Nanostructured WS2–Ni composite films for improved oxidation, resistance and tribological performance

摘要: Abstract WS 2 films were prepared by radio frequency sputtering. In order to improve its mechanical properties and oxidation resistance, Ni was used as the dopant effect of content on microstructure, anti-oxidation capability, tribological composite studied energy dispersive X-ray spectroscopy (EDS), photoelectron (XPS), Raman spectroscopy, grazing incidence diffraction (GIXRD), high resolution transmission electron microscope (HRTEM), field emission scanning microscopy (FESEM), nano-indentation tester, scratch tester ball-on-disk tribometer. existed in nanocrystalline 2H–WS structure an amorphous phase. Increasing resulted a microstructural change from columnar platelet pure film fiber-like at low (5.0 at%), featureless (>10 at%). Meanwhile, became more compact showed improved capability. The represented increase hardness with ranging 0 10.3 at% due microstructure being densified, but exhibited brittleness higher than 10 at%. about 5.0 at% much better wear resistance film, brittle had poor resistances above 10.3 at%. –5.0 at% longest life 5.8 × 10 5 cycles sevenfold that humid air. mechanism discussed terms capability films, morphology track formation transfer film.