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izvor podataka: crosbi

Improvement of corrosion stability of patinated bronze (CROSBI ID 161270)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Otmačić Ćurković, Helena ; Kosec, Tadeja ; Andraž, Legat ; Stupnišek-Lisac, Ema Improvement of corrosion stability of patinated bronze // Corrosion engineering, science and technology, 45 (2010), 5; 327-333. doi: 10.1179/147842210X12710800383684

Podaci o odgovornosti

Otmačić Ćurković, Helena ; Kosec, Tadeja ; Andraž, Legat ; Stupnišek-Lisac, Ema

engleski

Improvement of corrosion stability of patinated bronze

Bronze surfaces suffer from corrosion processes if they are exposed outdoors. They are affected by the presence of different aggressive species, the alloy composition and surface preparation. Bronze can be exposed outdoors non-protected, or can be pre-treated in different ways. Artists use chemical patinations in order to achieve visual effects. In the present study, different finishes were tested on three different patinas: green nitrate, green chloride and an electrochemically prepared patina. The tested finishes were: imidazole and benzotriazole type inhibitors in either ethanol or Paraloid B44, and Carnauba wax as a representative of waxes. The effectiveness of the applied finishes was examined by electrochemical impedance spectroscopy in a solution simulating urban acid rain. Ageing experiments were performed in a climatic chamber and a salt spray chamber in order to combine different exposure conditions, the presence of sulphur dioxide, high humidity and a mist of chloride ions. After immersion in an urban acid rain solution, acidified to pH 5, the different patinas were investigated by SEM/EDX and Raman spectroscopy.

bronze ; patina ; benzotriazole ; tolyl metyl imidazole ; EIS ; Raman spectroscopy

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Podaci o izdanju

45 (5)

2010.

327-333

objavljeno

1478-422X

1743-2782

10.1179/147842210X12710800383684

Povezanost rada

Kemijsko inženjerstvo

Poveznice
Indeksiranost