Magnetic loss in microwave heating
Document Type
Article
Publication Date
2-1-2012
Abstract
A simplified equation for quantifying magnetic loss in materials under microwave irradiation was derived to demonstrate the importance of magnetic loss in microwave heating. The magnetic losses for five ferrites, namely, BaFe 12O 19, SrFe 12O 19, CuFe 2O 4, CuZnFe 4O 4, and NiZnFe 4O 4 were calculated at 2.45 GHz using the derived equation. It is found that magnetic loss is up to approximately four times greater than dielectric loss in the microwave heating of ferrites. These results, through the calculations, theoretically demonstrate that magnetic dielectric materials are heated much faster in a magnetic field than in an electric field of the microwave applicator. © 2012 The Japan Society of Applied Physics.
Publication Title
Applied Physics Express
Recommended Citation
Peng, Z.,
Hwang, J.,
&
Andriese, M.
(2012).
Magnetic loss in microwave heating.
Applied Physics Express,
5(2).
http://doi.org/10.1143/APEX.5.027304
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12455