Influence of Substrate Roughness and Ceramic Content on Deposition Characteristics of Cold-Sprayed Ti/TiO2 Deposits

Kumar, Avneesh; Singh, Harpreet; Kant, Ravi

doi:10.1007/s12540-022-01323-4

Cited by 4 publications

(2 citation statements)

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“…It was revealed that for vacuum heattreated coating with a porosity of about 1.8% showed passive current density identical to bulk titanium [15]. Other studies related to CS titanium are reported for deposition characteristics [16]. Only limited studies are available for their corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Investigations on Corrosion Behaviour of Cold-Sprayed Titanium on SS316L Steel

Khan,

Vinay,

Kumar

et al. 2024

JTSE

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Cold-Spray (CS) is a coating technique in which micron sized particles are propelled with a carrier gas at supersonic velocity hitting the substrate with high kinetic energy. Consequently, plastic deformation and localised melting at particle substrate interface cause the deposition and coating build up. Unlike other thermal spray techniques, CS does not involve heating particles to a high temperature thus this process helps in developing coatings with low oxide content even for thermally sensitive materials. Corrosion of structures is a big global challenge and CS is a promising technique to develop corrosion resistant coatings with higher deposition rates. In this current work, Titanium coating was developed on SS-316L by a highpressure CS and analysed for its mechanical and corrosion properties. Corrosion resistance of the generated coating was tested in a 3.5% NaCl medium for varying exposure time to understand the corrosion behaviour during long hour exposures.

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Section: Introductionmentioning

confidence: 99%

Investigations on Corrosion Behaviour of Cold-Sprayed Titanium on SS316L Steel

Khan,

Vinay,

Kumar

et al. 2024

JTSE

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“…They are regularly exposed to diverse weathering processes capable of altering the support characteristics and stability of the coatings themselves [30]. Critical issues related to coating durability involve the extended performance of photocatalytic material surfaces and the potential release of TiO 2 into the environment [6,31].…”

Section: Introductionmentioning

confidence: 99%

Self-Cleaning and Charge Transport Properties of Foils Coated with Acrylic Paint Containing TiO2 Nanoparticles

Armaković,

Savanović,

Šiljegović

et al. 2024

Inorganics

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The study comprehensively investigates the design and performance of self-cleaning surfaces fabricated by coating aluminum foil with an acrylic paint matrix enriched with different content of titanium dioxide (TiO2) nanoparticles. The main goal was to assess the self-cleaning characteristics of the surfaces obtained. This study employs scanning electron microscopy (SEM) to analyze the morphology of TiO2-modified acrylic surfaces, revealing spherical particles. Raman spectroscopy elucidates signatures characterizing TiO2 incorporation within the acrylic matrix, providing comprehensive insights into structural and compositional changes for advanced surface engineering. Alternating current (AC) impedance spectroscopy was used to assess selected charge transport properties of produced self-cleaning surfaces, allowing us to gain valuable insights into the material’s conductivity and its potential impact on photocatalytic performance. The self-cleaning properties of these tiles were tested against three frequently used textile dyes, which are considered to pose a serious environmental threat. Subsequently, improving self-cleaning properties was achieved by plasma treatment, utilizing a continuous plasma arc. The plasma treatment led to enhanced charge separation and surface reactivity, crucial factors in the self-cleaning mechanism. To deepen our comprehension of the reactive properties of dye molecules and their degradation dynamics, we employed a combination of density functional tight binding (DFTB) and density functional theory (DFT) calculations. This investigation lays the foundation for advancing self-cleaning materials with extensive applications, from architectural coatings to environmental remediation technologies.

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