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Behavior of Alumina Particles in Atmospheric Pressure Plasma Jets

Published online by Cambridge University Press:  21 February 2011

J. R. Fincke  and
W. D. Swank
J. R. Fincke
Affiliation:
Idaho National Engineering Laboratory EG&G Idaho, Inc. Idaho Falls, ID 83415–2211
W. D. Swank
Affiliation:
Idaho National Engineering Laboratory EG&G Idaho, Inc. Idaho Falls, ID 83415–2211
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Abstract

The distribution of Al2O3 particle size, velocity and temperature was mapped over the flow field of a 31.5 kW plasma torch. The effects of varying the powder loading were studied. The powder feed rate was varied between.45 and 2.05 kg/hr independent of the carrier gas flow rate. The particle flow field was non-symmetric due to the method of particle injection. The data indicate that powder feed rate does not significantly affect either the temperature or velocity of the particles, for typical plasma spray conditions, and that the assumption of a dilute particle flow field is valid.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 190: Symposium M – Plasma Processing and Synthesis of Materials III , 1990 , 207
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

1. Fincke, J. R. and Jeffery, C. L., ”Simultaneous Measurement of Particle Size, Velocity and Temperature,” Proceedings of the National Thermal Spray Conference, Cincinnati, Ohio, pp.55–60, October 1988.Google Scholar