Interaction of Microwave Magnetic Field with Materials
Microwave is an electromagnetic wave and consists of the electric and the magnetic fields.The microwave electric field interacts with dielectric materials and heat is generated due to the dielectric loss,which is a major mechanism of microwave heating of water.Microwave magnetic field interaction with materials has to be discussed in terms of two different mechanisms.The first class is the induction current generation in(mainly)metallic materials,which gives rise the Joule heat,although the penetration distance into metals are limited within a microns or less.In this article,a characteristic application of microwave induction heating of metal thin film is presented.The second class is the microwave interaction with the ferro(or ferri)magnetic materials.Effect of ferromagnetic resonance(FMR)is taken into consideration as the fundamental heating mechanism of the ferro-magnetic materials.The FMR heating behavior of Fe3O4 is presented.Discussion is made for the phenomena observed in the experiments.
microwave magnetic field heating induction thin film ferro magnetic resonance
Yoshikawa Noboru Tomotsugu Kato Shoji Taniguchi
Graduate School of Environmental Studies.Tohoku University,6-6-02,aza-Aoba,Aramaki,Sendai,Japan Gradaute Student at Tohoku Univeristy
国际会议
The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)
北京
英文
1-4
2012-10-22（万方平台首次上网日期，不代表论文的发表时间）