Plasma CVD grown Al2O3 and MgAl2O4 coatings for corrosion protection applications

Rishabh, Garg,; Rajagopalan, Narayanan; Pyeon, Myeongwhun; Gönüllü, Yakup; Fischer, Thomas; Khanna, A. S.; Mathur, Sanjay

doi:10.1016/j.surfcoat.2018.09.054

Cited by 18 publications

(4 citation statements)

References 75 publications

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“…The effective necessity of applying ZrCC before applying GPTMS is not evident from the bond strength testing results. The sufficient adhesion and compatibility of organofunctional silane with Al 2 O 3 have been previously demonstrated [34,35,[87][88][89]. However, coating the concrete steel reinforcement of concrete with APSS and subsequently with, e.g., GPTMS increases the slip in the bond strength testing, i.e., even small shear forces can slightly displace the reinforcement and stimulate crack formation in the structure, which may reduce its overall load-bearing capacity.…”

Section: Bond Strength Of Coated Plain Bar Steel Samples In Concretementioning

confidence: 99%

Corrosion Properties and Bond Strength in Normal Strength Concrete of Al2O3 Plasma-Sprayed Plain Bars with ZrCC/Organofunctional Silane Coating

Pokorný,

Prodanovic,

Hurtig

et al. 2024

Buildings

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In this study, the corrosion properties of plasma-sprayed Al2O3 coating (APSS) with a topcoat of zirconium-based conversion coating (ZrCC) and organofunctional silane coating (3-glycidyloxypropyltrimethoxysilane; GPTMS) on carbon steel are investigated in detail. Additionally, the bond strength of plain steel bars coated with this system in normal strength concrete are newly tested. The APSS coating exhibits significant porosity, with unfavourable open pores limiting the barrier protection effect. In contrast, the surface roughness (Ra) significantly increases, improving the bond strength between steel bars and concrete. Such increase in carbon steel roughness improves bond strength in concrete. The synergic application of ZrCC and GPTMS topcoats significantly enhances the corrosion resistance of the base coat (inhibition effect). The character of the GPTMS coating increases the wettability of the APSS coating, which further positively contributes to bond strength between plain bars and concrete. It is demonstrated that when the ZrCC topcoat is applied without GPTMS, the corrosion resistance increases insignificantly and the surface wettability decreases, negatively affecting bond strength in comparison with carbon steel coated using an APSS base coat only.

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Section: Bond Strength Of Coated Plain Bar Steel Samples In Concretementioning

confidence: 99%

Corrosion Properties and Bond Strength in Normal Strength Concrete of Al2O3 Plasma-Sprayed Plain Bars with ZrCC/Organofunctional Silane Coating

Pokorný,

Prodanovic,

Hurtig

et al. 2024

Buildings

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“…Therefore, EDC process is a unique method for surface modification especially for industrial purposes, such as mold and die repairing and performance enhancing in terms of hardness, corrosion and wear resistance. Table 4 shows a summary of coating features between EDC, thermal spraying, vapour deposition and electroplating [3,21,26,[86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101][102][103][104].…”

Section: Coating Mechanisms and Featuresmentioning

confidence: 99%

Surface modification and functionalization by electrical discharge coating: a comprehensive review

Liew

Yap

Wang

et al. 2020

Int. J. Extrem. Manuf.

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Hard coatings are extensively required in industry for protecting mechanical/structural parts that withstand extremely high temperature, stress, chemical corrosion, and other hostile environments. Electrical discharge coating (EDC) is an emerging surface modification technology to produce such hard coatings by using electrical discharges to coat a layer of material on workpiece surface to modify and enhance the surface characteristics or create new surface functions. This paper presents a comprehensive overview of EDC technologies for various materials, and summarises the types and key parameters of EDC processes as well as the characteristics of resulting coatings. It provides a systematic summary of the fundamentals and key features of the EDC processes, as well as its applications and future trends.

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“…Recently, Zr and Ce combinations (ZrCeCC) have been studied, which have been shown to provide a synergistic effect in terms of barrier and self-healing for corrosion inhibition [26]. The conversion coatings are created from chemical procedures [40], atomic layer deposition (ALD) [41], and chemical vapor deposition (CVD) [42] methods on metal surfaces. The production of CBC will limit this review only to chemical techniques for space reasons.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Barrier Coatings: Progress and Perspectives of the Chemical Route

Κορδάς

2022

CMD

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Improved corrosion barrier coatings (CBCs) to protect metals will allow future metal structures to operate for extended periods, ensuring improved safety by reducing environmental pollution and maintenance costs. Many production methods and design of corrosion barrier coatings (CBCs) have been developed. This review focuses only on CBCs made with chemistry techniques. These CBCs can be passive and active with remarkable performance. Today, most of the work focuses on the discovery and application of “smart nanomaterials,” which, if incorporated into “passive CBCs,” will turn them into “active CBCs,” giving them the phenomenon of “self-healing” that extends their service life. Today, many efforts are focused on developing sensors to diagnose corrosion at an early stage and CBCs that self-diagnose the environment and respond on demand. In addition, recent technological developments are reviewed, and a comprehensive strategy is proposed for the faster development of new CBC materials.

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Plasma CVD grown Al2O3 and MgAl2O4 coatings for corrosion protection applications

Cited by 18 publications

References 75 publications

Corrosion Properties and Bond Strength in Normal Strength Concrete of Al2O3 Plasma-Sprayed Plain Bars with ZrCC/Organofunctional Silane Coating

Corrosion Properties and Bond Strength in Normal Strength Concrete of Al2O3 Plasma-Sprayed Plain Bars with ZrCC/Organofunctional Silane Coating

Surface modification and functionalization by electrical discharge coating: a comprehensive review

Corrosion Barrier Coatings: Progress and Perspectives of the Chemical Route

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