论文部分内容阅读
将钼粉与升华硫和硒粉的混合粉末按一定化学计量比混合,通过固相反应法成功制备出了均匀的片状纳米颗粒。分别使用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)以及透射电子显微镜(TEM)对该纳米粉体进行结构表征和分析,发现该粉体为MoS2/MoS1.5Se0.5混合晶相,晶粒尺寸在300~600 nm,厚度约为5 nm的片状结构。将该MoS2/MoS1.5Se0.5纳米片作为润滑油添加剂添加到基础油中,使用UMT-2型摩擦磨损试验机对其摩擦学性能进行测试,并对摩擦机理进行了解释,结果表明MoS2/MoS1.5Se0.5纳米片作为润滑油添加剂具有良好的减摩抗磨性能。
The mixed powder of molybdenum powder and sublimated sulfur and selenium powder is mixed according to a certain stoichiometric ratio and a uniform flaky nanoparticle is successfully prepared by a solid phase reaction method. The nanosized powders were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) respectively. The results showed that the powders were MoS2 / MoS1.5Se0.5 mixed crystal phases , A grain size of 300 ~ 600 nm, a thickness of about 5 nm sheet structure. The MoS2 / MoS1.5Se0.5 nanosheets were added to the base oil as a lubricant additive. The tribological properties of the MoS2 / MoS1.5Se0.5 nanosheets were tested using a UMT-2 friction and wear tester. The friction mechanism was also explained. The results showed that the MoS2 / MoS1.5Se0.5 nano-sheet as a lubricant additive has good anti-friction and anti-wear properties.