| 摘要 |
An apparatus having a surface in motion relative to the gas continuum, when the apparatus is in use. The surface in motion includes an underlying surface of a material different from material of an extended, homogeneous, nano-smooth coating applied to the underlying surface. The extended nano-smooth coating exhibits slip flow when the surface is in motion relative to the gas continuum and the coating is at least twice as thick as an rms roughness of the underlying surface. As a result, any roughness features of the underlying surface extending through the coating are spaced apart by a lateral distance greater than about three times the mean free path of the gas. |
