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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhang, Meng Mo, Ji Liang Xu, Jing Ye Zhang, Xin Wang, Dong Wei Zhou, Zhong Rong |
| Copyright Year | 2017 |
| Abstract | The contact characteristic between finger and objects changes due to the different deformation of a fingerprint when the finger slides in different directions. To understand this mechanism better, a new type of experimental setup was designed, and specific tests were conducted. We analyzed the regularity of the friction coefficient in two sliding directions. When the finger was sliding on surfaces with different roughness values, normal forces, and contact angles, the fingerprint deformation was captured by the Asana microscope. The following were inferred from the conducted experiments. Firstly, the friction coefficient decreases with increasing sample roughness and normal force. Secondly, the friction coefficient first decreases and then increases with increasing contact angle. Thirdly, the distance between the fingerprints increases when the finger is dragged, leading to an increase in contact area, thereby improving the friction coefficient. Finally, the result will be opposite to the previous inference when the finger is squeezed hard for fingerprinting. |
| Starting Page | 1 |
| Ending Page | 9 |
| Page Count | 9 |
| File Format | |
| ISSN | 10238883 |
| Journal | Tribology Letters |
| Volume Number | 65 |
| Issue Number | 2 |
| e-ISSN | 15732711 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2017-03-31 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | New setup Finger friction Roughness Normal load Contact angle Fingerprints Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics Physical Chemistry Nanotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces |
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