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Microwave Firing At 915 MHz - Efficiency and Implications

Published online by Cambridge University Press:  10 February 2011

N. G. Evans  and
M. G. Hamlyn
N. G. Evans
Affiliation:
School of Engineering, Staffordshire University, Stafford, UK, ST18 0AD
M. G. Hamlyn
Affiliation:
School of Engineering, Staffordshire University, Stafford, UK, ST18 0AD
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Abstract

The conversion efficiency of electrical to microwave power by magnetrons operating at 896 / 915 MHz is significantly greater than that of magnetrons operating at 2.45 GHz. The increased efficiency at this frequency improves the prospects of microwave firing being adopted as a commercially viable process but the change in frequency alters the microwave-material interactions that take place.

This paper discusses the influence and implications of using 896 / 915 MHz for firing ceramics and compares dielectric property data at both frequencies. The results suggest that using the lower frequency will result in more efficient heating.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 430: Symposium O – Microwave Processing of Materials V , 1996 , 9
Copyright
Copyright © Materials Research Society 1996

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References

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