掺杂离子导体粒子连续逾渗模型──系统临界点阈值和电导率的粒子尺度效应  

A Continuum Percolation Model of Cubic Particles for Dispersed Ionic Conductor The Effects of Particle Size on Critical Threshould and Conductivity

作　　者：庞乾骏[1] 

机构地区：[1]上海交通大学

出　　处：《应用科学学报》1998年第1期24-31,共8页Journal of Applied Sciences

摘　　要：对于掺杂离子导体（ＤＩＣ），由立方粒子广义晶格模型过渡到立方粒子连续交叠模型，找到在粒子连续交叠条件下的浓度和密度的关系式．采用连续逾渗模型和有效介质近似（ＦＭＡ）研究了粒子尺度对于系统临界点阈值和电导率的影响．A continuum overlapping model of cubic particles is introduced based on ge neralized lattice model of discrete overlapping particles for the dispersed ionic conductors. By using this model, the relationship between the concentration and the density of DIC system is found out. With the effective medium approximation(EMA), the effects of the particle size on the critical threshould and condutivity are studied and discussed.

关 键 词：粒子尺度效应 连续逾渗模型 掺杂离子导体 

分 类 号：TM24[一般工业技术—材料科学与工程]