The beneficial effect of graphene nanofillers on the tribological performance of ceramics

被引：137
作者：
Belmonte, Manuel [1 ]
Ramirez, Cristina [1 ]
Gonzalez-Julian, Jesus [2 ]
Schneider, Johannes [3 ]
Miranzo, Pilar [1 ]
Isabel Osendi, Maria [1 ]
机构：
[1] Inst Ceram & Glass ICV CSIC, Madrid 28049, Spain
[2] Univ Jena, Inst Mat Sci & Technol IMT, D-07743 Jena, Germany
[3] Karlsruhe Inst Technol IAM ZBS, D-76344 Eggenstein Leopoldshafen, Germany
来源：
CARBON | 2013年 / 61卷
关键词：
ELECTRICAL-PROPERTIES; NITRIDE COMPOSITES; CARBON; FRICTION;
D O I：
10.1016/j.carbon.2013.04.102
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The tribological properties of graphene nanoplatelets (GNPs)/Si3N4 composites are investigated for the first time using a reciprocating ball-on-plate configuration under isooctane lubrication. The role of these carbon nanostructures is studied through the analysis of the debris and wear tracks by micro-Raman spectroscopy. GNPs are excellent nanofillers for enhancing the tribological performance of ceramics. Under high contact pressures, GNPs are able to reduce friction and, especially, to increase the wear resistance up to 56% due to the exfoliation of the nanoplatelets that creates an adhered protective tribofilm. These composites are promising for their use in gasoline direct injection systems. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：431 / 435
页数：5
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