Initial Stage Corrosion Behavior and Mechanism of Copper Exposed to Ozone

YAN Ying; ZHANG Ting; ZHOU Hao; WU Lai-ming; LU Dan-dan; DENG Li-juan; CAI Lan-kun

Corrosion & Protection > 2012 > 33(10): 845-848.

YAN Ying, ZHANG Ting, ZHOU Hao, WU Lai-ming, LU Dan-dan, DENG Li-juan, CAI Lan-kun. Initial Stage Corrosion Behavior and Mechanism of Copper Exposed to Ozone[J]. Corrosion & Protection, 2012, 33(10): 845-848.

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Initial Stage Corrosion Behavior and Mechanism of Copper Exposed to Ozone

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Received Date: October 27, 2011

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The corrosion behavior and mechanism of copper exposed to ozone at initial stage were investigated by using a quartz crystal microbalance(QCM). Through monitoring the frequency changes of copper-electrodeposited quartz crystal at different ozone concentrations and different temperatures, the corrosion kinetic curves were obtained. According to these curves, the corrosion rate and other related parameters were calculated and the corrosion mechanism involved was put forward. The results showed that, under specified corrosion conditions, the frequency change of the copper-electrodeposited quartz crystal decreased with the time. This indicated that the copper on the quartz crystal surface reacted with the corrosion medium to form corrosion products, which led to an increase of the surface mass of the quartz crystal and a decrease in the frequency. Ozone concentration and temperature can exercise an influence on the corrosion behavior of copper in various degrees. With the increase of ozone concentration and reaction temperature, the corrosion rate of copper gradually increased.
- ozone,
- atmospheric corrosion,
- copper,
- QCM

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