Packing Effect of Excluded Volume on Hard-Sphere Colloids  

作　　者：XIAO Chang-Ming JIN Guo-Jun Ma Yu-Qiang 肖长明;金国钧;马余强(National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093)

机构地区：[1]National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093

出　　处：《Chinese Physics Letters》2001年第7期950-952,共3页中国物理快报（英文版）

基　　金：Supported by the China Outstanding Young Foundation under Grant No.19925415;the National Natural Science Foundation of China under Grant No.19847003;the iCClimbing Projectof the Ministry of Science and Technology of China.

摘　　要：We apply the principle of maximum entropy to consider the excluded volume effect on the phase separation of binary mixtures consisting of hard spheres with two different diameters.We show that a critical volume fraction of hard spheres exists locating the packing of large spheres.In particular,through numerical calculation,we have found that the critical volume fraction becomes lower when the ratioα=σ1/σ2 of large-to-small sphere diameters increases,but becomes higher when the ratio of the large sphere volume fraction to the total volume fraction of large and small spheres increases.

关 键 词：DIAMETERS SPHERES locating 

分 类 号：Z89[文化科学]