Effect of Carbon Dioxide on Sodium Chloride-Induced Atmospheric Corrosion of Copper

Chen, Zhuo Yuan; Persson, Daniel Pergament; Samie, Farid; Zakipour, S.; Leygraf, Christofer

doi:10.1149/1.2098327

Cited by 52 publications

(25 citation statements)

References 25 publications

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“…9,20 With lower CO 2 , secondary spreading of NaCl is much * Electrochemical Society Fellow. z E-mail: frankel.10@osu.edu more significant 20 and formation of CuCl is impeded.…”

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confidence: 99%

Atmospheric Corrosion of Cu during Constant Deposition of NaCl

Lin

Frankel

2013

J. Electrochem. Soc.

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A laboratory environment chamber with a constant deposition rate of NaCl was built. With this chamber, the corrosion behavior of Cu during constant NaCl deposition was investigated with different CO 2 concentrations and ultraviolet (UV) illumination. XRD and coulometric reduction techniques were used to identify and quantify the corrosion products. An Na 2 CO 3 solution was found to be more suitable than KCl solutions for quantification of Cu corrosion products. Cuprite was always the dominant corrosion product during exposure of Cu in various environments. UV illumination accelerated formation of cuprite significantly but had very little effect on formation of cupric corrosion product. CO 2 in the environment was important in determination of cupric corrosion products. With 350 ppm CO 2 , paratacamite was the dominant product, while tenorite was dominant with <1 ppm CO 2 . This explains why tenorite is not a common cupric corrosion product in the field. Pitting corrosion was always the dominant form of corrosion at the beginning of the exposure period but uniform corrosion dominated at later times. The new environment chamber enables the determination of Cu corrosion kinetics in the lab, especially the formation of paratacamite, which provides insight into Cu atmospheric corrosion in the field. Atmospheric corrosion of Cu in the field and in laboratory chambers has been widely studied because of the use of Cu in electronics and architecture.1-6 NaCl has a strong accelerating influence on Cu corrosion in the field, especially in marine environments. 5,6 The effects of NaCl have also been investigated in laboratory-based atmospheric corrosion studies.7-12 NaCl has been shown to accelerate the breakdown of the naturally formed and protective copper oxide by the formation of copper chloride complexes, 11 especially at high relative humidity (RH). When the RH is higher than the critical relative humidity of NaCl, 75%, 13 deposition of 4 μg /cm 2 of NaCl before exposure increases the Cu corrosion rate of Cu by about one order of magnitude during 10 days exposure. 8 NaCl has also been shown to be critical for formation of Cu 2 (OH) 3 Cl, a common corrosion product found in marine environments. 3 In the presence of NaCl, cuprite (Cu 2 O) can be readily oxidized to atacamite or paratacamite, which are isomers of Cu 2 (OH) 3 Cl.12 However, because of difficulties generating a constant deposition rate of NaCl during lab exposure, there is a lack of information on the kinetics of Cu 2 (OH) 3 Cl formation and how Cu 2 (OH) 3 Cl affects the Cu corrosion rate.Methods used to introduce NaCl onto a surface for laboratory study of atmospheric corrosion of Cu and other metals include deposition of NaCl particles before exposure by fast evaporation of ethanolic NaCl solution, 8,11 thermophoretic deposition 14,15 or printing. 16 A disadvantage of prior deposition for the study of Cu corrosion kinetics is that the available NaCl in the environment decreases with time due to formation of Cu 2 (OH) 3 Cl or CuCl during exposure. Furthe...

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“…9,20 With lower CO 2 , secondary spreading of NaCl is much * Electrochemical Society Fellow. z E-mail: frankel.10@osu.edu more significant 20 and formation of CuCl is impeded.…”

mentioning

confidence: 99%

Atmospheric Corrosion of Cu during Constant Deposition of NaCl

Lin

Frankel

2013

J. Electrochem. Soc.

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“…A number of studies have been conducted to investigate the corrosion of metal surfaces caused by deliquescent salt particles [2][3][4][5][6][7][8][9] or manually deposited salt solution droplets. [10][11][12] Neufeld et al 2 studied corrosion initiation from salt particles (D540-120 mm) that formed droplets by deliquescence upon exposure to humid environments.…”

Section: Introductionmentioning

confidence: 99%

“…Wessenrieder et al 5 studied filiform corrosion on pure iron with predeposited NaCl particles, and proposed that filiform corrosion was driven by a differential aeration cell, and propagated by mass transport limited Cl 2 movement towards the filament head. Chen et al [6][7][8][9] studied the effect of NaCl particles, as well as pollutant gases on the atmospheric corrosion of copper. They used either manually deposited, relatively large (D.1 mm) NaCl particles or small NaCl particle clusters (4 mg cm 22 , with single particle size ,10 mm) deposited using a saturated NaCl solution in 99?5% ethanol which was later evaporated.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric corrosion initiation on steel from predeposited NaCl salt particles in high humidity atmospheres

Hihara

2010

Corrosion Engineering, Science and Technology

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Corrosion initiation on steel from predeposited NaCl particles was observed in situ using an optical microscope. Corrosion did not initiate from small droplets (D,y45 mm) formed by the deliquescence of predeposited NaCl particles upon exposing to high humidity (RH.80%). Corrosion occurred under larger NaCl droplets and was accompanied by the formation of secondary droplets outside of the perimeter of the initial droplets. Sometimes, corrosion that initiated from the large NaCl droplets propagated in the form of filiform corrosion. Elemental mapping using energy dispersive X-ray analysis showed that Cl was concentrated at the filament tip, while Na migrated to the outside region of the secondary droplets. Under large NaCl droplets, there was evidence that corrosion initiated from slag based inclusions.

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“…These spectra are dominated by modes of the paratacamite (Cu 2 (OH) 3 Cl) (Figs. 2B and 4B) [18,19]. In the high wave number FT- The CuCl ¡ 2 ions can be oxidized to Cu 2 (OH) 3 Cl [21,22].…”

Section: Resultsmentioning

confidence: 99%

Identification of Corrosion Products on Fe and Cu Metals using Spectroscopic Methods

et al. 2018

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In this study, the Fourier-transform infrared absorption and the Raman spectroscopies for analysis of corrosion products formed on the Fe and Cu metal surfaces after deposition in the chloride containing solution, were used. The obtained spectral patterns show that main constituent species of the corrosion products for Fe metal sample is lepidocrocite, while in the case of Cu surface there is formed mainly paratacamite. The obtained results confirm that application of vibrational spectroscopic methods is precise tool for identification and analysis of the corrosion products.

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Effect of Carbon Dioxide on Sodium Chloride-Induced Atmospheric Corrosion of Copper

Cited by 52 publications

References 25 publications

Atmospheric Corrosion of Cu during Constant Deposition of NaCl

Atmospheric Corrosion of Cu during Constant Deposition of NaCl

Atmospheric corrosion initiation on steel from predeposited NaCl salt particles in high humidity atmospheres

Identification of Corrosion Products on Fe and Cu Metals using Spectroscopic Methods

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