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Temperature, Velocity, and Species Mapping in an Induction Plasma

Published online by Cambridge University Press:  21 February 2011

A. D. Donaldson ,
J. A. Batdorf ,
J. R. Fincke ,
D. J. Varacalle Jr  and
L. S. Richardson
A. D. Donaldson
Affiliation:
EG&G Idaho, Inc., P. O. Box 1625, Idaho Falls, ID 83415
J. A. Batdorf
Affiliation:
EG&G Idaho, Inc., P. O. Box 1625, Idaho Falls, ID 83415
J. R. Fincke
Affiliation:
EG&G Idaho, Inc., P. O. Box 1625, Idaho Falls, ID 83415
D. J. Varacalle Jr
Affiliation:
EG&G Idaho, Inc., P. O. Box 1625, Idaho Falls, ID 83415
L. S. Richardson
Affiliation:
EG&G Idaho, Inc., P. O. Box 1625, Idaho Falls, ID 83415
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Abstract

As part of an effort to determine the feasibility of carbothermic reduction of alumina in plasmas, spatial distributions of temperature, velocity and species in the plume of an argon radio-frequency plasma with alumina and carbon additions were estimated using a two dimensional theoretical model of the flow field and a thermochemical model based on equilibrium conditions. Experimentally determined boundary conditions were input to the models. Using a 30 kW inductively coupled plasma, experimental measurements were made to allow comparison with predictions. A practical process for carbothermic reduction will require prevention of back reactions, either by separation of the aluminum species or by some kind of quenching of the process. The significance of the experimental results and comparisons with predictions are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 38: Symposium F – Plasma Synthesis and Etching of Electronic Materials , 1984 , 35
Copyright
Copyright © Materials Research Society 1985

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