Corrosion of copper and silver plates by volcanic gases

Corrosion products that had been formed on copper and silver plates exposed in Miyake Island, where suffered a volcanic eruption in 2000, were analyzed by X-ray techniques to get better understanding of copper and silver corrosion in harsh environment. The exposure experiment was carried out from Se...

Full description

Saved in:
Bibliographic Details
Published in:Corrosion science 2006-11, Vol.48 (11), p.3759-3766
Main Authors: Watanabe, Masamitsu, Hokazono, Akira, Handa, Takao, Ichino, Toshihiro, Kuwaki, Nobuo
Format: Article
Language:English
Subjects:
A. Copper
A. Silver
Applied sciences
B. X-ray fluorescence analysis (XRF)
B. XRD
C. Atmospheric corrosion
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Corrosion products that had been formed on copper and silver plates exposed in Miyake Island, where suffered a volcanic eruption in 2000, were analyzed by X-ray techniques to get better understanding of copper and silver corrosion in harsh environment. The exposure experiment was carried out from September 2004 to April 2005. Many kinds of patina were found on copper such as cuprite (Cu 2O), posnjakite (Cu 4SO 4(OH) 6 · H 2O), brochantite (Cu 4SO 4(OH) 6), antlerite (Cu 3SO 4(OH) 4), and geerite (Cu 8S 5). For silver, silver chloride (AgCl) and silver sulfide (Ag 2S) were formed. Although the volcanic activity had greatly subsided, the atmospheric corrosion of copper and silver plates exposed on Miyake Island was mainly affected by volcanic gases, wet–dry cycles in the environment, and sea-salt aerosols.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2005.12.009