Diamond-like carbon (DLC) can be lubricious with a frictional coefficient comparable to Teflon (e.g. 0.1). Hydrogen terminated DLC may be more lubricious than pure carbon DLC, but fluorinated DLC can be super lubricious with frictional coefficient less than engine oil (0.01). The fluorinated diamond is actually superhard Teflon that may be named dialon. Dialon is not only virtually frictionless, it is also super hydrophobic, more so than even lotus leaves. In fact, if dialon is coated onto heart valves, it will not accumulate platelets as other artificially made part will do.