A Perspective on Plasma Spray Technology

Vardelle, Armelle; Moreau, Christian; Themelis, Nickolas J.; Chazelas, Christophe

doi:10.1007/s11090-014-9600-y

Cited by 145 publications

(56 citation statements)

References 34 publications

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“…We suppose these results are quite important due to the following two reasons: firstly, the structure of coatings is similar to that of nanocomposite, the coating consists of the ductile base with the fcc lattice type which is reinforced by lamellas of hard and heat-resistant intermetallic phase. In perspective, it gives the possibility of creating a protective coating being a combination of such properties as thermal stability, high hardness and good ductility all at once, as noted also by the authors of [2,4,6]. Secondly, the results indirectly confirm the correctness of the computer stimulation of temperature profiles; therefore the correct model of the process as the whole and reliable software in particular were designed.…”

Section: Resultssupporting

confidence: 55%

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Plasma-Assisted Automated Precision Deposition of Powder Coating Multifunctional Systems

et al. 2017

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The paper describes the results of developing a new technology of precision application of powder coating multifunctional systems to protect surfaces of industrial products using the microplasma material processing complex with the assistance of an industrial robot. The choice of components for developing the multifunctional powder coating systems and the trajectory of the plasma source and processing modes is made on the basis of optimized condition identified by initial experimentation and mathematical modelling. The use of a robot with a programmable controller provides high accuracy and performance of coating deposition onto the parts with a complex shape. The application of this technology allows obtaining multifunction systems of powder coatings with a predicted nanostructure and a complex set of properties such as microhardness and corrosion resistance. These systems are designed to protect friction surfaces and cutting tools, as well as to protect and restore the surface of components operating in corrosive environments and at high temperatures.

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Section: Resultssupporting

confidence: 55%

“…Combustion flame spraying, high velocity oxy-fuel spraying (HVOF), plasma spraying, and microplasma spraying are widely used in a variety of industrial and medical applications [2]. Among the different existing plasma spraying processes, microplasma spraying (MPS) is comparatively new and offers specific and unique properties [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Plasma-Assisted Automated Precision Deposition of Powder Coating Multifunctional Systems

et al. 2017

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“…In plasma cutting, the ever increasing need for higher productivity and cutting quality has directed research towards the improvement of electrode and nozzle lifetimes and process control, especially during the transient phases of the cutting process. The need for thinner coatings with finer microstructure, which are more accommodating of thermal and mechanical stresses, has motivated the development of relatively-new plasma spray processes, including solution and suspension spraying, very-low-pressure plasma spraying (VLPPS) and plasma spray-chemical vapour deposition (PS-CVD) [124].…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

“…In welding, such properties include the microstructure, and the residual stress and distortion, of the welded metal [130]. In plasma spraying, the properties of the deposited coating, including its structure, porosity, stresses and adhesion to the substrate, are critical [124]. Coupling of the plasma model to the material property model requires a transfer of information between computer codes, in some cases in both directions; this is complicated by the different meshes and computational methods used (for example, finite element analysis for residual stress calcul ations) and the different platforms used to run the codes.…”

Section: Thermal Plasma Applicationsmentioning

confidence: 99%

The 2017 Plasma Roadmap: Low temperature plasma science and technology

Adamovich

Baalrud

Bogaerts

et al. 2017

J. Phys. D: Appl. Phys.

751

549

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“…Although a large number of experimental and modeling results concerning the plasma spraying process have been published [5][6][7], the complicated interactions of the plasma with electromagnetic, thermal, and acoustics phenomena are still not fully understood [8]. In plasma spraying, the anode nozzle is one of the key components of the plasma torch.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Anode Inner Contour on Atmospheric DC Plasma Spraying Process

Wen¹,

Liu²,

Zhou³

et al. 2017

Advances in Materials Science and Engineering

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In thermal plasma spraying process, anode nozzle is one of the most important components of plasma torch. Its inner contour controls the characteristics of plasma arc/jet, determining the motion and heating behaviors of the in-flight particles and hence influencing the coating quality. In this study, the effects of anode inner contour, standard cylindrical nozzle, and cone-shaped Laval nozzle with conical shape diverging exit (CSL nozzle) on the arc voltage, net power, thermal efficiency, plasma jet characteristics, in-flight particle behaviors, and coating properties have been systematically investigated under atmospheric plasma spraying conditions. The results show that the cylindrical nozzle has a higher arc voltage, net power, and thermal efficiency, as well as the higher plasma temperature and velocity at the torch exit, while the CSL nozzle has a higher measured temperature of plasma jet. The variation trends of the plasma jet characteristics for the two nozzles are comparable under various spraying parameters. The in-flight particle with smaller velocity of CSL nozzle has a higher measured temperature and melting fraction. As a result, the coating density and adhesive strength of CSL nozzle are lower than those of cylindrical nozzle, but the deposition efficiency is greatly improved.

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A Perspective on Plasma Spray Technology

Cited by 145 publications

References 34 publications

Plasma-Assisted Automated Precision Deposition of Powder Coating Multifunctional Systems

Plasma-Assisted Automated Precision Deposition of Powder Coating Multifunctional Systems

The 2017 Plasma Roadmap: Low temperature plasma science and technology

The Influence of Anode Inner Contour on Atmospheric DC Plasma Spraying Process

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