The corrosion behaviour of experimentally prepared copper-reinforced carbon electrodes in dilute hydrochloric acid is investigated. The electrodes are not only directly attacked by the acid, but they are also subjected to galvanic corrosion. The baking temperature and time are the most crucial processing variables. A minimum in the corrosion rate is always achieved when the electrodes are baked at 400 °C for 1.5 h, the level depending on the copper content. The corrosion resistance increases progressively with the baking temperature as long as the baking time is less than 1.5 h. Baking for more than 1.5 h results in increasing corrosion rate. The presence of copper increases the corrosion resistance of the prepared electrodes.
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Zahran, R.R. Corrosion behaviour of copper-reinforced carbon electrodes in dilute hydrochloric acid solutions. J Mater Sci 26, 5693–5697 (1991). https://doi.org/10.1007/BF01130103
- Acid Solution
- Hydrochloric Acid
- Corrosion Resistance