Tribological properties of nano-calcium borate as lithium grease additive | |
Department | 固体润滑国家重点实验室 |
Zhao GQ(赵改青)1,2; Zhao Q(赵勤)1,2; Li WM(李维民)1; Wang XB(王晓波)1; Liu WM(刘维民)1; Liu WM(刘维民) | |
2014 | |
Source Publication | Lubrication Science |
ISSN | 0954-0075 |
Volume | 26Issue:1Pages:43-53 |
Abstract | Nano-calcium borate (NCB) with an average particle size of about 70 nmwas synthesised via ethanol supercritical fluid drying technique, and the morphology and microstructures of as-prepared particles were characterised by means of scanning electron microscope (SEM, JEOL LTD., Tokyo, Japan) and X-ray powder diffraction. The friction and wear behaviour of the NCB as additive in lithium grease were evaluated with an Optimol-SRV IV (Optimol Instruments Prüftechnik GmbH, Munich, Germany) oscillating friction and wear tester (SRV tester). The morphology and surface composition of the worn surfaces of lower discs after SRV test were analysed by SEM and X-ray photoelectron spectroscopy (XPS, Physical Electronics, Inc., USA). The result demonstrated that the anti-wear and load-carrying capacities of the lithium grease were significantly improved, and the friction coefficient of the lithium grease decreased with the addition of NCB additive. The analytical results of XPS indicate that the good tribological performance of NCB is attributable to the formation of a boundary lubrication film composed of deposited NCB and the tribochemical reaction products such as B2O3, CaO and iron oxides on the rubbing surface. |
Keyword | Nano-calcium Borate Anti-wear Additive Load Carrying Lithium Greases |
Subject Area | 材料科学与物理化学 |
DOI | 10.1002/ls.1227 |
Funding Organization | the National 973 Program of China (Grant No. 2011CB706603) |
Indexed By | SCI |
If | 1.031 |
Language | 英语 |
Funding Project | 工业润滑研究组;空间润滑材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/6920 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Liu WM(刘维民) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
Recommended Citation GB/T 7714 | Zhao GQ,Zhao Q,Li WM,et al. Tribological properties of nano-calcium borate as lithium grease additive[J]. Lubrication Science,2014,26(1):43-53. |
APA | Zhao GQ,Zhao Q,Li WM,Wang XB,Liu WM,&刘维民.(2014).Tribological properties of nano-calcium borate as lithium grease additive.Lubrication Science,26(1),43-53. |
MLA | Zhao GQ,et al."Tribological properties of nano-calcium borate as lithium grease additive".Lubrication Science 26.1(2014):43-53. |
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Lubrication Science (2005KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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