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Proceedings Paper

Using lasers for cleaning ceramic and plaster patrimonial objects
Author(s): Nathalie Huet; Eric Tanguy; Armand Vincotte; Vassilis Zafiropulos
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Paper Abstract

Traditional cleaning techniques (sandblasting, chemical, ...) turn out to be ineffective or damaging on some ceramics and plaster objects. It's especially true on outdoor ceramics covered with black crust or indoor biscuits wares and plasters exposed to dust and repeated handling. The use of lasers to remove dirt, such as for stone, has then been considered. This paper study the behavior of these materials under the impact of different type of lasers irradiation (Nd:YAG first and third harmonic, excimer,...). According to the type of dirt and underlying material, the effectiveness of cleaning depends on the laser wavelength and its energy density. The results are satisfactory with no damage and no coloration change on plaster cleaning by Nd:YAG third harmonic.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524489
Show Author Affiliations
Nathalie Huet, Arc' Antique (France)
Eric Tanguy, Univ. de Nantes (France)
Armand Vincotte, Arc' Antique (France)
Vassilis Zafiropulos, Foundation for Research and Technology-Hellas (Greece)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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