【摘 要】
:
Attenuating materials are mainly used for absorbing unwanted electromagnetic energy,which are applied in vacuum electronics,communication and military field
【机 构】
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Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Educati
【出 处】
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The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会)
论文部分内容阅读
Attenuating materials are mainly used for absorbing unwanted electromagnetic energy,which are applied in vacuum electronics,communication and military field.Due to high thermal conductivity and tunable electromagnetic attenuation,cermets have become a promising candidate of absorbing materials.In this paper,we investigated the dielectric and magnetic property of percolative cermets,which were fabricated by in-situ synthesis.The complex permittivity and complex permeability of composites were measured by impedance analyzer in radio frequency.The results show the values of permittivity get enlarged near percolation threshold,which result from the enhancement of interface polarization in composites.
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