Studio preliminare sulla produzione e il degrado di vetri potassici e sodici come modelli di vetrate artistiche e di vetri industriali in ambiente confinato

This study concerns the alteration of glass in confined environment , characteristic of the industrial glass containers stored inpallets before filling and of the artistic stained-glass windows protected by a glazing system . In order to better understandin the different influence of the parameters of glass alteration (chemical durability, temperature, relative humidity and exposition time), an ex-novo low-expensive system ha sbeen designed and realized for the reproduction of a confined environment and for the measure and control of relative humidity and temperature. Soda-lime silica glass and potash-lime silica glass samples have been produced as models of glass containers and medieval artistic stained glass windows repectively. Outdoor and indoor (in stove) expositions of the glass samples have been performed and the weathering of the samples has been investigated by different analytical techniques, such as optical microscopy, SEM-EDS and Micro-IRRS.