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

应用科学学报 ›› 1998, Vol. 16 ›› Issue (1): 24-31.

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

庞乾骏

上海交通大学

收稿日期:1996-05-13 修回日期:1996-09-16 出版日期:1998-03-31 发布日期:1998-03-31
作者简介:庞乾骏:教授,上海交通大学应用物理系,上海 200030

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

PANG QIANJUN

Applied Physics Depertment, Shanghai Jiaotong University, Shanghai 200030

Received:1996-05-13 Revised:1996-09-16 Online:1998-03-31 Published:1998-03-31

摘要/Abstract

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.

关键词: 粒子尺度效应, 临界阈值, 连续逾渗模型

Abstract: 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.

Key words: effect of particle size, continuum percolation model, critical threshould

庞乾骏. 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[J]. 应用科学学报, 1998, 16(1): 24-31.

PANG QIANJUN. A Continuum Percolation Model of Cubic Particles for Dispersed Ionic Conductor The Effects of Particle Size on Critical Threshould and Conductivity[J]. Journal of Applied Sciences, 1998, 16(1): 24-31.