2016 Volume 33 Issue 4 Article ID: 16-22SE
Ice adhesion to a cooling solid surface, especially, a cooling metal surface, often occurred in various situations. And these ice adhesions sometimes result in a serious accident. Thus, it is essential to clarify phenomenon of ice adhesion, especially, ice adhesion force to a metal surface. The ice adhesion force to the metal surface has been usually measured by acting a shearing force at the interface between the metal surface and ice in a macro-scale, but the measured ice adhesion force is an apparent value including a force to break the ice due to unevenness of the metal surface. In order to measure accurate ice adhesion force without breaking, one of the authors developed the measurement method in a nano-scale using scanning probe microscope (SPM). In this study, the ice adhesion force without breaking on copper surface was measured, varying the surface temperatures, after which validity of the temperature-dependency on the ice shearing stress defined as ice adhesion force per ice adhesion area was investigated by comparing with that on the surface energy of the copper at various temperatures cited in the references and conventional macro-scale results.
