CHARACTERIZATION OF ARTIFICIALLY PATINATED LAYERS ON ARTISTIC BRONZE EXPOSED TO LABORATORY SO2 CONTAMINATION

Authors
BASTIDAS JM LOPEZDELGADO A LOPEZ FA ALONSO MP
Citation
Jm. Bastidas et al., CHARACTERIZATION OF ARTIFICIALLY PATINATED LAYERS ON ARTISTIC BRONZE EXPOSED TO LABORATORY SO2 CONTAMINATION, Journal of Materials Science, 32(1), 1997, pp. 129-133
Citations number
21
Categorie Soggetti
Material Science
Journal title
Journal of Materials Science → ACNP
ISSN journal
00222461
Volume
32
Issue
1
Year of publication
1997
Pages
129 - 133
Database
ISI
SICI code
0022-2461(1997)32:1<129:COAPLO>2.0.ZU;2-D
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 tr ansform-infrared spectrometry. Thermal and calorimetric studies were a lso performed. Some of the compounds identified were cuprite (Cu2O), d igenite (Cu1.8S), yarrowite (Cu9S8), chalcocite (Cu2S), brochantite (C u-4(OH)(6)SO4), bonattite (CuSO4 . 3H(2)O) and Sn2S3.