Synthesis and Quantitative Characterization of Novel Copper-Graphite Composite Materials for Use as Electrical Sliding Contacts
| Autor: | O. Lott, Gerhard Schneider, A. Nagel, G. Guth, M. Klement |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Metals and Alloys Brush chemistry.chemical_element 02 engineering and technology Tribology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 030226 pharmacology & pharmacy Copper Electronic Optical and Magnetic Materials law.invention Characterization (materials science) 03 medical and health sciences 0302 clinical medicine chemistry Mechanics of Materials law Graphite Composite material 0210 nano-technology Porosity Triboelectric effect |
| Zdroj: | Practical Metallography. 52:21-37 |
| ISSN: | 2195-8599 0032-678X |
| DOI: | 10.3139/147.110327 |
| Popis: | This work presents quantitative microstructures and triboelectric properties of melt-infiltrated copper-graphite composites which are characterized by a specific structural composition. It compares them with commercially available carbon brush material. The structural design requires the synthesis of open porous graphite preforms. This work reports on advances in the powder preparation and the production of composites by means of direct squeeze casting. A specially developed tribo-electric testing device is presented. It is used to simultaneously test tribological, thermal, as well as electrical influences. |
| Databáze: | OpenAIRE |
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