作　　者： ; ; ; ; ;

机构地区： 河南大学

出　　处： 《润滑与密封》 2006年第9期21-23,共3页

摘　　要： 用超声分散法制备了球形与树枝状铋纳米晶体;用电子显微镜考察了样品的形貌及树枝状纳晶的生长方向,用XRD研究了其晶型与结构,并提出了可能的反应机制;最后用四球试验机考察了其用作润滑油添加剂的摩擦学性能。结果表明:这种纳米粉末用作润滑油添加剂具用良好的抗磨性能。 Spherical and dendritic Bi nanocrystals were prepared by ultrasonic dispersion method. The morphology, growing direction, crystal shape of the sample were studied by transmission electron microscopy （ TEM ） , high-resolution TEM （ HRTEM ）, electron diffraction （ ED）, X-ray diffraction （ XRD）, respectively. The possible growing mechanism was proposed. Result shows that the powders have an excellent antiwear property as lubricating oil additive by tribological test.

关 键 词： 铋 超声波 纳米晶体 抗磨

领　　域： [机械工程]