| 离子型磁性液体中纳米微粒间相互作用研究 |
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| 引用本文： | 白浪.离子型磁性液体中纳米微粒间相互作用研究[J].四川理工学院学报(自然科学版),2010,23(2):235-237. |
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| 作者姓名： | 白浪 |
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| 作者单位： | 攀枝花学院材料工程学院,四川,攀枝花,617000 |
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| 摘 要： | 用磁偶极子硬球模型对磁性液体中磁性纳米微粒间相互作用进行了研究。分析表明,微粒间存在着静电排斥、静磁吸引和Van der Waals吸引三种相互作用,无外场时静磁作用非常微弱,可以忽略,静电排斥力作用距离远,起抗团聚作用,Van der Waals作用距离短,是引起团聚主要原因。为确保磁性液体稳定性,制备的离子型磁性液体体积分数应小于5%。
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| 关 键 词： | 磁偶极子硬球模型 相互作用 稳定性 |
Study of the Interaction Between Nano-particles in Ionic Ferrofluids |
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| BAI Lang.Study of the Interaction Between Nano-particles in Ionic Ferrofluids[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2010,23(2):235-237. |
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| Authors: | BAI Lang |
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| Institution: | BAI Lang(School of Material Engineering,Panzhihua University,Panzhihua 617000,China) |
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| Abstract: | The interaction between two magnetic nanoparticles in ionic ferrofluids has been studied with magnetic dipole hard sphere model.Analysis showed that there are three kinds of interaction between particles: electrostatic repulsion,magnetic attraction and Van der Waals attraction.The magnetic attraction is very weak without external magnetic field,and can be ignored.The action range of electrostatic repulsion is long and played the role of anti-aggregation,The distance of Van der Waals attraction is short and ... |
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| Keywords: | magnetic dipole hard sphere model interaction stability |
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