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X-ray Powder Diffraction in Conservation Science: Towards Routine Crystal Structure Determination of Corrosion Products on Heritage Art Objects
Published on: June 8, 2016
White spots on Smoke rings by Bruce Nauman: a case study on contemporary art conservation using microanalytical
Ana Cardeira Mafalda1, Rodrigo Bettencourt da Câmara2, Patrick Strzelec3
11Faculdade de Belas-Artes,da Universidade de Lisboa,Largo da Academia Nacional de Belas-Artes,1249-058 Lisboa,Portugal.
Abstract:
The artwork "Smoke Rings: Two Concentric Tunnels, Non-Communicating" by Bruce Nauman represents a case study of corrosion of a black patina-coated Al-alloy contemporary artwork. The main concern over this artwork was the widespread presence of white spots on its surface. Alloy substrate, patina, and white spots were characterized by means of energy-dispersive X-ray fluorescence and scanning electron microscopy with energy-dispersive spectroscopy. Alloy substrate was identified as an aluminum alloy 6,000 series Al-Si-Mg. Patina's identified composition confirmed the documentation provided by the atelier. Concerning the white spots, zircon particles were found on patina surface as external elements.
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