Application of Laser Ablation to Cleaning Process of the Corrosion Chloride Patina Formed on Bronze Surfaces in Air and Marine Water  

出　　处：《Journal of Physical Science and Application》2013年第3期135-140,共6页物理科学与应用（英文版）

摘　　要：We present the results of laser ablations cleanness process on bronzes covered by a chloride patina in two different media： marine water and air. The bronze chloride disease was obtained treating commercial bronzes with HCI 37%, for 190 h. X-ray photoelectron spectroscopy and optical images taken on treated samples show the formation of a CuCIJCu2CI2 patina of about 300 m Laser ablation reduces in both medium the patina thickness at few microns without changing the chemical composition of bronze. X-ray analysis show the most effectiveness of ablation procedure in marine water where its only effect is the patina reduction without introducing changes in bronze chemical composition. Ablation in air, instead, reduces the patina but favors the adsorption of air oxygen and carbon on sample surfaces and a progressive ＂carbonization＂ of samples.

关 键 词：Bronze disease laser ablation marine sites. 

分 类 号：O536[理学—等离子体物理] TQ153.15[理学—物理]