与粒径分布有关的混合体有效介电常数  

Effective Permittivity of Dielectric Mixture with Size Distribution

作　　者：叶齐政[1] 李劲[1] 顾温国[1] 齐军[1] 

机构地区：[1]华中理工大学环境科学与工程系

出　　处：《华中理工大学学报》1999年第12期110-112,共3页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金! (59877005)

摘　　要：提出混合二相体的一种新的电路模型，用于计算浸入相具有粒径分布的混合体有效介电常数；该常数与浸入相粒径分布无关而只和总占空比相关的条件是不同粒径的粒子的局部占空比近似相等．In order to calculate the effective permittivity, a new circuit model of two phase dielectric mixture is developed. Reasonable agreements of the results between those by new model and by some existing formula are found, but the new model can be extended to the case when the scatters are with size distribution. The condition that the effective permittivity bears no relation with size distribution is that in the mixture, the local filling factor of the scatters with different sizes is nearly the same.

关 键 词：有效介电常数 混合物 粒径分布 计算模型 

分 类 号：TM21[一般工业技术—材料科学与工程] O482.4[电气工程—电工理论与新技术]