Laser-cleaning effects induced on different types of bronze archaeological corrosion products: chemical-physical surface characterisation

Autor: Emma Paola Maria Virginia Angelini, Delphine Neff, Elisabetta Di Francia, Ruth Lahoz, Tilde de Caro, Sabrina Grassini
Přispěvatelé: European Commission, Consejo Superior de Investigaciones Científicas (España), Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino = Polytechnic of Turin (Polito), Instituto de Nanociencia y Materiales de Aragón (INMA), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Universidad de Zaragossa, Laboratoire Archéomatériaux et Prévision de l'Altération (LAPA - UMR 3685), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Istituto per lo Studio dei Materiali Nanostrutturati, National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), the CSIC Interdisciplinary Thematic Platform ‘Open Heritage: Research and Society (PTI-PAI)
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
Applied Surface Science
Applied Surface Science, 2021, 573, pp.150884. ⟨10.1016/j.apsusc.2021.150884⟩
ISSN: 0169-4332
Popis: Archaeological bronzes (Cu-Sn alloys) might be different in composition and these variabilities lead to a different interaction with the environment and, if they were buried, with several chemical elements present in soils. Generally, the result is the presence of complex corrosion products layers on the Cu-based artefacts which might be protective or reactive (and so dangerous) for the artefacts preservation itself. Moreover, the corrosion products can also be unwanted because hide the drawings present/imprinted on the original metal surfaces. So, for several reasons, it can be necessary to remove the unwanted corrosion products: laser-cleaning procedure is one of the most selective cleaning technique used. The main goal of this work was to assess possible laser-cleaning induced surface effects on different archaeological bronzes corrosion products structures through a systematic and multi-technique compositional study. Chemical-physical characterisations were performed on laser-cleaned and non-cleaned types of Cu-Sn archaeological corrosion products structures. The results show the efficiency and the low-invasiveness of the treatment.
This work was partially financial supported by the European Federation of Corrosion (EFC) [EUROCORR Young Scientist Grant 2016]. Dr Lahoz wishes to acknowledge professional support of the CSIC Interdisciplinary Thematic Platform ‘Open Heritage: Research and Society (PTI-PAIS)’.
Databáze: OpenAIRE