Investigation of micro-abrasion characteristics of thin metallic coatings by in-situ SEM scratch test
| Autor: | Oleksiy V. Penkov, Dae Eun Kim, Dong Gap Shin, Chang Lae Kim |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Silicon Scanning electron microscope Mechanical Engineering Metallurgy Composite number chemistry.chemical_element 02 engineering and technology Sputter deposition engineering.material 021001 nanoscience & nanotechnology Copper Industrial and Manufacturing Engineering 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Coating Scratch engineering Nanometre Electrical and Electronic Engineering 0210 nano-technology computer computer.programming_language |
| Zdroj: | International Journal of Precision Engineering and Manufacturing. 17:1139-1147 |
| ISSN: | 2005-4602 2234-7593 |
| DOI: | 10.1007/s12541-016-0138-1 |
| Popis: | The aim of this study was to elucidate the micro-abrasion characteristics of thin metallic coatings through in-situ visualization of the scratch formation process. Pure silver (Ag), pure copper (Cu), and Ag/Cu composite coatings with thicknesses of a few hundred nanometers were deposited on silicon substrates using a magnetron sputtering system. A custom-built pin-on-reciprocator-type tribotester installed inside of a scanning electron microscope (SEM) was utilized to perform the experiments. A single crystal diamond tip was used as the tool in order to represent a hard single asperity. Micro-abrasion mechanisms of the three different coatings were compared by analyzing the friction and scratch characteristics. The friction force measured during the scratch test was directly correlated with the micro-abrasion mechanism. It was found that different chemical and mechanical properties of the coatings led to the formation of different amounts of debris and burrs. Depending on the type of coating, different micro-abrasion mechanisms could be identified. |
| Databáze: | OpenAIRE |
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