ABN 70 592 297 967 Electrochemical （荷兰银行70 592 297 967电化学）.pdfVIP

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ABN 70 592 297 967 Electrochemical （荷兰银行70 592 297 967电化学）.pdf

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ABN 70 592 297 967 Electrochemical （荷兰银行70 592 297 967电化学）

Proceedings of Metal 2004 National Museum of Australia Canberra ACT 4–8 October 2004 ABN 70 592 297 967 Electrochemical characterisation of patina protectiveness evolution on outdoor bronze sculptures a b c M. A. Crespo , G. P. Cicileo , B. M. Rosales a Area de Conservación-Restauración, Secretaría de Cultura G.C.B.A. Av. de Mayo 575 6º Piso, Buenos Aires, Argentina. cloclo@.ar b CITEFA-DEICOR, Juan Bautista de Lasalle 4397, (B1603ALO) Villa Martelli, Argentina. c CIDEPINT, Av.52 entre 121 y 122, (B1900AYB) La Plata, Argentina. Abstract A modern aesthetic criterion focuses on the visual effect produced by the original patinas colour transformations. The La Recoleta cemetery is one of the sites where numerous bronze sculptures, recognised by their aesthetic and historical value, can be found. Three works in this cemetery were selected for this study. The aim of this work was to elaborate an intervention criterion based on the present state of patinas by means of non-destructive in situ analyses. On different coloured areas the electrochemical behaviour and chemical composition of patinas were determined. Our interdisciplinary intervention policy considers the aesthetic intention of the sculptor and the transformation of the original patina since the sculpture installation to its present reading, in the frame of a scientific and historical study. Keywords : patina, electrochemical potential, protectiveness, in situ, bronze, monuments. 1. Introduction The public space of Buenos Aires City has numerous sculpture repositories made by European and Argentine sculptors, cemeteries among them. That of La Re