Surfaces, bond types topography

When two different materials are contacted, a complete description of the interaction between them requires understanding the number, type, and distribution of bonds formed. This depends on surface topography and the extent of molecular mixing between the materials. In the following subsections, we classify various types of adhesive bonds. It is beyond the intent of this article to consider all the detailed possibilities, which become apparent from the previous discussion of interface and interphase complexity. Rather, we primarily discuss relatively simple systems, from which general principles may be gleaned. 

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