Siloxane-based thin films for corrosion protection of stainless steel in chloride media

Sérgio Meth; Natali Savchenko; Federico A. Viva; David Starosvetsky; Alec Groysman; Chaim N. Sukenik

doi:10.1007/s10800-011-0291-2

Siloxane-based thin films for corrosion protection of stainless steel in chloride media

Sérgio Meth, Natali Savchenko, Federico A. Viva, David Starosvetsky, Alec Groysman, Chaim N. Sukenik

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The corrosion protection of stainless steel (SS 316L) provided by layers of SiO₂ and by siloxane-anchored self-assembled monolayer (SAMs) was assessed by cyclic voltammetry (CV) and by potentiostatic current transient in sodium chloride media. The SAMs were composed of octadecyltrimethoxysilane anchored onto a thin (1-2 nm) layer of SiO₂. The initial SiO ₂ layer was obtained by treatment with tetraethoxyorthosilicate. Successive layers were added by applying the alkylsiloxane and then oxidatively removed by treatment using a UV-ozone cleaner. Though SAMs have been used as corrosion barriers in other contexts, it is shown that successive cycles of SAM deposition and ablation provide an extended SiO₂ thin-covering layer that protects stainless steel against pitting and general corrosion.

Original language	English
Pages (from-to)	885-890
Number of pages	6
Journal	Journal of Applied Electrochemistry
Volume	41
Issue number	8
DOIs	https://doi.org/10.1007/s10800-011-0291-2
State	Published - Aug 2011

Bibliographical note

Funding Information:
Acknowledgment This work was supported by a Tashtiyot Grant from the Israel Ministry of Science.

Funding

Acknowledgment This work was supported by a Tashtiyot Grant from the Israel Ministry of Science.

Funders	Funder number
Ministry of science and technology, Israel

Keywords

316L stainless steel
Corrosion barrier coatings
Pitting corrosion
Potentiostatic current transient
Self assembled monolayer

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10.1007/s10800-011-0291-2

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title = "Siloxane-based thin films for corrosion protection of stainless steel in chloride media",

abstract = "The corrosion protection of stainless steel (SS 316L) provided by layers of SiO2 and by siloxane-anchored self-assembled monolayer (SAMs) was assessed by cyclic voltammetry (CV) and by potentiostatic current transient in sodium chloride media. The SAMs were composed of octadecyltrimethoxysilane anchored onto a thin (1-2 nm) layer of SiO2. The initial SiO 2 layer was obtained by treatment with tetraethoxyorthosilicate. Successive layers were added by applying the alkylsiloxane and then oxidatively removed by treatment using a UV-ozone cleaner. Though SAMs have been used as corrosion barriers in other contexts, it is shown that successive cycles of SAM deposition and ablation provide an extended SiO2 thin-covering layer that protects stainless steel against pitting and general corrosion.",

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AU - Savchenko, Natali

AU - Viva, Federico A.

AU - Starosvetsky, David

AU - Groysman, Alec

AU - Sukenik, Chaim N.

N1 - Funding Information: Acknowledgment This work was supported by a Tashtiyot Grant from the Israel Ministry of Science.

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AB - The corrosion protection of stainless steel (SS 316L) provided by layers of SiO2 and by siloxane-anchored self-assembled monolayer (SAMs) was assessed by cyclic voltammetry (CV) and by potentiostatic current transient in sodium chloride media. The SAMs were composed of octadecyltrimethoxysilane anchored onto a thin (1-2 nm) layer of SiO2. The initial SiO 2 layer was obtained by treatment with tetraethoxyorthosilicate. Successive layers were added by applying the alkylsiloxane and then oxidatively removed by treatment using a UV-ozone cleaner. Though SAMs have been used as corrosion barriers in other contexts, it is shown that successive cycles of SAM deposition and ablation provide an extended SiO2 thin-covering layer that protects stainless steel against pitting and general corrosion.

KW - 316L stainless steel

KW - Corrosion barrier coatings

KW - Pitting corrosion

KW - Potentiostatic current transient

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ER -

Siloxane-based thin films for corrosion protection of stainless steel in chloride media

Abstract

Bibliographical note

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Keywords

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