ABSTRACT

Diamond-like carbon (DLC) can be slippery with a frictional coefficient on par with Teflon (e.g. 0.1). Hydrogen terminated DLC may be more slippery than pure carbon DLC, but fluorinated DLC can be super slippery with frictional coefficient less than engine oil (0.01). The fluorinated diamond is actually superhard Teflon that may be named dialon. Diamond has the most extreme properties of all materials. Among them are superhard tribological properties and wear resistance, super fast thermal conductivity and acoustic transmission, super inert chemical properties and corrosion resistance. DLC retains major properties of diamond and it is applicable as coating materials for most substrates. Diamond-like carbon can be coated on a variety of substrates including metals (e.g. steel), polymers (e.g. teflon), and ceramics (e.g. glass). The coating provides certain diamond attributes, such as high wear resistance, low frictional coefficient, and extreme chemical inertness. There are different methods that may produce DLC, each with specific characteristics.