Tribological characteristics of gold films deposited on metals by ion plating and vapor deposition
| Autor: | Talivaldis Spalvins, Donald H. Buckley, Kazuhisa Miyoshi |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Materials science
Ion plating Alloy Surfaces and Interfaces Substrate (electronics) Chemical vapor deposition Tribology engineering.material Condensed Matter Physics Indentation hardness Surfaces Coatings and Films X-ray photoelectron spectroscopy Mechanics of Materials Materials Chemistry engineering Thin film Composite material |
| Zdroj: | Wear. 108:169-184 |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/0043-1648(86)90095-5 |
| Popis: | Recent work on the graded interface between an ion-plated film and a substrate is discussed as well as the friction and wear properties of ionplated gold. X-ray photoelectron spectroscopy, depth profiling and microhardness measurements were used to investigate the interface. The friction and wear properties of ion-plated and vapor-deposited gold films were studied both in an ultrahigh vacuum system to maximize adhesion and in oil to minimize adhesion. The results of the investigation indicate that the solubility of gold in the substrate material controls the depth of the graded interface. Thermal and chemical diffusion mechanisms are thought to be involved in the formation of the Au-Ni interface. In the Fe-Au graded inter- face, gold was slightly dispersed in the iron and formed only a physically bonded interface. The hardness of the gold film was influenced by the thickness and was also related to the composition gradient between the gold and the substrate. A graded Ni-Au interface exhibited the highest hardness because of an alloy hardening effect. The effects of film thickness on adhesion and friction were established. A minimum coefficient of friction was found in the thin film region. No graded interfaces were detected in this investigation between vapor-deposited gold films and substrates. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|