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Plasma Diagnostics for a Low-Pressure Plasma Spray Deposition System

Published online by Cambridge University Press:  25 February 2011

Suzanne H. Weissman ,
Mark F. Smith  and
William B. Chambers
Suzanne H. Weissman
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
Mark F. Smith
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
William B. Chambers
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
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Abstract

Plasma temperatures and spray particle velocities were measured in a low pressure plasma spray system. Plasma temperatures of 6,540–9,050 K were calculated from argon atomic emission spectra by the Boltzmann slope method. Peak particle velocities up to 365 m/s were measured with a laser velocimeter for 44 pm Al2O3, spray powder. Measured particle velocity distributions show a strong dependence on process chamber pressure over the range of 50–600 Torr.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 98: Symposium K – Plasma Processing and Synthesis of Materials II , 1987 , 197
Copyright
Copyright © Materials Research Society 1987

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References

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