Title :
Cleaning of 19th century daguerreotypes by means of atmospheric pressure cold plasma jet
Author :
Boselli, Marco ; Chiavari, Cristina ; Colombo, Vittorio ; Ghedini, Emanuele ; Gherardi, Matteo ; Martini, Carla ; Rotundo, Fabio ; Sanibondi, Paolo
Author_Institution :
Dept. of Ind. Eng. (D.I.N.), Alma Mater Studiorum-Univ. di Bologna, Bologna, Italy
Abstract :
Summary form only given. Daguerreotypes represent the first practical form of photographs, particularly in vogue between 1840 and 1860, before becoming outdated due to the development of alternative and faster techniques. In daguerreotypes, the image results from the distribution of silver/mercury microcrystals of varying size and density on a silver-coated copper sheet. Through years, several 19th century daguerreotypes have suffered several corrosion phenomena, which have greatly reduced their historic and artistic value.
Keywords :
corrosion protection; mercury (metal); photography; plasma jets; plasma materials processing; silver; surface cleaning; 19th century daguerreotype; Ag; CuAg; Hg; artistic value; atmospheric pressure cold plasma jet; corrosion phenomena; historic value; microcrystal density; microcrystal size; photograph first practical form; pressure 1 atm; silver-coated copper sheet; silver/mercury microcrystal distribution; Chemicals; Cleaning; Corrosion; Plasmas; Silver; Solvents; Surface treatment;
Conference_Titel :
Plasma Science (ICOPS), 2013 Abstracts IEEE International Conference on
Conference_Location :
San Francisco, CA
DOI :
10.1109/PLASMA.2013.6634822
