Toward theories of friction and adhesion on quasicrystals

摘要: Abstract It has long been known that quasicrystal surfaces show low sliding friction and adhesion, features have led to practical applications, notably in cookware. Several mechanisms proposed for how quasiperiodicity might result adhesion. These include mechanical characteristics (stiffness hardness), electronic properties, phonon propagation, surface topography at atomic length scales, relatively irrational spacings between the atoms of two (“superlubricity”). Recent work by Park et al. finds an eightfold anisotropy coefficient a decagonal passivated probe. This giant epitomizes single experiment difference periodicity aperiodicity, yet theoretical explanations effect remain controversial.