Simulating sulfuric acid dew point corrosion of enamels with different contents of silica
Source abstract
Abstract
Abstract Corrosion of three bulk enamels with different silica contents in sulfuric acid was studied. Catastrophic corrosion happened for enamel with 54.6 wt% silica. Its weight loss reached 36.90 mg/cm 2 after seven-day corrosion. A porous leached layer with tremendous cracks formed at surface during corrosion, which favored acid invading and further corrosion. On the contrary, the durability of enamels with silica content over 60 wt% was guaranteed by their highly connected silicate network and a developed dense gel layer that clogged corrosion pits. Their weight losses were less than 0.2 mg/cm 2 after seven-day corrosion.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Metal Extraction and Bioleaching · Engineering and Environmental Studies
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