Organic–inorganic hybrid coatings for corrosion protection of 1050 aluminum alloy

Zandi-zand, R.; Ershad‐Langroudi, Amir; Rahimi, Azam

doi:10.1016/j.jnoncrysol.2005.02.022

Cited by 55 publications

(24 citation statements)

References 9 publications

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“…Chromates can act both as anodic and cathodic corrosion preventers, reducing the overall electrochemical activity of the surface; however, chromate usage is being tightly restricted as they are highly toxic and carcinogenic. 15,16 Due to their strong oxidation properties, they have been held responsible for DNA damage 15 and for example, their usage has been banned since 2007 in Europe. As a consequence, phosphate coatings, especially zinc phosphates, have been considered as the most promising alternative conversion coatings.…”

Section: Inorganic Anticorrosive Pretreatment Coatings On Metalsmentioning

confidence: 99%

“…Second, cross-linking agents are added to the solution and third, on applying the substrate, the film is cured through chemical cross-linking between siloxane oligomers. 70,90 The main precursors that have been used in literature are 3-glycidoxypropyl) methyldiethoxysilane (GPTMS) and TMOS 15,16,70,[88][89][90] and the reaction between them in acidic media results in epoxy-functionalized organosilica nanoparticles.…”

Section: Development and P]roperties Of Hybrid Coatings With Snap Promentioning

confidence: 99%

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Anticorrosive interfacial coatings for metallic substrates

Rahimi¹,

Potrekar²,

Dutta³

et al. 2013

Surface Innovations

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The present state-of-the-art in anticorrosive coatings technology is a multistep process where multilayered hybrid coatings are applied on metallic substrates with each layer having certain functionality and properties. These layers are mainly an interfacial layer, such as inorganic phosphate coatings and/or sol-gel hybrid coatings, which are accompanied by a paint/polymer topcoat. While the main characteristic of the polymer topcoat is a "barrier" role to prevent the diffusion of corrosive species to the metal surface, the primer or the first layer in contact with metal surface is of significant importance due to its role in "active" corrosion prevention capability and promotion of strong adhesion between the substrate surface and subsequent layers. In this article, recent developments in processing and functional properties of zinc-phosphate sacrificial primers and sol-gel-based hybrid coatings will be overviewed. Finally, some of the innovative advancements in this area developed by this research group and others will also be discussed.

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Section: Inorganic Anticorrosive Pretreatment Coatings On Metalsmentioning

confidence: 99%

Section: Development and P]roperties Of Hybrid Coatings With Snap Promentioning

confidence: 99%

Anticorrosive interfacial coatings for metallic substrates

Rahimi¹,

Potrekar²,

Dutta³

et al. 2013

Surface Innovations

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“…The most common precursors for the hybrid films preparation include: phenyl-trimethoxysilane (PTMOS), methyltriethisxysilane (MTEOS), 3-glycidoxypropyltrimethoxysilane (GPTMS), trimethoxysilyl-propyl-methacrylate (TSPM), methylmethacrylate (MMA) and methacylic acid (MA) [1][2][3][4][5][6][7][8][9][10], as well as mixtures of organically substituted and unsubstituted Si-alkoxides.…”

Section: Introductionmentioning

confidence: 99%

Hybrid sol-gel silica films with (TiO₂-CeO₂) binary nanopowders

Zaharescu

Nicolescu

Gärtner

et al. 2012

J. Phys.: Conf. Ser.

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“…In particular, Ormosils (organically modified silicon) (R xSi(OR)4-x) synthesised by the sol-gel process [1] have been widely studied for the preparation of hybrid organicinorganic materials for different applications such as separation [2,3], sensing [4,5], surface protection [6,7], and optics [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Structural and Optical Characterisation of an Erbium/Ytterbium Doped Hybrid Material Developed via a Nonhydrolytic Sol-Gel Route

Oubaha

Copperwhite

McDonagh

et al. 2010

SRX Materials Science

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This paper proposes the development and structural characterisation of an Er 3+ /Yb 3+ doped hybrid organic-inorganic material synthesised by a nonhydrolytic sol-gel process. By using a pumping laser diode at 980 nm, a typical Er 3+ luminescence has been recorded in the near infrared region (1.53-1.55 μm). However, the detected fluorescence was particularly weak compared to that generally observed in pure mineral materials, suggesting the occurrence of strong quenching due to multiphonon relaxation processes. To understand this behaviour, structural characterisation of both of the matrix and the local environment of Er 3+ ions were conducted employing infrared spectroscopy, nuclear magnetic resonance, electron paramagnetic resonance, and neutron scattering. These studies showed that the major phenomenon competing with the Er 3+ fluorescence is intimately associated to the strong vibrational modes of the organic species that involve multiphonon relaxation processes, resulting in energy dissipation within the host matrix.

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Organic–inorganic hybrid coatings for corrosion protection of 1050 aluminum alloy

Cited by 55 publications

References 9 publications

Anticorrosive interfacial coatings for metallic substrates

Anticorrosive interfacial coatings for metallic substrates

Hybrid sol-gel silica films with (TiO₂-CeO₂) binary nanopowders

Structural and Optical Characterisation of an Erbium/Ytterbium Doped Hybrid Material Developed via a Nonhydrolytic Sol-Gel Route

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Organic–inorganic hybrid coatings for corrosion protection of 1050 aluminum alloy

Cited by 55 publications

References 9 publications

Anticorrosive interfacial coatings for metallic substrates

Anticorrosive interfacial coatings for metallic substrates

Hybrid sol-gel silica films with (TiO2-CeO2) binary nanopowders

Structural and Optical Characterisation of an Erbium/Ytterbium Doped Hybrid Material Developed via a Nonhydrolytic Sol-Gel Route

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Product

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Hybrid sol-gel silica films with (TiO₂-CeO₂) binary nanopowders