Mathematical model of copper corrosion

Clarelli, Fabrizio; Filippo, Barbara De; Natalini, Roberto

doi:10.1016/j.apm.2014.03.040

Cited by 31 publications

(28 citation statements)

References 26 publications

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“…The formation process of this compound depends on the environment characteristic in which the object is conserved. On the one hand, if it is directly exposed to the atmosphere, Cu and its alloys form a thin corrosion layer on the metal surface through the following oxidation reaction (reaction )

2 normalC normalu prefix+ ½ normalO \to normalC u_{2} normalO

…”

Section: Resultsmentioning

confidence: 99%

“…Brochantite can be considered as a corrosion product resulting from the cuprite transformation when exposed to environments with high relative humidity and the presence of SO 2 according to reaction

2 normalC u_{2} normalO prefix+ normalS O_{2} + 3 H_{2} normalO prefix+ 3 true/ 2 O_{2} \to normalC u_{4} {(O H)}_{6} normalS O_{4}

…”

Section: Resultsmentioning

confidence: 99%

“…On the one hand, if it is directly exposed to the atmosphere, Cu and its alloys form a thin corrosion layer on the metal surface through the following oxidation reaction (reaction (1)). [31] 2Cu þ ½O → Cu 2 O (1)…”

Section: Corrosions Of Copper-based Alloysmentioning

confidence: 99%

“…[30] Brochantite can be considered as a corrosion product resulting from the cuprite transformation when exposed to environments with high relative humidity and the presence of SO 2 according to reaction (5). [31]…”

Section: Corrosions Of Copper-based Alloysmentioning

confidence: 99%

See 3 more Smart Citations

Characterization of archaeometallurgical artefacts by means of portable Raman systems: corrosion mechanisms influenced by marine aerosol

Veneranda

Aramendia

Gómez

et al. 2016

J. Raman Spectrosc.

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This work focuses on the analytical study of eight medieval metallic artefacts discovered during the archaeological excavations of the Ereñozar necropolis (13th century, Basque Country, Spain). As the conservation state of archaeological objects is closely related to the characteristics of the burial environment, chromatographic analysis was performed with the aim of quantifying the soluble salt content of the burial ground. Moreover, portable systems were used for the elemental and molecular characterization of the artefact collection. A hand‐held X‐ray fluorescence spectrometer was used to analyse the alloys constituting the objects. Then, the characterization of the main corrosion phases affecting the artefacts was carried out using two portable Raman systems. Both tools, equipped with different excitation lasers (785 and 532 nm respectively), were used in a complementary way by coupling them with the BAC151B video microscope. Thanks to its dual laser wavelength port, it was possible to sequentially focus with both lasers on the same selected spot. In this way, the sensitivity of each system for the characterization of Fe‐based and Cu‐based corrosion phases was also compared. Furthermore, the information obtained from both chromatographic and spectroscopic techniques allows the modelling of the chemical reactions that led to the formation of the identified degradation products. Copyright © 2016 John Wiley & Sons, Ltd.

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2 normalC normalu prefix+ ½ normalO \to normalC u_{2} normalO

…”

Section: Resultsmentioning

confidence: 99%

2 normalC u_{2} normalO prefix+ normalS O_{2} + 3 H_{2} normalO prefix+ 3 true/ 2 O_{2} \to normalC u_{4} {(O H)}_{6} normalS O_{4}

…”

Section: Resultsmentioning

confidence: 99%

Section: Corrosions Of Copper-based Alloysmentioning

confidence: 99%

Section: Corrosions Of Copper-based Alloysmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of archaeometallurgical artefacts by means of portable Raman systems: corrosion mechanisms influenced by marine aerosol

Veneranda

Aramendia

Gómez

et al. 2016

J. Raman Spectrosc.

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“…When reacted with an oxidizer such as NO 2 or O 3 , and when dissolved in water, the sulphite is converted to a sulphate (Clarelli, De Filippo, & Natalini, 2014;Tidblad et al, 2009).…”

Section: Copper and Bronze Characteristicsmentioning

confidence: 99%

The Effects of Bird Excrements on Copper and Bronze

Balogh¹,

Slížková

Kreislová

2019

RILEM Bookseries

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Analysis of the kinetic growth of an electrochemically formed bronze patina using the layer‐pore resistance model

González-Parra

Bañuelos

Covelo

et al. 2023

Materials & Corrosion

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The growth of patinas on artistic or archeological copper alloys is a determining stage to reproduce similar surface conditions such as corrosion protection of cultural heritage materials. In this work, the kinetic growth and protective properties of the corrosion products layer of a quaternary copper alloy have been characterized using linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), scanning electron microscopy‐EDS, atomic force microscopy, X‐ray diffraction, and Raman spectroscopy. The results of LSV show that the patina formation is a mixed process consisting of dissolution and direct film formation. EIS results show that the kinetic formation modifies the characteristics of the corrosion layer allowing a Warburg‐like diffusive mechanism or the response of a porous oxide layer without diffusive phenomena. The roughness and thickness of the patina enhance with the decrease in the scan rate. The patina is mainly composed of copper and tin corrosion products.

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Mathematical model of copper corrosion

Cited by 31 publications

References 26 publications

Characterization of archaeometallurgical artefacts by means of portable Raman systems: corrosion mechanisms influenced by marine aerosol

Characterization of archaeometallurgical artefacts by means of portable Raman systems: corrosion mechanisms influenced by marine aerosol

The Effects of Bird Excrements on Copper and Bronze

Analysis of the kinetic growth of an electrochemically formed bronze patina using the layer‐pore resistance model

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