Control of tribological properties of diamond-like carbon films with femtosecond-laser-induced nanostructuring

✍ Scribed by Naoki Yasumaru; Kenzo Miyazaki; Junsuke Kiuchi

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 504 KB
• Volume: 254
• Category: Article
• ISSN: 0169-4332
• DOI: 10.1016/j.apsusc.2007.09.037

✦ Synopsis

This paper reports tribological properties of diamond-like carbon (DLC) films nanostructured by femtosecond (fs) laser ablation. The nanostructure was formed in an area of more than 15 mm  15 mm on the DLC surface, using a precise target-scan system developed for the fslaser processing. The frictional properties of the DLC film are greatly improved by coating a MoS 2 layer on the nanostructured surface, while the friction coefficient can be increased by surface texturing of the nanostructured zone in a net-like patterning. The results demonstrate that the tribological properties of a DLC surface can be controlled using fs-laser-induced nanostructuring.