Polytetrafluoroethylene Scratch Treatment Tungsten Inorganic_Compound PMNPT FrictionForce Chemical Vapor Deposition Ni81Fe19 self_healing Vacuum dielectric trench LateralPFM temp_control Phase PtfeFilter IRDetector Sulfur ThermalProperties China Vac Foil DeflectionOptics Granada SFAs light_emitting semifluorinated alkane polyvinyl acetate hydrocarbon cannabidiol Pore TappingMode ConductiveAFM HardDisk Gold