Corrosion of copper in 1 M NaCl under strictly anoxic conditions

Martin Bojinov; Timo Laitinen; Kari Mäkelä; Margit Snellman; Lars Werme

doi:10.1557/PROC-807-459

Corrosion of copper in 1 M NaCl under strictly anoxic conditions

Martin Bojinov, Timo Laitinen, Kari Mäkelä, Margit Snellman, Lars Werme

VTT Technical Research Centre of Finland

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

7 Citations (Scopus)

Abstract

The corrosion of copper in 1 M NaCl has been investigated at room temperature and at 80°C by an on-line resistance probe, solution analysis of dissolved copper and weight loss measurements. At room temperature, corrosion of the copper as indicated by an increase of the probe resistance has been detected during the first 60–80 h of exposure. After the corrosion potential has reached the immunity region of Cu, a decrease in the resistance of the sensor is observed, probably due to redeposition of Cu from the solution. It can be concluded that the corrosion of copper at room temperature virtually stops after 60–80 h due to the anoxic conditions established in the experiments. The similarity in the trends of the corrosion and redox potential during exposure seems to indicate that Cu(II) contained in the native oxide on Cu and/or formed by homogeneous oxidation of Cu(I) during the initial oxic period of exposure acts as a redox-agent determining the chemical conditions in the closed system.

Original language	English
Title of host publication	Scientific Basis for Nuclear Waste Management XXVII
Editors	Virginia M. Oversby, Lars O. Werme
Place of Publication	Warrendale
Publisher	Materials Research Society
Pages	630-635
ISBN (Print)	978-1-61738-390-8
DOIs	https://doi.org/10.1557/PROC-807-459
Publication status	Published - 2004
MoE publication type	A4 Article in a conference publication
Event	Scientific Basis for Nuclear Waste Management XXVII - Kalmar, Sweden Duration: 15 Jun 2003 → 19 Jun 2003

Publication series

Series	MRS Online Proceedings
Volume	807
ISSN	0272-9172

Conference

Conference	Scientific Basis for Nuclear Waste Management XXVII
Country/Territory	Sweden
City	Kalmar
Period	15/06/03 → 19/06/03

Funding

The funding of this work by Posiva Oy, Finland is gratefully acknowledged. Project code: G2SU02009

Keywords

copper
chlorides
corrosion
wire resistance probe sensor

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10.1557/PROC-807-459

Cite this

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title = "Corrosion of copper in 1 M NaCl under strictly anoxic conditions",

abstract = "The corrosion of copper in 1 M NaCl has been investigated at room temperature and at 80°C by an on-line resistance probe, solution analysis of dissolved copper and weight loss measurements. At room temperature, corrosion of the copper as indicated by an increase of the probe resistance has been detected during the first 60–80 h of exposure. After the corrosion potential has reached the immunity region of Cu, a decrease in the resistance of the sensor is observed, probably due to redeposition of Cu from the solution. It can be concluded that the corrosion of copper at room temperature virtually stops after 60–80 h due to the anoxic conditions established in the experiments. The similarity in the trends of the corrosion and redox potential during exposure seems to indicate that Cu(II) contained in the native oxide on Cu and/or formed by homogeneous oxidation of Cu(I) during the initial oxic period of exposure acts as a redox-agent determining the chemical conditions in the closed system.",

keywords = "copper, chlorides, corrosion, wire resistance probe sensor",

author = "Martin Bojinov and Timo Laitinen and Kari M{\"a}kel{\"a} and Margit Snellman and Lars Werme",

year = "2004",

doi = "10.1557/PROC-807-459",

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isbn = "978-1-61738-390-8",

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editor = "Oversby, {Virginia M.} and Werme, {Lars O.}",

booktitle = "Scientific Basis for Nuclear Waste Management XXVII",

address = "United States",

note = "Scientific Basis for Nuclear Waste Management XXVII ; Conference date: 15-06-2003 Through 19-06-2003",

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Bojinov, M, Laitinen, T, Mäkelä, K, Snellman, M & Werme, L 2004, Corrosion of copper in 1 M NaCl under strictly anoxic conditions. in VM Oversby & LO Werme (eds), Scientific Basis for Nuclear Waste Management XXVII. Materials Research Society, Warrendale, MRS Online Proceedings , vol. 807, pp. 630-635, Scientific Basis for Nuclear Waste Management XXVII, Kalmar, Sweden, 15/06/03. https://doi.org/10.1557/PROC-807-459

Corrosion of copper in 1 M NaCl under strictly anoxic conditions. / Bojinov, Martin; Laitinen, Timo; Mäkelä, Kari et al.
Scientific Basis for Nuclear Waste Management XXVII. ed. / Virginia M. Oversby; Lars O. Werme. Warrendale: Materials Research Society, 2004. p. 630-635 (MRS Online Proceedings , Vol. 807).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Corrosion of copper in 1 M NaCl under strictly anoxic conditions

AU - Bojinov, Martin

AU - Laitinen, Timo

AU - Mäkelä, Kari

AU - Snellman, Margit

AU - Werme, Lars

PY - 2004

Y1 - 2004

N2 - The corrosion of copper in 1 M NaCl has been investigated at room temperature and at 80°C by an on-line resistance probe, solution analysis of dissolved copper and weight loss measurements. At room temperature, corrosion of the copper as indicated by an increase of the probe resistance has been detected during the first 60–80 h of exposure. After the corrosion potential has reached the immunity region of Cu, a decrease in the resistance of the sensor is observed, probably due to redeposition of Cu from the solution. It can be concluded that the corrosion of copper at room temperature virtually stops after 60–80 h due to the anoxic conditions established in the experiments. The similarity in the trends of the corrosion and redox potential during exposure seems to indicate that Cu(II) contained in the native oxide on Cu and/or formed by homogeneous oxidation of Cu(I) during the initial oxic period of exposure acts as a redox-agent determining the chemical conditions in the closed system.

AB - The corrosion of copper in 1 M NaCl has been investigated at room temperature and at 80°C by an on-line resistance probe, solution analysis of dissolved copper and weight loss measurements. At room temperature, corrosion of the copper as indicated by an increase of the probe resistance has been detected during the first 60–80 h of exposure. After the corrosion potential has reached the immunity region of Cu, a decrease in the resistance of the sensor is observed, probably due to redeposition of Cu from the solution. It can be concluded that the corrosion of copper at room temperature virtually stops after 60–80 h due to the anoxic conditions established in the experiments. The similarity in the trends of the corrosion and redox potential during exposure seems to indicate that Cu(II) contained in the native oxide on Cu and/or formed by homogeneous oxidation of Cu(I) during the initial oxic period of exposure acts as a redox-agent determining the chemical conditions in the closed system.

KW - copper

KW - chlorides

KW - corrosion

KW - wire resistance probe sensor

U2 - 10.1557/PROC-807-459

DO - 10.1557/PROC-807-459

M3 - Conference article in proceedings

SN - 978-1-61738-390-8

T3 - MRS Online Proceedings

SP - 630

EP - 635

BT - Scientific Basis for Nuclear Waste Management XXVII

A2 - Oversby, Virginia M.

A2 - Werme, Lars O.

PB - Materials Research Society

CY - Warrendale

T2 - Scientific Basis for Nuclear Waste Management XXVII

Y2 - 15 June 2003 through 19 June 2003

ER -

Corrosion of copper in 1 M NaCl under strictly anoxic conditions

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