... diameters (Snook and van Megan, 1979, 1980, 1981; vanMegan and Snook, 1979, 1981; Kjellander and Marcelja, 1985a,b; Tarazona and Vincente, 1985; Hend-erson and Lozada-Cassou, 1986; Evans and Parry, ... (McClelland, 1989; McClelland and Cohen, 1990). In addition, molecular dynam-ics computer simulations (Schoen et al., 1989; Landman et al., 1990; Thompson and Robbins, 1990;Robbins and Thompson, ... smooth and clean. This is not always easy to achieve, and for this reason only inert, low-energy surfaces, such as hydrocarbon and certain polymeric surfaces, have had their true adhesion forcesand...