Mechanics of particle adhesion
Mechanics of particle adhesion
复制标题
颗粒粘附力学
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
R. Bowen
中科院分区：
文献类型：
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作者：
D. Rimai;L. Demejo;R. Bowen
颗粒与表面的粘附伴随着由粘附力引起的应力引起的材料变形。这些变形可以是材料对应力的弹性、非线性弹性、粘弹性或塑性响应的结果，可以显著影响从基材上去除颗粒所需的力。本文讨论了微米级颗粒与各种基体之间的粘接变形的机理。给出了由附着力引起的弹性和塑性变形的实例。根据各种粘附理论对实验结果进行了分析，在一定情况下，这些理论允许计算接触固体的粘附热力学功。讨论了这些理论的有效范围及其预测。最后，粘连引起的变形，目前还不能解释在这些理论提出。
The adhesion of particles to surfaces is accompanied by deformations of the materials arising from adhesion force-induced stresses. These deformations, which can be the result of an elastic, a nonlinear elastic, a viscoelastic, or a plastic response of the materials to the stresses, can significantly affect the forces needed to remove the particles from the substrate. The mechanics of adhesion-induced deformations between micrometer-size particles and various substrates are discussed in this paper. Examples of elastic and plastic deformations resulting from the adhesion forces are presented. The experimental results are analyzed in terms of various adhesion theories, which, under certain circumstances, permit the calculation of the thermodynamic work of adhesion for contacting solids. The ranges of validity of these theories and their predictions are discussed. Finally, adhesion-induced deformations which are not currently explicable in terms of these theories are presented.