Influence of tungsten content on microstructure and properties of tungsten-doped graphite-like carbon films
| Autor: | Guozheng Ma, Bin-shi Xu, Hai-dou Wang, Qingsong Yong, Shu-ying Chen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy chemistry.chemical_element 02 engineering and technology Tungsten Sputter deposition Tribology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences carbohydrates (lipids) Carbon film chemistry Mechanics of Materials 0103 physical sciences Surface roughness lipids (amino acids peptides and proteins) General Materials Science Graphite Composite material 0210 nano-technology Carbon |
| Zdroj: | Journal of Materials Research. 31:3766-3776 |
| ISSN: | 2044-5326 0884-2914 |
| DOI: | 10.1557/jmr.2016.433 |
| Popis: | Four types of W-doped graphite-like carbon (W-GLC) films were deposited under different W target currents by magnetron sputtering method. The effects of W content on the microstructure and properties of the W-GLC films were analyzed via various characterization techniques. The results show that the microstructure of the W-GLC films tends to be loose, while the surface roughness distinctly increases with the increase in the W target current. Moderate W-doping can considerably improve the mechanical properties and wear resistance of the film, which will subsequently decrease as the W content becomes excessive. Moreover, the friction coefficient of the W-GLC films does not show a distinct change, but significantly increases when the W target current increases from 0.9 A to 1.2 A. In particular, when the W target current is 0.6 A, the friction coefficient and the wear rate of the W-GLC film are 0.02 and 3.8 × 10−17 m3/N·m, respectively, exhibiting excellent tribological properties. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink