【摘要】 利用水热合成法在相对较低的反应温度（200℃）和较短的反应时间（24h）内合成了MoS₂。采用透射电子显微镜（TEM）、X射线光电子能谱（XPS）和X射线衍射（XRD）分析了合成的纳米MoS₂的结构。同商品MoS₂（平均颗粒直径为3～5μm）进行了摩擦学性能对比,并利用俄歇电子能谱（AES）深度剖析和XPS分析了MoS₂作为润滑剂在钢磨损表面的粘着成膜作用及润滑机理。结果表明,该水热合成的产品具有较商品MoS₂更低的摩擦系数,适合在大载荷、长时间工作状况下使用。更多还原

【Abstract】 M0S2 was prepared by a hydrothermal method at a relatively lower temperature (200℃) and shorter reaction duration(24 h). The resulting product samples were investigated by means of transmission electron microscopy(TEM), X-ray photoelectron spectroscopy(XPS), and X-ray diffraction(XRD). The lubricating behavior of the prepared M0S2 sample as an additive in paraffin oil was examined on an MPX-2000 friction and wear tester. The worn steel surface was analyzed by means of Auger electron spectroscopy(AES) and X-ray photoelectron spectroscopy(XPS) to investigate the lubricating mechanism of the synthetic M0S2 in the paraffin oil. It was found that the synthetic M0S2 as an additive in the paraffin oil showed better friction-reducing and antiwear ability than a commercial M0S2 of a diameter 3 - 5 μm in the same base stock and was more suitable for the situation of beavy load and long time running. MoS2 functioned to reduce the friction and wear of the steel-steel system by forming a transfer film on the worn steel surface but not by tribochemical reaction and diffusion and permeation therewith.更多还原