Thermal spray coatings in renewable energy applications

Wijewardane, Samantha

doi:10.1016/b978-0-85709-769-9.00010-5

Cited by 9 publications

(5 citation statements)

References 33 publications

(27 reference statements)

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“…Al 2 O 3 -based powder is capable of several modifications under the influence of high temperatures [25][26][27][28]. Also, during thermal injection the composition of the Al 2 O 3 coating is α, γ, δ, θ and different phases, of which the formation of α and γ phases predominates.…”

Section: Research Results and Discussionmentioning

confidence: 99%

Untitled

2021

Bul.Kar.Univ. "Phys" Ser.

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Research of annealing influence on the hardness of detonation coatings from aluminum oxideThe article examines the effect of annealing on the structure and properties of alumina-based coatings obtained by detonation spraying. Coated samples were kept separately at temperatures of 500, 700, 800 and 1200 °C at a pressure of 3.6*10 -4 Pa for more than 1 hour. It was found that the microhardness of coatings made of alumina increases by 15-30 % after annealing depending on annealing temperature. The results of nanoindentation show that at 1200 °C the nanohardness of coatings after annealing increases by almost 100%. Aluminum oxide coating is characterized by high strength and density of the coating before and after annealing, and slight porosity. Results of X-ray analysis showed that the alumina powder consists of α-Al 2 O 3 lattice, and after detonation injection coating cubes are converted into a semi-γ-cubic lattice. It was found that during the annealing of the coating at 1200 °C all cells of γ-phase completely transit to the α-phase. It was found that the increase in hardness after annealing of alumina coating at 500, 700, 800 and 1200 °C is associated with an increase in volume fraction of α-Al 2 O 3 phase.

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Section: Research Results and Discussionmentioning

confidence: 99%

Untitled

2021

Bul.Kar.Univ. "Phys" Ser.

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“…The use of TSA coatings was then widely spread and nowadays, many examples of the performance of Al coatings in big structures such as steel bridges, tanks, oil and gas pipelines, oil and gas platforms, ship hulls, sluice gates, and canal lock gates, etc are documented (Cavassi and Cornago 1999;Ce and Paul 2017;Control 1983;Fukumoto 2008;Koch et al 2002;Rezakhani 2007;Szymański et al 2015;Wijewardane 2015). In some of them, TSA coatings provided corrosion protection for more than 50 years (Fauchais and Vardelle 2012;Mandeno 2013).…”

Section: Long-term Tests In Real Situationmentioning

confidence: 99%

Evolution of TSA/TSZ coatings: a review on recent advances on cold gas spraying for steel corrosion protection

et al. 2021

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For decades, zinc- and aluminum-based coatings have been considered the best material choice for steel corrosion protection since they may act as a protective barrier and show sacrificial behavior. These coatings are often prepared by galvanizing methods. However, their application by thermal spraying techniques (wire arc spraying, WAS and flame spraying, FS) has been proved as a cost-effective solution for the preparation of long-term corrosion-resistant coatings. This review selectively collects the most relevant information about the application and performance of these two techniques on Zn and Al coatings for corrosion protection. The report summarizes separately the Zn and Al data from the effect of the spraying parameters on coating properties on the one hand, and the results shown in long-term studies carried out in relevant and real exposure conditions, on the other. Finally, this review includes a description and comparison of the most recent advances found out with the novel and emerging spray technique, cold gas spray, for the deposition of Zn and Al coatings for corrosion protection purposes. Nevertheless, the use of this technique has not reached the stage of wide industrial application yet and therefore its long-term performance is unknown, which suggests that there is still room for further development.

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“…Although TS is considered a low-cost process compared to other coating application processes [ 8 ], the intensive energy required to heat the application material until it is in a melted state, the gases and the atomising jets used to accelerate the melted or semi-melted particles have a not insignificant impact from an environmental and economic point of view [ 1 , 3 ]. For this reason, the industry that adopts this treatment can face pressure from environmentalists due to the high consumption of chemical substances, the emission of gases into the atmosphere, energy consumption and the generation of hazardous waste from particulate material that has not adhered to the surface of the parts [ 1 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

A conceptual model for evaluating eco-efficiency of thermal spraying processes

Xavier Belem,

Junior,

Mummolo

et al. 2024

Heliyon

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Thermal spray coatings in renewable energy applications

Cited by 9 publications

References 33 publications

Untitled

Untitled

Evolution of TSA/TSZ coatings: a review on recent advances on cold gas spraying for steel corrosion protection

A conceptual model for evaluating eco-efficiency of thermal spraying processes

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