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Tomographic investigation of the injection conditionsin the case of suspension plasma spraying


Wissenschaftlicher Fachbeitrag

Authors: Dipl.-Ing. Stefan Kirner, Dr.-Ing. Karsten Hartz-Behrend, Dr.-Ing. Günter Forster, Dr. José-Luis Marqués, Prof. Dr. Jochen Schein, Dipl.-Min. Martin Erne, Dipl.-Phys. Jens Prehm, Apl. Prof. Dr.-Ing. habil. Kai Möhwald, Prof. Dr.-Ing. habil. Dr.-Ing. E.h. Dr. h. c. Friedrich-Wilhelm Bach
In order to be able to feed feedstock with particle sizes in the nanometre range into the process, suspensions are being utilised for thermal spraying. However, if the suspension is injected radially, the material injection is significantly more complex than in conventional thermal spraying processes. This is caused by the two-phase nature of the suspension, by the resulting rheological and fluidmechanical properties of the suspension and by the interaction between these properties and the process parameters. The utilisation of tomography in order to investigate injection conditions in the case of suspension plasma spraying (SPS) is presented in this article. As is shown, injection conditions leading to improved coating properties can be found on the basis of tomographic measurements.
Pages: 116 - 122
Ausgabe 2 (2010) Jahrgang 3 Page 116
Ausgabe 2 (2010) Jahrgang 3 Page 117
Ausgabe 2 (2010) Jahrgang 3 Page 118
Ausgabe 2 (2010) Jahrgang 3 Page 119
Ausgabe 2 (2010) Jahrgang 3 Page 120
Ausgabe 2 (2010) Jahrgang 3 Page 121
Ausgabe 2 (2010) Jahrgang 3 Page 122
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