Scanning Electron Microscopy (SEM), Electron Microprobe Analysis (EDX) and Electron Spectroscopy for Chemical Analysis (ESCA). A presence of foreign components eventually their combinations were detected on the outer side of the washed damaged glass surface. Small concentration changes were found on the inner side of washed glasses. Both glass surface and depth profile analyses of corroded glass samples showed increasing concentration of Na, Ba, Ca and Al towards bulk glass. Barium crystal glass containing aluminium was more corrosion resistant.
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