Effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings

Mei Yu; Yuxing Liu; Jianhua Liu; Songmei Li; Bing Xue; You Zhang; Xiaolin Yin

doi:10.1016/j.cja.2015.01.011

Effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings

Mei Yu^*
, Yuxing Liu
, Jianhua Liu
, Songmei Li
, Bing Xue
, You Zhang
, Xiaolin Yin

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

35 Scopus citations

Abstract

Abstract The present work examines the effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings. The Si-Zr hybrid sol-gel coatings on a 2A12 aluminum substrate were prepared through hydrolysis and condensation of glycidoxypropyl-trimethoxy-silane (GTMS) and zirconium(IV) n-propoxide (TPOZ). Used as inhibitors for corrosion, three types of cerium salts (Ce(NO₃)₃, CeCl₃, and Ce(CH₃COO)₃) were doped into the sol-gel coatings. Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) were employed to investigate the structures and morphologies of various coatings, and the corrosion resistances of the coatings were evaluated by electrochemical methods and neutral salt spray tests. Experimental results indicate that the addition of cerium salts can hinder the process of corrosion due to their self-healing abilities. Furthermore, the sol-gel coating doped with Ce(CH₃COO)₃ has the best corrosion resistance because of the promotions of hydrolysis and condensation provided by CH₃COO^-.

Original language	English
Article number	428
Pages (from-to)	600-608
Number of pages	9
Journal	Chinese Journal of Aeronautics
Volume	28
Issue number	2
DOIs	https://doi.org/10.1016/j.cja.2015.01.011
State	Published - 1 Apr 2015

Keywords

Cerium salts
Corrosion resistance
Hybrid coating
Inhibitor

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10.1016/j.cja.2015.01.011

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title = "Effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings",

abstract = "Abstract The present work examines the effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings. The Si-Zr hybrid sol-gel coatings on a 2A12 aluminum substrate were prepared through hydrolysis and condensation of glycidoxypropyl-trimethoxy-silane (GTMS) and zirconium(IV) n-propoxide (TPOZ). Used as inhibitors for corrosion, three types of cerium salts (Ce(NO3)3, CeCl3, and Ce(CH3COO)3) were doped into the sol-gel coatings. Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) were employed to investigate the structures and morphologies of various coatings, and the corrosion resistances of the coatings were evaluated by electrochemical methods and neutral salt spray tests. Experimental results indicate that the addition of cerium salts can hinder the process of corrosion due to their self-healing abilities. Furthermore, the sol-gel coating doped with Ce(CH3COO)3 has the best corrosion resistance because of the promotions of hydrolysis and condensation provided by CH3COO-.",

keywords = "Cerium salts, Corrosion resistance, Hybrid coating, Inhibitor",

author = "Mei Yu and Yuxing Liu and Jianhua Liu and Songmei Li and Bing Xue and You Zhang and Xiaolin Yin",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Production and hosting by Elsevier Ltd.",

year = "2015",

month = apr,

day = "1",

doi = "10.1016/j.cja.2015.01.011",

language = "英语",

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TY - JOUR

T1 - Effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings

AU - Yu, Mei

AU - Liu, Yuxing

AU - Liu, Jianhua

AU - Li, Songmei

AU - Xue, Bing

AU - Zhang, You

AU - Yin, Xiaolin

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Abstract The present work examines the effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings. The Si-Zr hybrid sol-gel coatings on a 2A12 aluminum substrate were prepared through hydrolysis and condensation of glycidoxypropyl-trimethoxy-silane (GTMS) and zirconium(IV) n-propoxide (TPOZ). Used as inhibitors for corrosion, three types of cerium salts (Ce(NO3)3, CeCl3, and Ce(CH3COO)3) were doped into the sol-gel coatings. Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) were employed to investigate the structures and morphologies of various coatings, and the corrosion resistances of the coatings were evaluated by electrochemical methods and neutral salt spray tests. Experimental results indicate that the addition of cerium salts can hinder the process of corrosion due to their self-healing abilities. Furthermore, the sol-gel coating doped with Ce(CH3COO)3 has the best corrosion resistance because of the promotions of hydrolysis and condensation provided by CH3COO-.

AB - Abstract The present work examines the effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings. The Si-Zr hybrid sol-gel coatings on a 2A12 aluminum substrate were prepared through hydrolysis and condensation of glycidoxypropyl-trimethoxy-silane (GTMS) and zirconium(IV) n-propoxide (TPOZ). Used as inhibitors for corrosion, three types of cerium salts (Ce(NO3)3, CeCl3, and Ce(CH3COO)3) were doped into the sol-gel coatings. Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) were employed to investigate the structures and morphologies of various coatings, and the corrosion resistances of the coatings were evaluated by electrochemical methods and neutral salt spray tests. Experimental results indicate that the addition of cerium salts can hinder the process of corrosion due to their self-healing abilities. Furthermore, the sol-gel coating doped with Ce(CH3COO)3 has the best corrosion resistance because of the promotions of hydrolysis and condensation provided by CH3COO-.

KW - Cerium salts

KW - Corrosion resistance

KW - Hybrid coating

KW - Inhibitor

UR - https://www.scopus.com/pages/publications/84928076029

U2 - 10.1016/j.cja.2015.01.011

DO - 10.1016/j.cja.2015.01.011

M3 - 文章

AN - SCOPUS:84928076029

SN - 1000-9361

VL - 28

SP - 600

EP - 608

JO - Chinese Journal of Aeronautics

JF - Chinese Journal of Aeronautics

IS - 2

M1 - 428

ER -

Effects of cerium salts on corrosion behaviors of Si-Zr hybrid sol-gel coatings

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Keywords

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