Low wear and friction of nanometer-thick Ag layers on Si(1Â 1Â 1) surfaces

The observed results indicated that the atomic force between surface atoms, especially diamond CAg chemical bond, Ag(1 1 1) interlayer bonding force, and also the orientation of the sliding planes strongly reflect to the friction force, in addition to the asperity of the surface. A sliding mechanism of very thin layers of Ag film of very low wear and friction is discussed.