In some electronic devices with miniature systems, such as Microelectromechanical systems (MEMS) or Nanoelectromechanical systems (NEMS), amorphous DLC coatings are widely applied to protect functional thin films from mechanical wear and chemical corrosion. The magnetic storage hard disk is a typical MEMS system where tribology is a critical subject. Heat Assisted Magnetic Recording (HAMR) is taken as the technology for the next-generation magnetic storage devices. In HAMR drives, a laser beam heats the local disk media above the curie temperature to reduce the coercivity so that the data can be written in a smaller region. Thermal durability of the materials is a big challenge for HAMR. The research focuses on effects of such an elevated temperature on mechanical and tribological behaviors of the media thin films and coatings.