The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles
文献类型：期刊论文
| 作者 | Wang XB(王晓波) ; Liu WM(刘维民)
|
| 刊名 | Tribology Letters
 |
| 出版日期 | 2010 |
| 卷号 | 37页码:381-387 |
| 关键词 | Ni–P nanoparticles Amorphous alloy Friction and wear Lubricant additives |
| ISSN号 | 1023-8883 |
| 通讯作者 | 王李波 |
| 中文摘要 | 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. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | 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) |
| 语种 | 英语 |
| 公开日期 | 2012-09-28 |
| 源URL | [http://210.77.64.217/handle/362003/1076]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang XB,Liu WM. The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles[J]. Tribology Letters,2010,37:381-387. |
| APA | 王晓波,&刘维民.(2010).The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles.Tribology Letters,37,381-387. |
| MLA | 王晓波,et al."The preparation and tribological investigation of Ni–P amorphous alloy nanoparticles".Tribology Letters 37(2010):381-387. |
入库方式： OAI收割
来源：兰州化学物理研究所
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