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Chapter 10

Wetting of Irregular Surfaces

The wetting of irregular solid substrates is greatly influenced by defects such as pores, scratches, capillaries, and chemical inhomogeneities. These are discussed in terms of simple models. True contact angles on rough surfaces can sometimes be obtained by using an atomic-force microscope.

Key Words: fiber balance, goniometer, Jamin effect, notches, pores, scratches, surface roughness, Wenzel equation





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