Measurement of inter-particle forces by an interfacial force microscope

被引：11

作者：

Huang, Qing ^{[1
]}

Mesbah-Nejad, Asghar ^{[2
]}

Tadayyon, Seyed M. ^{[3
]}

Norton, Peter ^{[3
]}

Zhang, Hui ^{[1
]}

Zhu, Jesse ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Chem & Biochem Engn, Particle Technol Res Ctr, London, ON N6A 5B9, Canada

[2] Univ Western Ontario, Dept Elect & Comp Engn, London, ON N6A 5B9, Canada

[3] Univ Western Ontario, Dept Chem, London, ON N6A 5B9, Canada

来源：

PARTICUOLOGY | 2010年 / 8卷 / 05期

关键词：

Inter particle forces; van der Waals force; Interfacial force microscope; Fine powder; INTERPARTICLE FORCES; FLUIDIZATION; ADHESION; POWDERS; BEHAVIOR; FLOW; AFM;

D O I：

10.1016/j.partic.2010.05.011

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An interfacial force microscope (IFM) was employed to measure the inter-particle forces between two individual glass beads with diameters varying from 8 to 20 mu m With the feedback function of IFM turned off attractive forces were obtained The forces varied in the range of 0 1-0 34 mu N and their validity was confirmed by a theoretical analysis of the van der Waals force between the same glass beads With the feedback function switched on no attractive forces between particles were detected by the IFM when the probe approached the sample substrate This may be attributed to the dramatic change of the attractive forces within a very short separation distance and/or the relatively poor signal-to-noise ratio of the IFM (C) 2010 Chinese Society of Particuology and Institute of Process Engineering Chinese Academy of Sciences Published by Elsevier B V All rights reserved

引用

页码：400 / 406

页数：7

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