Laser Cleaning Studies of Hard Insoluble Aluminosilicate Crusts on Minoan (LM IIIC) Pottery
The main objective of this study is to investigate the feasibility of laser cleaning methodologies for the removal of insoluble aluminosilicate crusts from ceramic surfaces excavated from Late Minoan IIIC sites in eastern Crete. Laser cleaning tests involved the use of various laser systems with different wavelengths (1064 and 355 nm), pulse duration (7 ns and 120 µm), energy density values (0.3 to 1.6 J/cm2) and cleaning methodologies (e.g. combination of wavelengths, water assisted laser cleaning etc.). The results from the laser-cleaning methodologies employed were evaluated and compared against those obtained from application of mechanical and of chemical means for encrustation removal.
KeywordsSurface Slip Laser Induce Breakdown Spectroscopy Ceramic Surface Chemical Cleaning Thick Crust
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