Structure stability and corrosion resistance of nano-TiO2 coatings on aluminum in seawater by a vacuum dip-coating method

Liu, Tong; Zhang, Feifei; Xue, Chaorui; Li, Lan; Yin, Yansheng

doi:10.1016/j.surfcoat.2010.09.028

Cited by 61 publications

(28 citation statements)

References 18 publications

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“…Titanium dioxide (TiO 2 ) thin films play a significant role in different areas of research and may lead to promising applications, due to its very good optical and electrical properties, high chemical stability and non-toxic nature. Over the years, TiO 2 has been studied for many potential applications, including as a coating for self-cleaning surfaces, the white pigment in paints and food coloring, solar cells [1], biomaterials applications [2,3], as a material for corrosion resistance [4][5][6][7][8][9][10], and gas sensing [11,12]. TiO 2 can be deposited through various methods [13] such as chemical vapor deposition (CVD), pulsed laser deposition (PLD), electrophoretic deposition (EPD), magnetron sputtering (MS), and sol-gel dip-coating.…”

Section: Introductionmentioning

confidence: 99%

RF Magnetron Sputtering Deposition of TiO2 Thin Films in a Small Continuous Oxygen Flow Rate

et al. 2019

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Rutile titanium oxide (TiO 2 ) thin films require more energy to crystallize than the anatase phase of TiO 2 . It is a prime candidate for micro-optoelectronics and is usually obtained either by high substrate temperature, applying a substrate bias, pulsed gas flow to modify the pressure, or ex situ annealing. In the present work, we managed to obtain high enough energy at the substrate in order for the particles to form rutile TiO 2 at room temperature without any intentional substrate bias in a continuous gas flow. The rutile TiO 2 thin films were deposited by a reactive radiofrequency magnetron sputtering system from a titanium target, in an argon/oxygen gas mixture. Investigations regarding the film's structure and morphology were performed by X-ray diffraction (XRD), X-ray reflectivity (XRR), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDAX), while the optical properties were investigated by means of ellipsometry.

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Section: Introductionmentioning

confidence: 99%

RF Magnetron Sputtering Deposition of TiO2 Thin Films in a Small Continuous Oxygen Flow Rate

et al. 2019

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“…Especially in chloride environment, precipitation hardened Al alloys tend to show increased susceptibility to pitting corrosion and stress corrosion cracking [3,4]. Therefore, an adequate surface protection is frequently essential and is usually provided by various types of coatings [5][6][7] or in cases in which mechanical and microstructural enhancements are required, with different surface engineering processing techniques. In recent years, laser processing methods, such as laser surface remelting [4,8] and laser shock peening [9,10], have attracted interest because of their ability to improve the characteristics of aluminium alloys.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Corrosion Behaviour of Aluminium Alloy Subjected to Laser Shock Peening without a Protective Coating

Trdan

Grum

2015

Advances in Materials Science and Engineering

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The effect of shock waves and strain hardening of laser shock peening without protective coating (LSPwC) on alloy AA 6082-T651 was investigated. Analysis of residual stresses confirmed high compression in the near surface layer due to the ultrahigh plastic strains and strain rates induced by multiple laser shock waves. Corrosion tests in a chloride environment were carried out to determine resistance to localised attack, which was also verified on SEM/EDS. OCP transients confirmed an improved condition, that is, a more positive and stable potential after LSPwC treatment. Moreover, polarisation resistance of the LSPwC treated specimen was by a factor of 25 higher compared to the untreated specimen. Analysis of voltammograms confirmed an improved enhanced region of passivity and significantly smaller anodic current density of the LSPwC specimen compared to the untreated one. Through SEM, reduction of pitting attack at the LSPwC specimen surface was confirmed, despite its increased roughness.

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“…Aluminium has exceptional corrosion resistance thanks to the passive Al 2 O 3 layer developing rapidly on its surface; nevertheless, this metal suffers low resistance against pitting corrosion especially in onshore environment. TiO 2 coating, especially in the form of nano-TiO 2 , is reported to enhance corrosion resistance of aluminium in seawater [36,37].…”

Section: Introductionmentioning

confidence: 99%

Corrosion protection of 1050 aluminium alloy using a smart self-cleaning TiO2–CNT coating

Shadravan

Sadeghian²,

Nemati

et al. 2015

Surface and Coatings Technology

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Structure stability and corrosion resistance of nano-TiO2 coatings on aluminum in seawater by a vacuum dip-coating method

Cited by 61 publications

References 18 publications

RF Magnetron Sputtering Deposition of TiO2 Thin Films in a Small Continuous Oxygen Flow Rate

RF Magnetron Sputtering Deposition of TiO2 Thin Films in a Small Continuous Oxygen Flow Rate

Investigation of Corrosion Behaviour of Aluminium Alloy Subjected to Laser Shock Peening without a Protective Coating

Corrosion protection of 1050 aluminium alloy using a smart self-cleaning TiO2–CNT coating

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