Smoothed particle hydrodynamics study of friction of the coarse-grained α-Al2O3/α-Al2O3 and α-Fe2O3/α-Fe2O3 contacts in behavior of the spring interfacial potential
| Autor: | Ai Isohashi, Le Van Sang, Natsuko Sugimura, Akihiko Yano, Hitoshi Washizu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Friction coefficient
Materials science Mechanical Engineering Normal component 02 engineering and technology Surfaces and Interfaces 021001 nanoscience & nanotechnology Surfaces Coatings and Films Smoothed-particle hydrodynamics Normal load 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Spring (device) Deformation (engineering) Composite material 0210 nano-technology Intensity (heat transfer) |
| Zdroj: | Tribology International. 135:296-304 |
| ISSN: | 0301-679X |
| Popis: | The paper investigates sliding friction of the α-Al2O3/α-Al2O3 and α-Fe2O3/α-Fe2O3 contacts by using the spring interfacial potential. It is found that at micronscale the friction properties of the oxides are almost independent of the coarse-graining and are the same in the different sliding directions. Even the hardness contacts friction coefficient shows a decrease with increasing intensity of the normal component of the interfacial interaction force. This result is as an implementation for the previous observations of sliding friction of various materials that showed that a drop of friction coefficient with increasing externally applied normal load has originated from deformation of interfaces or occurrence of debris at contact, indicating an unsteady contact. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect