Two-dimensional Monte Carlo simulations of structures of a suspension comprised of magnetic and nonmagnetic particles in uniform magnetic fields

被引:22
作者
Peng, Xiaoling [1 ,2 ]
Min, Yong [3 ]
Ma, Tianyu [1 ]
Luo, Wei [1 ]
Yan, Mi [1 ]
机构
[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] China Jiliang Univ, Coll Mat Sci & Engn, Zhejiang Prov Key Lab Magnetism, Hangzhou 310018, Peoples R China
[3] Zhejiang Univ, Ningbo Inst Technol, Ningbo 315100, Zhejiang, Peoples R China
基金
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词
Monte Carlo simulation; Uniform magnetic field; Particle distribution; Chain-like clusters; FERROMAGNETIC PARTICLES; COMPUTER-SIMULATION; FLUID;
D O I
10.1016/j.jmmm.2008.11.011
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The structures of suspensions comprised of magnetic and nonmagnetic particles in magnetic fields are studied using two-dimensional Monte Carlo simulations. The magnetic interaction among magnetic particles, magnetic field strength, and concentrations of both magnetic and nonmagnetic particles are considered as key influencing factors in the present work. The results show that chain-like clusters of magnetic particles are formed along the field direction. The size of the clusters increases with increasing magnetic interaction between magnetic particles, while it keeps nearly unchanged as the field strength increases. As the concentration of magnetic particles increases, both the number and size of the clusters increase. Moreover, nonmagnetic particles are found to hinder the migration of magnetic ones. As the concentration of nonmagnetic particles increases, the hindrance on migration of magnetic particles is enhanced. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1221 / 1226
页数:6
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