Microwave field attenuation length and half-power depth in magnetic materials
Document Type
Conference Proceeding
Publication Date
2-28-2011
Department
Department of Materials Science and Engineering
Abstract
The equations for determining microwave field attenuation length and half-power depth in magnetic materials were derived from Maxwell's equations. The microwave field attenuation length and the half-power depth for a magnetite concentrate were calculated and the temperature dependence of them was determined. It is demonstrated the microwave field attenuation length and the half-power depth highly depend on temperature and decrease with increasing temperature up to 900 °C. The variations of field attenuation length and the half-power depth with temperature indicate the microwave power attenuates much faster than the field strength in materials. The evaluations of field attenuation length and microwave half-power depth can be used to characterize the microwave dissipation behaviors in the sample and optimize the dimensions of the material in microwave heating.
Publication Title
TMS Annual Meeting
Recommended Citation
Peng, Z.,
Hwang, J.,
Huang, X.,
Andriese, M.,
&
Bell, W.
(2011).
Microwave field attenuation length and half-power depth in magnetic materials.
TMS Annual Meeting, 51-57.
http://doi.org/10.1002/9781118062081.ch7
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3385