Measurement of the dynamic shear modulus of surface layers I. Theory

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Waterman, Herman A. (1984) Measurement of the dynamic shear modulus of surface layers I. Theory. Journal of Colloid and Interface Science, 101 (2). pp. 377-383. ISSN 0021-9797

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Abstract:In measuring the dynamic surface-shear modulus of a surface layer on a liquid, conditions may occur—low-shear modulus and/or high frequencies—which promote wave-propagation effects to play a predominant role. A theory is presented with the help of which the (complex) wave number of the wave in the layer can be expressed in the densities and shear moduli of both the surface layer and the liquid. The theory can also be applied to an interfacial layer between two liquids. It predicts that in practical cases the surface layer can be treated as a massless membrane, up to frequencies of the order of 1 kHz.
Item Type:Article
Copyright:© 1984 Elsevier Science
Link to this item:http://purl.utwente.nl/publications/69338
Official URL:http://dx.doi.org/10.1016/0021-9797(84)90048-1
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