Journal ArticleDOI
Understanding plasma spraying
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TLDR
In this paper, a summary of the actual knowledge in plasma spraying with an emphasis on the points where work is still in progress is presented, including: the plasma torches with the resulting plasma jets and their interactions with the surrounding environment, powder injection with the heat, momentum and mass transfers between particles and first plasma jets, the particles flattening and solidification, forming splats which then layer to form the coating.Abstract:
This article intends to summarize our actual knowledge in plasma spraying with an emphasis on the points where work is still in progress. It presents successively: the plasma torches with the resulting plasma jets and their interactions with the surrounding environment; the powder injection with the heat, momentum and mass transfers between particles and first plasma jets and then plasma plume; the particles flattening and solidification, forming splats which then layer to form the coating; the latest developments related to the production of plasma sprayed finely structured coatings.read more
Citations
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Journal ArticleDOI
Comparison between metallic and ceramic splats: Influence of viscosity and kinetic energy on the particle flattening
TL;DR: In this paper, the impact, flattening and solidification of millimetre and micrometre-sized ceramic (alumina) and metallic (Ni5Al) drops or droplets onto a smooth 304L stainless steel (Ra = 0.06μm) substrate have been studied to understand the impact phenomena.
Journal ArticleDOI
Characterisation of plasma-sprayed SrFe12O19 coatings for electromagnetic wave absorption
Kirsten Bobzin,Giovanni Bolelli,Markus Bruehl,Arto Hujanen,Pertti Lintunen,Darja Lisjak,Sašo Gyergyek,Luca Lusvarghi +7 more
TL;DR: SrFe 12 O 19 coatings, intended as electromagnetic wave absorbers, were produced by atmospheric plasma spraying (APS) using two different kinds of feedstock powders: spray-dried agglomerates of micrometric SrFe 12O 19 particles (type-A) or spray-Dried agglerates of raw materials (SrCO 3, Fe 2 O 3 ), reactively sintered at 1100 Ã 0 Ã Ã c ( type-B) as mentioned in this paper.
Journal ArticleDOI
Study of Substrate Preheating on Flattening Behavior of Thermal-Sprayed Copper Particles
TL;DR: In this paper, the effect of substrate preheating on the flattening behavior of thermal-sprayed particles was systematically investigated, and it was found that the contact angle increased gradually with the increase of substrate duration after pre-heating.
Journal ArticleDOI
Development of electrically conductive plasma sprayed coatings on glass ceramic substrates
TL;DR: In this article, three systems, metal oxide layer-composites, ceramic-metal mixed layers and ceramic mono-layers as conductive coatings on glass ceramics were thermally sprayed with APS.
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Recent Developments in the Research of Splat Formation Process in Thermal Spraying
TL;DR: In this paper, the development in the research of the splat formation process of the individual splat deposited by thermal spraying during the past few decades, including the experimental and numerical simulations up to today; some classical splashing models were also reviewed.
References
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Book
The Science and Engineering of Thermal Spray Coatings
TL;DR: In this article, the authors present a detailed overview of the main steps in the process of spraying particles and their properties, including properties such as temperature, surface properties, and surface properties.
Journal ArticleDOI
Residual Stresses in Thermal Spray Coatings and Their Effect on Interfacial Adhesion : A Review of Recent Work
T.W. Clyne,S. C. Gill +1 more
TL;DR: In this paper, the main experimental techniques for measurement of residual stresse are briefly described, with particular attention given to the method of continuous curvature monitoring, and relationships are presented between residual stresses and corresponding strain energy release rates during interfacial debonding.
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Knowledge concerning splat formation : An invited review
TL;DR: In this article, the impact and flattening of single particles on smooth or rough substrates with different tilting is summarized and different diagnostic methods, including imaging, are briefly described.
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Recent advances of superhard nanocomposite coatings: a review
TL;DR: A review of the present status of the research and technological development in the field of superhard nanocomposite coatings is attempted in this article, where a number of deposition techniques have been used to prepare Nanocomposites. Among them, reactive magnetron sputtering is most commonly used.
Journal ArticleDOI
On a three-dimensional volume tracking model of droplet impact
TL;DR: In this article, a three-dimensional model of droplet impact onto asymmetric surface geometries is developed, based on RIPPLE, and combines a fixed-grid control volume discretization of the flow equations with a volume tracking algorithm to track the droplet free surface.