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Simulation of Hybrid Heating

Published online by Cambridge University Press:  15 February 2011

Daniel J. Skamser and
D. Lynn Johnson
Daniel J. Skamser
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
D. Lynn Johnson
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
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Abstract

A hybrid microwave heating arrangement used to heat alumina fiber preforms has been modeled to determine what conditions are needed to create significant differences in temperature across the specimen while still maintaining control of the temperature. The model assumes a uniform external microwave field and dielectric properties for the specimen as a function of temperature. The results of the model show that significant differences in temperature can be attained while still having control of the temperature at the center. Experiments show that the temperature at the center can be held at 1000°C and still allow a difference in temperature of 50°C between the center and the surface of the specimen to be present.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 347: Symposium O – Microwave Processing of Materials IV , 1994, 325
Copyright
Copyright © Materials Research Society 1994

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References

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