Cerium acetate-modified aminopropylsilane triol: A precursor of corrosion-preventing coating for aluminum-finned condensers

Sugama, T.

doi:10.1007/bf02774594

Cited by 35 publications

(12 citation statements)

References 18 publications

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“…Sugama modified aminopropylsilane triol by using Ce acetate and as a dopant in the concentration range from 0.2 to 10 wt%. 39 At 3 wt% Ce the maximum performance was achieved in terms of significantly decreased corrosion rate and increased hydrophobicity of the surface which was ascribed to precipitation of Ce 3+ oxide within the organic coating. 39 Catubig et al used rare earth mercaptoacetate inhibitors on AA2024.…”

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confidence: 91%

“…19 The effect of anions such as SO 4 2− , has only rarely been considered 24,38 and that of acetate anion are scarce. 8,33,[39][40][41] Mansfeld and Wang 33 used immersion in hot cerium acetate as a first step of the surface modification process of AA2024. Sugama modified aminopropylsilane triol by using Ce acetate and as a dopant in the concentration range from 0.2 to 10 wt%.…”

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confidence: 99%

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Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Rodič

Milošev

2015

J. Electrochem. Soc.

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The corrosion protection of pure aluminium and its alloys AA2024-T3 and AA7075-T6 has been studied in 0.1 M NaCl with and without the addition of Ce(III) chloride, Ce(III) nitrate, Ce(III) acetate and Ce(IV) sulfate. The study of Ce(III) acetate has been scarce but is here shown to be the most effective of the cerium salts studied, especially for AA7075-T6. The inhibition effectiveness of cerium salts is: Ce(III) acetate > Ce(III) chloride > Ce(III) nitrate for the metals studied. Ce(IV) sulfate does not inhibit corrosion. Electrochemical potentiodynamic measurements were used to investigate the mechanism of inhibition by cerium salts. Immersion tests in 0.1 M NaCl, with and without the addition of Ce(III) chloride and Ce(III) acetate, were performed to determine the effects of the inhibitors on the extent of corrosion damage at the surface of all three metals. For pure aluminium the inhibitory effectiveness was 78.5%, 82.6% and 84.0% in the presence of 3 mM Ce(III) nitrate, chloride and acetate, respectively. Aluminium and its alloys 2024-T3 (AA2024-T3) and 7075-T6 (AA7075-T6) generally have good resistance to corrosion under atmospheric conditions. They are used as construction materials, primarily in aircraft applications, because of their physical characteristics such as rigidity and high strength-to-weight ratio.1,2 The main differences between aluminium and its alloys lie in their mechanical and corrosion properties. Aluminium is cold worked, whereas AA2024-T3 and AA7075-T6 are heat treated and cold worked (T3) or artificially aged (T6). The reason for alloying aluminium is to increase strength by forming intermetallic particles, IMs.

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confidence: 91%

mentioning

confidence: 99%

Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Rodič

Milošev

2015

J. Electrochem. Soc.

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“…The implanted steel is subjected to corrosive conditions generated by the physiological fluids of the body. This situation allows dissolved iron to diffuse into the patient's body causing the tissues in contact to be damaged 9,10 . One of the possible solutions to the problems of corrosion of the steels used in implantology, is through the superficial modification of the substrate by the application of coatings that are biocompatible.…”

Section: Introductionmentioning

confidence: 99%

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Bautista-Ruiz¹,

Aperador²,

Olaya³

2018

RJC

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In this investigation, the compound Bi24Si40O2 was synthesized via sol-gel and applied on substrates of 316L stainless steel by spin coating varying speed. In the coatings obtained, the corrosion response in simulated physiological solution was evaluated by electrochemical impedance spectroscopy and polarization potentiodynamic curves. The morphology and surface topography was studied, also, were determined the microstructure, thickness values and roughness of the coatings. The results of this study allow establishing a high degree of anticorrosive effectiveness offered by the coatings as a function of the number of layers applied to the substrate and their possible application in the biomedical industry.

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“…Al sufrir ataque corrosivo el hierro de difunde en el cuerpo. El exceso de hierro en el organismo puede provocar hemosiderosis (un aumento de hierro en el tejido sin alteración de su estructura o función), o hemocromatosis (en la cual se daña el tejido) (Sugama, 2005).…”

Section: Introductionunclassified

Caracterización Anticorrosiva y de Biocompatibilidad en Recubrimientos Silicio-Titanio-Zirconio Sintetizados Vía Sol-gel y Depositados sobre Sustratos 316L

Bautista-Ruiz

2018

Inf. tecnol.

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ResumenSe sintetizaron, los sistemas ternarios [Si/Ti/Zr: 10/70/20] y [Si/Ti/Zr: 10/20/70] vía sol-gel y se aplicaron sobre sustratos de acero inoxidable 316L mediante la técnica de inmersión. En los recubrimientos obtenidos se evaluó la respuesta anticorrosiva en una solución fisiológica simulada mediante curvas potenciodinámicas de polarización. Se estudió la biocompatibilidad celular de osteoblastos; la adhesión sustrato-recubrimiento; la topografía superficial, el espesor y la rugosidad en los recubrimientos. Los resultados de este estudio permiten establecer un alto grado de efectividad anticorrosiva y buena biocompatibilidad. Los recubrimientos sintetizados vía sol-gel establecen su potencialidad como barrera anticorrosiva en función del sistema ternario aplicado al sustrato de acero inoxidable 316L.Palabras clave : propiedades anticorrosivas, sol-gel, silicio-titanio-zirconio, biocompatibilidad, adhesión Anticorrosive and Biocompatibility Characterization of SiliconTitanium-Zirconium Coatings Synthesized by Sol-gel and Deposited on Substrates 316L AbstractThe ternary systems [Si/Ti/Zr: 10/70/20] and [Si/Ti/Zr: 10/20/70] were synthesized via sol-gel and applied on 316L stainless steel substrates by dip-coating. In the coatings obtained, the corrosion response was evaluated in a simulated physiological solution using potentio-dynamic polarization curves. The cellular biocompatibility of osteoblasts was studied; Substrate-coating adhesion, and the surface topography and the roughness in the coatings. The results of this study allow establishing a high degree of anticorrosive effectiveness and good biocompatibility. Sol-gel uncoated coatings establish their potential as an anticorrosive barrier as a function of the ternary system applied to the 316L stainless steel substrate.

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Cerium acetate-modified aminopropylsilane triol: A precursor of corrosion-preventing coating for aluminum-finned condensers

Cited by 35 publications

References 18 publications

Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Corrosion Inhibition of Pure Aluminium and Alloys AA2024-T3 and AA7075-T6 by Cerium(III) and Cerium(IV) Salts

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Caracterización Anticorrosiva y de Biocompatibilidad en Recubrimientos Silicio-Titanio-Zirconio Sintetizados Vía Sol-gel y Depositados sobre Sustratos 316L

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