Phase transitions and moisture adsorption property of Particulate Matter deposed on surfaces can determine decay process. Number of dissolution-crystallization cycles and time of wetness are very important decay-indicators. Deliquescence and crystallization of complex mixtures show an hysteresis behavior that depends on the chemical composition. In this work DRH and CRH experimental measurement of PM are used to compute decay-indicators for heritage materials. In this way the derived decay-indicators are representative both of a specific climate and pollution pattern.
Casati, M., Rovelli, G., D'Angelo, L., Ferrero, L., Perrone, M., Bolzacchini, E. (2014). Experimental Measure Of Drh And Crh Of Particulate Matter For Cultural Heritage Applications. Intervento presentato a: VIII Congresso Nazionale di Archeometria Scienze e Beni Culturali: stato dell’arte e prospettive, Bologna.
Experimental Measure Of Drh And Crh Of Particulate Matter For Cultural Heritage Applications
CASATI, MARCO
;ROVELLI, GRAZIA;D'ANGELO, LUCA;FERRERO, LUCA;PERRONE, MARIA GRAZIA;BOLZACCHINI, EZIOUltimo
2014
Abstract
Phase transitions and moisture adsorption property of Particulate Matter deposed on surfaces can determine decay process. Number of dissolution-crystallization cycles and time of wetness are very important decay-indicators. Deliquescence and crystallization of complex mixtures show an hysteresis behavior that depends on the chemical composition. In this work DRH and CRH experimental measurement of PM are used to compute decay-indicators for heritage materials. In this way the derived decay-indicators are representative both of a specific climate and pollution pattern.
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