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Pregled bibliografske jedinice broj: 715197

Protection of patinas on various bronzes by different types of inhibitors


Kosec, Tadeja; Marušić, Katarina; Ropret, Polonca; Otmačić Ćurković, Helena
Protection of patinas on various bronzes by different types of inhibitors // EuroCorr 2014 Proceedings
Pisa, Italija, 2014. (predavanje, nije recenziran, sažetak, znanstveni)


CROSBI ID: 715197 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Protection of patinas on various bronzes by different types of inhibitors

Autori
Kosec, Tadeja ; Marušić, Katarina ; Ropret, Polonca ; Otmačić Ćurković, Helena

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
EuroCorr 2014 Proceedings / - , 2014

Skup
EuroCorr 2014

Mjesto i datum
Pisa, Italija, 08-12.09.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
corrosion; bronze; patina; self-assembling monolayers

Sažetak
Numerous cultural and historical artefacts are made of bronze. In humid air, bronze is spontaneously covered by oxide films, called patina. However, in urban atmospheres the aggressive air species concentrate in acid rain which dissolves patina and the bronze itself. This leads to enhanced deterioration of bronze artefacts and formation of secondary corrosion product. In protection of historical and cultural artefacts, only methods that do not change the visual appearance of the artefact itself can be applied. Such methods include protection of bare metal as well as the patina covering it. One of the possible methods is the use of corrosion inhibitors. Recent research has shown that imidazole based inhibitors can be succesfully used to protect patinated bronze. Aim of this study is to investigate the use of imidazole and benzotriazole type inhibitors (TMI, BTAH) in protection of different types of bronzes, namely CuSnZn bronze, CuSnZnPb bronze and CuSnSi bronze. Bronzes that will be studied, will be bare or covered by two types of patinas: sulphide brown type of patina and electrochemically formed patina that simulates naturally formed patina on bronze exposed to atmosphere. Morphology and structure of the patinas will be determined using SEM/EDX and Raman spectroscopy. Then both chemical and electrochemical patina will be studied in environments that simulate urban environments. The protection properties of corrosion inhibitors will be studied on different bronzes and on differently patinated bronze samples by the use of electrochemical techniques, such as potentiodynamic measurements and electrochemical impedance spectroscopy in simulated urban rain. SEM /EDX analysis as well as Raman spectroscopy will be used to evaluate the differently formed patinas before and after the electrochemical experiments. The combination of electrochemical and spectroscopic techniques will enable the study of inhibition mechanisms and inhibition efficiency of the chosen protection method.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekti:
125-1252973-2572 - Novi netoksični inhibitori korozije metala (Otmačić Ćurković, Helena, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb


Citiraj ovu publikaciju:

Kosec, Tadeja; Marušić, Katarina; Ropret, Polonca; Otmačić Ćurković, Helena
Protection of patinas on various bronzes by different types of inhibitors // EuroCorr 2014 Proceedings
Pisa, Italija, 2014. (predavanje, nije recenziran, sažetak, znanstveni)
Kosec, T., Marušić, K., Ropret, P. & Otmačić Ćurković, H. (2014) Protection of patinas on various bronzes by different types of inhibitors. U: EuroCorr 2014 Proceedings.
@article{article, year = {2014}, keywords = {corrosion, bronze, patina, self-assembling monolayers}, title = {Protection of patinas on various bronzes by different types of inhibitors}, keyword = {corrosion, bronze, patina, self-assembling monolayers}, publisherplace = {Pisa, Italija} }
@article{article, year = {2014}, keywords = {corrosion, bronze, patina, self-assembling monolayers}, title = {Protection of patinas on various bronzes by different types of inhibitors}, keyword = {corrosion, bronze, patina, self-assembling monolayers}, publisherplace = {Pisa, Italija} }




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