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Characterization of artificially patinated layers on artistic bronze exposed to laboratory SO2 contamination

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Abstract

Artificially patinated artistic bronze was exposed to the action of 0.10 and 12.68 ppm SO2 contamination in the laboratory at 100% relative humidity. The surface layers were characterized using electrochemical, atomic absorption, X-ray powder diffraction techniques and Fourier transform–infrared spectrometry. Thermal and calorimetric studies were also performed. Some of the compounds identified were cuprite (Cu2O), digenite (Cu1.8S), yarrowite (Cu9S8), chalcocite (Cu2S), brochantite (Cu4(OH)6SO4), bonattite (CuSO4·3H2O) and Sn2S3.

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Authors and Affiliations

  1. Centro Nacional de Investigaciones Metalurgicas, CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain

    J. M BASTIDAS, A LOPEZ-DELGADO & F. A LOPEZ

  2. Facultad de Bellas Artes, Universidad Complutense, El Greco 2, 28040, Madrid, Spain

    M. P ALONSO

Authors
  1. J. M BASTIDAS
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  2. A LOPEZ-DELGADO
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  3. F. A LOPEZ
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  4. M. P ALONSO
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BASTIDAS, J.M., LOPEZ-DELGADO, A., LOPEZ, F.A. et al. Characterization of artificially patinated layers on artistic bronze exposed to laboratory SO2 contamination. Journal of Materials Science 32, 129–133 (1997). https://doi.org/10.1023/A:1018535401657

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  • DOI: https://doi.org/10.1023/A:1018535401657

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