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将Se粉和Nb粉按一定的比例混合,然后密封在石英管中或压成片状后密封于石英管中,加热到一定温度,分别获得了NbSe2纳米纤维和NbSe2纳米颗粒.采用X射线衍射仪(XRD)、透射电子显微镜(TEM)和扫描电子显微镜(SEM)对所得产物进行了表征,分析了其微观形貌;采用MS-T3000摩擦磨损试验机测定了纳米颗粒作为基础润滑油N40添加剂的摩擦学性能.结果表明,制备的纳米纤维直径100～200nm,纳米颗粒直径40～300nm,二者都具有层状结构和良好的结晶性;NbSe2纳米颗粒作为润滑油添加剂具有明显优于基础润滑油的极压减摩性能;同纳米纤维相比,纳米颗粒的减摩性能较好.
The Se powder and Nb powder are mixed in a certain proportion and then sealed in a quartz tube or pressed into a sheet and sealed in a quartz tube and heated to a certain temperature to obtain the NbSe2 nanofibers and the NbSe2 nanoparticles respectively.Using X-ray diffraction The products were characterized by XRD, TEM and SEM. The microstructure of the product was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The nano-particles as the base lubricant N40 additive were determined by MS-T3000 friction and wear tester The results show that the prepared nanofibers have a diameter of 100-200 nm and a diameter of 40-300 nm, both of which have a layered structure and good crystallinity. The NbSe2 nanoparticles have significantly better lubrication as a lubricant additive than a base lubricant Oil extreme pressure antifriction performance; Compared with the nanofiber, the antifriction performance of the nanoparticles is better.