Journal Article

PreJuSER-13070

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Improving Powder Injection in Plasma Spraying by Optical Diagnostics of the Plasma and Particle Characterization

Mauer, G.FZJ* ; Vaßen, R.FZJ* ; Stöver, D.FZJ* ; Kirner, S. ; Marqués, J.-L. ; Zimmermann, S. ; Forster, G. ; Schein, J.

2011
Springer Boston, Mass.

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Please use a persistent id in citations: doi:10.1007/s11666-010-9577-x

Abstract: Powder injection parameters such as 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 (TM) 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.

Keyword(s): J ; computer tomography (auto) ; diagnostics (auto) ; DPV-2000 (auto) ; plasma spraying (auto) ; powder injection (auto) ; TriplexPro (TM) (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellverfahren (IEK-1)

Research Program(s):

1. Rationelle Energieumwandlung (P12)

Appears in the scientific report 2011

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