Thermal diffusivity and conductivity of yttria stabilized zirconia coatings obtained by suspension plasma spraying

Łatka, Leszek; Cattini, Andrea; Pawłowski, Lech; Valette, Stéphane; Pateyron, Bernard; Lecompte, Jean-Pierre; Kumar, R. Suresh; Denoirjean, Alain

doi:10.1016/j.surfcoat.2012.08.014

Cited by 37 publications

(22 citation statements)

References 18 publications

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“…The improvement of materials used in plasma sprayed coatings processes exact detailed study of the morphology of coating [2,7,14,20]. Moreover, the influence of plasma spraying process parameters on properties of coatings is systematically studied [4,8,15]. For industry applications coating adhesion to substrate is crucial.…”

Section: Introductionmentioning

confidence: 99%

Research into Morphology and Properties of TiO2 – NiAl Atmospheric Plasma Sprayed Coating

Maruszczyk¹,

Dudek²,

Szala³

2017

Adv. Sci. Technol. Res. J.

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Titania (TiO 2 ) based coatings are ceramic products with unique properties that make them widely applicable (e.g. in automotive industry, optoelectronics, chemical processing or medicine). Atmospheric plasma spray process enables to deposit TiO 2 with addition of NiAl feedstock material which has an influence on coating cohesion and adhesion to substrate. However, the literature and technical notes give little information about parameters of spraying of TiO 2 -10 wt.% NiAl feedstock powders enables producing coating without nonuniformities including cracks and delamination form substrate. The aim of the work was to verify the parameters of plasma spraying by evaluation of the morphology and properties of manufactured the TiO 2 -10 wt.% NiAl coatings. Titania based coatings were deposited by means of atmospheric plasma sprayed on steel substrate using TiO 2 -10 wt.% NiAl feedstock powders. Morphology and microstructure were examined using light optical microscope (LOM) and scanning electron microscope (SEM). Coating chemical composition were analysed by means of SEM-EDS method. Coating surface topography and Knoop microhardness were determined. Porosity and thickness were evaluated by using quantities image analysis programme. Plasma spraying parameters used in our research allow to obtain uniform coating without cracks and delamination at coating-substrate interface. It acknowledges that uniformity of coating technological properties as well manufactured coatings can be put to wear tests, such as high temperature oxidation, corrosion, erosion or cavitation erosion resistance evaluation.

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Section: Introductionmentioning

confidence: 99%

Research into Morphology and Properties of TiO2 – NiAl Atmospheric Plasma Sprayed Coating

Maruszczyk¹,

Dudek²,

Szala³

2017

Adv. Sci. Technol. Res. J.

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“…This technique is known as Suspension Plasma Spraying (SPS) and differs significantly from conventional APS since the suspension is fragmented into droplets and the liquid phase vaporised before the solid feedstock is processed [24,25]. This novel technique has recently undergone an extensive development, leading to the deposition of nanostructured coatings with unique properties for solid oxide fuel cells (SOFC) functional layers [28,29], thermal barrier coatings [30,31], photocatalytic layers [32,33], wear resistant coatings [34] or bioactive layers [35].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Bannier

Vicent

Rayón

et al. 2014

Applied Surface Science

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Versión / Versió:Preprint were used as starting materials. The coatings microstructure and phase composition were fully characterised using FEG-SEM and XRD techniques. Nanoindentation technique was used to determine the coatings hardness and elastic modulus properties.Results have shown that the addition of titania to alumina SPS coatings causes different crystalline phases and a higher powder melting rate is reached. The higher melted material achieved, when titania is added leads to higher hardness and elastic modulus when the same spraying parameters are used.

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“…Finally, during the growth of coating from the piling up of fine particles, stacking defects, called speckles, can be observed when the ratio Ra/d 50 …”

Section: à6mentioning

confidence: 99%

“…Several thorough reviews on these subjects in the literature, describe the different applications (Ref 3-6, 47). The most investigated and probably also those for which exist an industrial interest are the following: -Oxides used for thermal barrier coatings (TBC) and in particular yttria stabilized zirconia (YSZ): SPS seems to be now an emerging TBC production technique, thanks to the ability of this process to generate columnar structures and replicate EB-PVD coatings (Ref [48][49][50][51][52].…”

Section: Main Ceramic Coatings Studiedmentioning

confidence: 99%

What Do We Know, What are the Current Limitations of Suspension Plasma Spraying?

Fauchais¹,

Vardelle²,

Vardelle³

et al. 2015

J Therm Spray Tech

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Nano-structured coatings should exhibit better properties than micro-structured coatings because of a high volume fraction of internal interfaces. Since the mid-nineties a large body of works have been devoted to suspension and solution plasma spraying for the deposition of finely and even nanometerstructured coatings. The aim of this paper is to take stock of our present knowledge in the field of suspension plasma spraying that is, at the moment, essentially used for oxide ceramic coatings. It will first tackle the injection of the suspension in the plasma jet and the behavior of nano or sub-micro-meter particles processed in the plasma jet core involving the liquid breakup and vaporization that releases the solid particles from the solvent droplets. It will, then, deal with the plasma torches and liquid feeding systems available to suspension spraying. It will finally discuss the key characteristics of suspensions (solvent, dispersant, and particle morphologies), designing of coating microstructure, and potential industrial applications, with the developments requested to cope with these applications.

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Thermal diffusivity and conductivity of yttria stabilized zirconia coatings obtained by suspension plasma spraying

Cited by 37 publications

References 18 publications

Research into Morphology and Properties of TiO2 – NiAl Atmospheric Plasma Sprayed Coating

Research into Morphology and Properties of TiO2 – NiAl Atmospheric Plasma Sprayed Coating

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

What Do We Know, What are the Current Limitations of Suspension Plasma Spraying?

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