材料科学
介电常数
复合材料
微波食品加热
碳纳米管
磁导率
电导率
相对介电常数
相对渗透率
纳米管
多孔性
电介质
膜
光电子学
物理
生物
物理化学
量子力学
遗传学
化学
作者
Longjiang Deng,Mangui Han
摘要
The permittivity and permeability behaviors of composites made from the multiwalled carbon nanotubes with magnetic impurity Ni and the wax have been studied in 3–18GHz. The unusual permittivity dispersion behaviors have been explained based on the Cole-Cole model and the conductivity contribution model. Permeability is found to have negative imaginary parts within 3–11GHz. The composites are found to show good microwave absorbing performances (reflection loss <−20dB): matching thickness is 1.5mm and absorbing frequency band is 11.6–12.4GHz, and the absorbing performance can be explained by the “geometrical effect.”
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