ZnS is an effective solid lubricant because its close-packed hexagonal layered structure and low interlayer shear force. In this paper, zinc sulfide films are directly fabricated on zinc substrate through a one-step hydrothermal method. Zinc is used as both zinc source involved in the hydrothermal reaction and the support for zinc sulfide film. The structure and morphology of ZnS film on zinc substrate are characterized by X-ray diffraction and scanning electron microscopy. The friction

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... es of ZnS film in dry sliding were observed. The results showed that ZnS film is composed of micro/nano particles with 0.5 μm, providing effective friction-reducing for the zinc substrate under dry sliding contact.