title: Thermal interface resistance: crossover from nanoscale to macroscale.
abstract: In a recent work Gotsmann and Lantz have observed that the thermal interface conductivity for a nano-sized nominal contact area is proportional to the normal contact pressure in a wide pressure range, with a prefactor which is typically ~10(3) higher than observed for the same materials at the macroscale. Here I discuss the cross-over from the nanoscale to the macroscale. I show that for macroscopic solids the spreading resistance will dominate the interfacial resistance in most cases.
authors.forename: Bo N J
authors.initials: BN
authors.lastname: Persson
mesh_terms: D004574:Electromagnetic Fields; D046911:Macromolecular Substances / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D011312:Pressure; D013314:Stress, Mechanical; D013499:Surface Properties; D013500:Surface Tension; D013696:Temperature; D013814:Thermal Conductivity
chemical_list: D046911:Macromolecular Substances