| Tribological behaviors of single and dual sol-gel ceramic films on Ti-6Al-4V | |
| Department | 固体润滑国家重点实验室 |
Zhang WG(张文光); Liu WM(刘维民) ; Liu Y(刘盈); Wang CD(王成焘)
| |
| 2009 | |
| Source Publication | Ceramics International
 |
| ISSN | 0272-8842 |
| Volume | 35Pages:1513-1520 |
| Abstract | TiO2, SiO2, hydroxyapatite (HA), TiO2–HA and SiO2–HA thin films with good biocompatibility were grown on Ti–6Al–4V (coded as TC4) substrate by sol–gel and dip-coating processes from specially formulated sols, followed by annealing at 500 8C. The chemical states of some typical elements in the target films were detected by means of X-ray photoelectron spectroscopy (XPS). High-resolution scanning electron microscopy (SEM) is applied to characterize the surface and cross-sectional morphologies of obtained films. Various phases of the films were characterized by XRD. The tribological properties of thin films sliding against an AISI52100 steel ball were evaluated on a reciprocating friction and wear tester. As a result, the target films were obtained. Compared with the TC4 substrate, all the sol–gel ceramic films are superior in resisting wear. Among all, HA film shows the best resistance while SiO2 film shows the worst wear resistance both under higher (3 N) and lower load (1 N). TiO2 shows a good wear resistance under lower load but higher load. Compared with TiO2, the wear resistance of the dual film TiO2–HA can be improved under 3 N but deteriorated under 1 N. Compared with SiO2, the wear resistance of SiO2–HA is improved both under 3 N and 1 N. Compared with HA, the wear resistances of dual films are deteriorated both under 3 N and 1 N. Under 0.5 N, a very long wear life for TiO2–HA is also obtained, illustrating that the lower wear resistance of dual films is closely related to the applied load. SEMobservation of the morphologies of worn surfaces indicates that thewear of TC4 is characterized by abrasivewear. Differently, abrasion, plastic deformation andmicro-crack dominate the wear of ceramic films. The superior friction reduction and wear resistance of HA films are greatly attributed to the slight plastic deformation of the film. Sol–gel is a potential method being applied to implant materials for wear protection according to proper process designs. The single HA film and the dual TiO2–HA film is suggested for biomedical application from the point of view of wear protection. |
| Keyword | A. Sol-gel Process C. friC.ion Thin FIlm Ti-6al-4v Wear |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the National Natural Science Foundation of China (Grant No. 30300078);Medical and Engineering (Science) Cross Research Fund of Shanghai Jiao Tong University (Grant No. YG2007MS17) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 空间润滑材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2018 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Zhang WG(张文光) |
| Recommended Citation GB/T 7714 | Zhang WG,Liu WM,Liu Y,et al. Tribological behaviors of single and dual sol-gel ceramic films on Ti-6Al-4V[J]. Ceramics International,2009,35:1513-1520. |
| APA | 张文光,刘维民,刘盈,&王成焘.(2009).Tribological behaviors of single and dual sol-gel ceramic films on Ti-6Al-4V.Ceramics International,35,1513-1520. |
| MLA | 张文光,et al."Tribological behaviors of single and dual sol-gel ceramic films on Ti-6Al-4V".Ceramics International 35(2009):1513-1520. |
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| File Name/Size | DocType | Version | Access | License | ||
| 20091513-1520.pdf（1907KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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