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Título: | High graphene fillers content for improving the tribological performance of silicon nitride-based ceramics |
Autor: | Llorente, Javier; Ramírez, Cristina CSIC ORCID; Belmonte, Manuel CSIC ORCID | Palabras clave: | Ceramic-matrix composites Graphene Sliding friction Sliding wear Wear testing |
Fecha de publicación: | 10-may-2019 | Editor: | Elsevier BV | Citación: | Wear 430-431: 183- 190 (2019) | Resumen: | The effect of large graphene nanoplatelets (GNPs) additions on the friction and wear of silicon nitride (Si3N4) ceramics is evaluated under isooctane lubrication. All Si3N4/GNPs composites, with up to 20.6 vol% of graphene fillers, exhibit better tribological response than Si3N4, in particular, a 50% reduction in the friction that continuously decreases with the GNPs content is attained, jointly with an improvement in the wear resistance of up to 63%. The survival of a self-lubricant carbon-rich tribolayer formed on the worn surfaces controls the tribological properties of the materials. Si3N4/GNPs composites are promising materials to enhance the performance of gasoline direct injection systems. | Versión del editor: | http://dx.doi.org/10.1016/j.wear.2019.05.004 | URI: | http://hdl.handle.net/10261/240339 | DOI: | 10.1016/j.wear.2019.05.004 | ISSN: | 0043-1648 |
Aparece en las colecciones: | (ICV) Artículos |
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Llorente_High_WEAR-Si3N4-GNPs_isooctane_postprint.pdf | 2,18 MB | Adobe PDF | Visualizar/Abrir |
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