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逾渗理论是处理强无序和具有随机几何结构系统常用的理论方法之一,为描述空间分布的随机过程,提供一个明确、清晰、直观的模型。本文系统地阐述了逾渗理论的中心内容(即在逾渗阈值处系统的物理性质会发生尖锐的变化)、基本特点;以导电复合材料体系为例分析总结了8种逾渗模型的特点;概述了逾渗理论的应用领域,并展望了其发展前景。
Percolation theory is one of the commonly used theoretical methods for dealing with strong disorder and random geometric structures. It provides a clear, clear and intuitive model for describing stochastic processes of spatial distribution. This paper systematically expounds the central content of the percolation theory (that is, sharp changes in the physical properties of the system at the percolation threshold) and its basic characteristics. The characteristics of the eight percolation models are summarized and analyzed with the conductive composite system as an example. The application of percolation theory is outlined, and its development prospects are prospected.