Advancement of Surface by Applying a Seemingly Simple Sol‐gel Oxide Materials

Krzak, Justyna; Borak, Beata; Łukowiak, Anna; Donesz-Sikorska, Anna; Babiarczuk, Bartosz; Marycz, Krzysztof; Szczurek, Anna

doi:10.1002/9781119314196.ch2

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“…Additionally, inorganic coatings show better wear resistance than pure organic ones, e.g., those containing polymer compounds. Typical inorganic sol-gel coatings for corrosion mitigation are obtained as simple oxides, e.g., zirconium, titania, and silica [ 14 , 16 ]. Apart from SiO 2 protective coatings [ 17 , 18 ], ZrO 2 -based coatings with self-healing properties deserve particular consideration [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Zirconia and Organic Additives on Mechanical and Electrochemical Properties of Silica Sol-Gel Coatings

et al. 2021

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This paper presents the result of the investigation of organically modified silica (ORMOSIL)-zirconia coatings used to enhance their protective properties, namely corrosion and scratch resistance. Two different materials, i.e., SiO2/ZrO2 and SiO2/GPTMS/ZrO2, were synthesized, measured, and analyzed to find the difference in the used organosilane precursor (dimethyldiethoxysilane and (3-glycidoxypropyl)trimethoxysilane, respectively). SiO2/ZrO2 coatings showed higher hardness than SiO2/GPTMS/ZrO2. Moreover, the value of polarization resistance (Rp) for SiO2/GPTMS/ZrO2 coated 316L steel relative to the uncoated one was obtained. It was nearly 84 times higher. The coating delamination was observed with load 16N. Additionally, the corrosion mitigation for 316L coated by SiO2/GPTMS/ZrO2 was observed even after extended exposure to corrosion agents.

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