期刊
ELECTROCHIMICA ACTA
卷 202, 期 -, 页码 325-332出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.12.142
关键词
Melting Gels; Sol-Gel; Coatings; 304 Stainless Steel; corrosion protection
资金
- NSF -DMR Award [1313544]
- Materials World Network, SusChEM: Hybrid Sol-Gel Route to Chromate-free Anticorrosive Coating
- Ministerio de Economia y Competitividad, Spain [PCIN-2013-030]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1313544] Funding Source: National Science Foundation
Methyl-substituted melting gels were used to coat AISI 304 stainless steel substrates. Crack-free coatings up to 1 mm in thickness were obtained. SEM micrographs of cross-sections confirm good adhesion to the surface. Samples were subjected to structural characterization using FT-IR, and Raman spectroscopy. Mechanical properties were investigated by micro-scratch tests. Electrochemical analyses (anodic polarization and electrochemical impedance spectroscopy) were performed in 3.5% NaCl solutions. Electrochemical tests show excellent performance of the coatings against corrosion with no sign of degradation after several months of immersion. (C) 2015 Elsevier Ltd. All rights reserved.
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