Improving Powder Injection in Plasma Spraying by Optical Diagnostics of the Plasma and Particle Characterization

Autor:	Detlev Stöver, Stefan Kirner, Robert Vaßen, G. Forster, Jochen Schein, S. Zimmermann, José-Luis Marqués, Georg Mauer
Rok vydání:	2010
Předmět:	Materials science Torch Plasma parameters business.industry Plasma Injector Condensed Matter Physics Surfaces Coatings and Films law.invention Plume Optics Physics::Plasma Physics law Powder metallurgy Materials Chemistry Particle business Particle beam
Zdroj:	International Thermal Spray Conference.
ISSN:	2768-1505 2768-1491
Popis:	Powder injection parameters like gas flow, injection angle and injector position strongly influence the particle beam and thus coating properties. The interaction of the injection conditions on particle properties based on DPV-2000 measurements using the single-cathode F4 torch is presented. Furthermore, the investigation of the plasma plume by emission computer tomography is described when operating the three-cathode TriplexPro torch. By this imaging technology, the three-dimensional shape of the radiating plasma jet is reproduced based on images achieved from three CCD cameras rotating around the plume axis It is shown how the formation of the plasma jet changes with plasma parameters and how this knowledge can be used to optimize particle injection.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dd1390df94bda5a80f9c8ffb7b6550e https://doi.org/10.31399/asm.cp.itsc2010p0510 Zobrazit plný text záznamu