Plasma-liquid technologies for treatment of archaeological artifacts

Plasma-liquid technologies at atmospheric pressure provide a wide range of possibilities for applications. One of them, the treatment of archaeologica l artifacts, is presented in this paper. The effects of discharges between a metal electrode and a solution surface and/or an interaction of hollow ca thode plasma jet, plasma pencil, with liquid on the corroded surface of bro nze and glass artifacts were studied. It was compared with standard low pre ssure plasma techniques and with the effects of electrolysis. Original and treated objects were characterized by means of scanning electron microscope (SEM) with energy dispersive analyser used for the spot elemental analyses .