| The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles | |
| Department | 固体润滑国家重点实验室 |
王李波; 刘维民 ; 王晓波
| |
| 2010 | |
| Source Publication | Tribology Letters
 |
| ISSN | 1023-8883 |
| Volume | 37Pages:381-387 |
| Abstract | Amorphous Ni–P alloy nanoparticles weresynthesized by chemical reduction of nickel acetate inwater reacted with sodium hypophosphite under stirring.The nanoparticles were characterized by powder X-raydiffraction (XRD), transmission electron microscopy(TEM), and X-ray photoelectron spectroscopy (XPS).Results of XRD and TEM showed that nanoparticles havean average diameter 100 nm. And XPS analysis indicatedthat part of the surface of Ni–P amorphous alloy nano-particles was oxidized. The tribological properties of theprepared Ni–P nanoparticles as an additive in lithiumgrease were evaluated with a four-ball friction and weartester. The worn surfaces of the lubricated GCr15 steelwere analyzed by means of XPS and scanning electronmicroscopy (SEM). The lubricating mechanisms werediscussed on the basis of XPS and SEM analyses of theworn steel surfaces. The results show that these nanopar-ticles as a grease additive can effectively enhance thefriction-reduction and antiwear ability of lithium grease.Tribochemical reactions were involved for steel–steelfrictional pair lubricated with the lithium grease containingamorphous Ni–P alloy nanoparticles, with the formation ofa boundary lubricating and protecting film composed ofadditives of lithium grease and tribochemical reactionproducts (iron phosphate, iron oxides, nickel oxide, nickel, etc.) of the lubricants. This contributes to improve thetribological properties of the lithium grease. |
| Keyword | Ni–p Nanoparticles Amorphous Alloy Friction And Wear Lubricant Additives |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the National Basic Research Program of China (Grant No. 2007CB607606);the National Natural Science Foundation of China in the name of ‘‘Innovative Group Fund’’ (Grant No.50421502) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 空间润滑材料组 ; 工业润滑研究组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1076 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | 王李波 |
| Recommended Citation GB/T 7714 | 王李波,刘维民,王晓波. The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles[J]. Tribology Letters,2010,37:381-387. |
| APA | 王李波,刘维民,&王晓波.(2010).The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles.Tribology Letters,37,381-387. |
| MLA | 王李波,et al."The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles".Tribology Letters 37(2010):381-387. |
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| 2010381-387.pdf（611KB） | 开放获取 | License | View Application Full Text | |||
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