Results 261 to 270 of about 3,420 (292)
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Modelling of plasma spraying of ceramic coatings at atmospheric pressure
Ceramics International, 1991Abstract Many works have been devoted to the study of plasma sprayed coatings and, if progresses have been made, the coatings are still resulting more from an empirical understanding than from a scientific one. In this paper are presented what is the present state of our knowledge in the modelling and measurement of the parameters controlling the ...
P. Fauchais, A. Vardelle, M. Vardelle
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Melting Refining Mechanisms in Supersonic Atmospheric Plasma Spraying
Plasma Chemistry and Plasma Processing, 2012In recent years, Yttria-stabilized zirconia based thermal barrier coatings (TBCs) are deposited by newly-developed high-efficiency supersonic atmospheric plasma spraying (SAPS) technology. The final microstructure of the plasma-sprayed coatings is strongly dependent on the size distribution of spray particles.
Wei Tao Zhao +3 more
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Atmospheric pressure plasma jet for liquid spray treatment
Journal of Physics D: Applied Physics, 2016Atmospheric pressure plasma jets have been intensively studied in recent years due to growing interest in their use for biomedical applications and surface treatments. Either surfaces can be treated by a plasma jet afterglow for cleaning or activation or a material can be deposited by a reactive gas component activated by plasma.
S Mitić, J Philipps, D Hofmann
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Densification of Atmospheric Plasma Sprayed Wear Resistant Coatings
International Thermal Spray Conference, 2009Abstract Thermal spray coatings produced from hard materials show good potential for extending the service life of sheet metal forming tools. However, post-process methods currently used to improve coating surface quality are slow and expensive, especially on complex surfaces.
W. Tillmann +5 more
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Microwave plasma at atmospheric pressure for thermal spray technology
IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340), 2003Summary form only given, as follows. Recent developments in "cold" and microwave thermal spraying allow the coating process to be considered for many different applications with a wide range of coatings and substrates. This project will investigate the use of an atmospheric microwave plasma, at 2.46GHz frequency, for preheat gases and coating powders ...
A.I. Al-Shamma'a +3 more
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Present status of low pressure and atmospheric plasma spraying
Vacuum, 1990Abstract New developments in the fields of spray gun engineering, powder engineering, process control and plasma technology are seen to stimulate each other. As a result, plasma spraying extends its application field. We report recent achievements in spray equipment, powders and plasma models: strongly vortex-stabilized guns, guns with adjustable arc
H.-D. Steffens, M. Mack
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Graded coating of hydroxyapatite and titanium by atmospheric plasma spraying
Materials Letters, 1999Abstract Graded coating of hydroxyapatite and titanium by plasma spraying was attempted as an alternative means to direct deposition of hydroxiapatite on titanium. The application of multiple layers of hydroxyapatite and titanium mixtures ensured a gradual change in composition across the interface.
Eunsung Park, Robert A Condrate
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Intersplat Oxidation of Atmospheric Plasma Sprayed MCrAlY Coatings
Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, 2014MCrAlY coatings and thermal barrier coatings (TBC) are commonly used in gas turbines to prolong the life of structural parts. The atmospheric plasma spray (APS) process yields coatings with a typical splat-on-splat structure which oxidizes at intersplat boundaries during high-temperature exposure.
Robert Eriksson +3 more
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Alumina-Titania Spot Spraying Bead Formation and Characteristics in Atmospheric Plasma Spraying
Materials Science Forum, 2007Fine and coarse alumina-titania composite particles were overlaid by allowing the particles to be deposited for a short time without moving a plasmatron [spot spraying bead]. Both the deposition efficiency and maximum deposition rate were measured at the different plasma gas composition.
Hye Sook Joo +5 more
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Microstructure and Phase Formation of Atmospheric Plasma Sprayed Yag Coatings
Surface and Coatings Technology, 2023Lang Li +4 more
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