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Bi-Pb-Sn-Cd四元合金纳米微粒的制备及其摩擦磨损性能研究
引用本文:陈洪杰,李志伟,胡彬彬,吴志申,张平余,张治军,党鸿辛.Bi-Pb-Sn-Cd四元合金纳米微粒的制备及其摩擦磨损性能研究[J].摩擦学学报,2005,25(2):169-172.
作者姓名:陈洪杰  李志伟  胡彬彬  吴志申  张平余  张治军  党鸿辛
作者单位:1. 河南大学,特种功能材料重点实验室,河南,开封,475001
2. 河南大学,特种功能材料重点实验室,河南,开封,475001;中国科学院兰州化学物理研究所,固体润滑国家重点实验室,甘肃,兰州,730000
基金项目:国家高技术研究发展计划(863计划)
摘    要:通过直接对Bi-Pb-Sn-Cd四元块状合金进行超声分散制备了相应的四元合金纳米微粒;采用X射线衍射仪和热分析仪分析所制备的纳米微粒结构;采用透射电子显微镜考察了纳米颗粒的形貌及尺寸分布;采用四球摩擦磨损试验机考察了纳米颗粒的摩擦学性能.结果表明,所制备的纳米颗粒为低熔点共晶合金纳米微粒,颗粒平均尺寸在10~20 nm之间,其作为润滑油添加剂表现出良好的摩擦学性能.

关 键 词:Bi-Pb-Sn-Cd四元合金  纳米微粒  超声分散  摩擦磨损性能
文章编号:1004-0595(2005)02-0169-04
修稿时间:2004年7月27日

Preparation of Bi-Pb-Sn-Cd Nanoalloy Particles and Its Tribological Properties as an Additive in Liquid Paraffin
CHEN Hong-jie,LI Zhi-wei,HU Bin-bin,WU Zhi-shen,ZHANG Ping-Yu,ZHANG Zhi-jun,DANG Hong-xin.Preparation of Bi-Pb-Sn-Cd Nanoalloy Particles and Its Tribological Properties as an Additive in Liquid Paraffin[J].Tribology,2005,25(2):169-172.
Authors:CHEN Hong-jie  LI Zhi-wei  HU Bin-bin  WU Zhi-shen  ZHANG Ping-Yu  ZHANG Zhi-jun  DANG Hong-xin
Abstract:Bi-Pb-Sn-Cd nanoalloy particles were prepared using sonochemical dispersion method. The morphology, size, and phase composition of the nanoparticles were analyzed by means of X-ray diffraction, differential thermal analysis and thermogravimetric analysis (DTA-TG), and transmission electron microscopy (TEM). The tribological properties of the nanoparticles as an additve in liquid paraffin were evaluated using a four-ball test rig, while the worn steel surface was observed using a scanning electron microscope. It was found that the as-prepared nanoalloy particles had good dispersing ability and composed of spherical crystallines with a size of 10~20 nm. The nanoparticles as the additive in liquid paraffin showed good friction-reducing and antiwear abilities and hence could be used as a good lubricating oil additive.
Keywords:Bi-Pb-Sn-Cd tetra alloy  nanoparticle  sonochemical dispersion  tribological properties
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