用有效介质近似法估算多孔介质的配位数

Estimation of Coordination Number of Porous Media by Effective Medium Approximation

从Ｋｉｒｋｐａｔｒｉｃ的有效介质近似理论出发，推导出了适用于计算双分散多孔体系配位数的有效介质近似模型。并结合扩散实验数据，求得了双分散多孔介质在不同条件下的配位数。结果表明，用该方法得到的配位数基本上不随扩散组分及实验温度而变，这和理论分析是一致的。

According to Kirkpatric′s effective medium approximation, effective medium model is derived for calculating the coordination number of bidisperse systems. Using experimental data of diffusivity, the coordination number of bidisperse systems in different conditions is obtained. The results show that the coordination number obtained by this method doesn′t vary with diffusional components and temperatures, which is in fit with the theoretical analysis.