Corrosion protection of aluminum pigments by sol-gel coatings |
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| Authors: | Ralf Supplit |
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| Affiliation: | Institute of Materials Chemistry, Vienna University of Technology, Austria |
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| Abstract: | New sol-gel coatings for the corrosion protection of aluminum pigments were developed. To this end, the pigment particles are first coated with a silica layer by phosphoric acid-catalyzed sol-gel processing of Si(OEt)4, to which either hexadecyltrimethoxysilane or dimethyldimethoxysilane is condensed. The coated pigments have excellent anticorrosive properties in alkaline solutions as well as under boiling water conditions. |
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| Keywords: | A Aluminum C Oxide coatings C Passive films |
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