Characterisation of corrosion products on copper-based artefacts: potential of MA-XRF measurementsties of MA-XRF measurement

Authors

  • Elisabetta Di Francia Politecnico di Torino, Corso Duca degli Abruzzi 24 – 10129, Turin, Italy
  • Sabrina Grassini Politecnico di Torino, Corso Duca degli Abruzzi 24 – 10129, Turin, Italy
  • Giovanni Ettore Gigante La Sapienza Università di Roma, Via Antonio Scarpa 14/16 – 00161, Rome, Italy http://orcid.org/0000-0001-5943-9366
  • Stefano Ridolfi Ars Mensurae, Via Vincenzo Comparini 101 – 00188, Rome, Italy
  • Sergio Augusto Barcellos Lins La Sapienza Università di Roma, Via Antonio Scarpa 14/16 – 00161, Rome, Italy Surface Analysis Laboratory INFN Roma Tre, Via della Vasca Navale 84 – 00146, Rome, Italy http://orcid.org/0000-0002-8177-9575

DOI:

https://doi.org/10.21014/acta_imeko.v10i1.859

Abstract

The use of macro-X-ray fluorescence (MA-XRF) scanners is now widespread in cultural heritage applications. However, its use for the characterisation of metallic works of art is still limited. In this study, a novel portable MA-XRF scanner prototype was tested on artificially corroded copper samples to assess its analytical capabilities on corroded metals, yielding information on the spatial distribution of the corrosion products grown on the metal’s surface. A multi-analytical approach was used to thoroughly characterise the copper samples and compare the obtained results to verify the reliability of the MA-XRF data. The prototype was able to obtain distribution maps of different elements, such as sulphur and chlorine, which can be directly correlated to different corrosion products. With the use of imaging filtering techniques, it was possible to investigate the stratification of the corrosion product layers and observe gradients in the distribution of certain elements.

Downloads

Additional Files

Published

2021-03-31

Issue

Vol. 10 No. 1 (2021)

Section

Research Papers

License

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the CC BY 4.0, Creative Commons Attribution 4.0 International License.

Users are free to

  • share, i.e. copy and redistribute the material in any medium or format for any purpose, even commercially;
  • adapt, i.e. remix, transform, and build upon the material for any purpose, even commercially.

At the same time, the user must give appropriate credit, provide a link to the license, and indicate if changes were made.
Additional information about the license can be found at: https://creativecommons.org/licenses/by/4.0/.

Authors are

  • able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).