20.500.12556/DiRROS-22132 Durable polyacrylic/siloxane-silica coating for the protection of cast AlSi7Mg0.3 alloy against corrosion in chloride solution This study presented a novel corrosion protective coating based on polyacrylic/siloxane-silica (PEHA-SS) deposited on lightweight cast aluminium alloy AlSi7Mg0.3. The synthesis of PEHA-SS comprises organic monomer 2-ethylhexyl acrylate and organically modified silane 3-(trimethoxysilyl)propyl methacrylate as well as an inorganic silane, tetraethyl orthosilicate. The steps during the synthesis process were monitored using real-time infrared spectroscopy. The coating deposited onto the AlSi7Mg0.3 surface was characterised using various techniques, including infrared spectroscopy, 3D contact profilometry, and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. The corrosion resistance of the coated alloy in sodium chloride solutions was evaluated using electrochemical impedance spectroscopy. The accelerated testing of the uncoated and coated sample was performed using the Machu test. This novel, nine micrometres thick PEHA-SS coating achieved durable corrosion (barrier) protection for the AlSi7Mg0.3 alloy in 0.1 M NaCl during the first four months of immersion or under accelerated corrosion conditions in a Machu chamber containing NaCl, acetic acid, and hydrogen peroxide at 37 °C. aluminum alloys corrosion hybrid sol-gel Machu test true false true MDPI Švica Angleški jezik Ni določen © 2023 by the authors. Neznano 2025-04-30 09:13:49 2025-04-30 09:13:50 2025-10-24 03:50:35 0000-00-00 00:00:00 2023 0 0 Nasl. z nasl. zaslona; Opis vira z dne 15. 3. 2023; str. 1-17 iss. 19, [article no.] 3993 Vol. 15 Oct. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-09-01 2023-09-26 2023-10-04 54 2073-4360 10.3390/polym15193993 167160579 https://www.mdpi.com/2073-4360/15/19/3993 1 ac2c75ce-2592-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=32010 RAZ_Rodic_Peter_2023.pdf RAZ_Rodic_Peter_2023.pdf 1 EC6637C590107AB7BC849D7C9C7142F5 4e83f99a1dac0abd11beb036889d63d27f326590fe629bda2bc2f6518f8eb188 166ccb93-2593-11f0-963a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=32011 Institut Jožef Stefan 0 0 0