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Enachescu M. van den Oetelaar R.J.A. Carpick R.W. Ogletree D.F. Flipse C.F.J. Salmeron M. 《Tribology Letters》1999,7(2-3):73-78
The nanotribological properties of a hydrogen‐terminated diamond(111)/tungsten‐carbide interface have been studied using ultra‐high
vacuum atomic force microscopy. Both friction and local contact conductance were measured as a function of applied load. The
contact conductance experiments provide a direct and independent way of determining the contact area between the conductive
tungsten‐carbide AFM tip and the doped diamond sample. We demonstrate that the friction force is directly proportional to
the real area of contact at the nanometer‐scale. Furthermore, the relation between the contact area and load for this extremely
hard heterocontact is found to be in excellent agreement with the Derjaguin–Müller–Toporov continuum mechanics model.
This revised version was published online in September 2006 with corrections to the Cover Date. 相似文献
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