Tribology behavior of high-content graphene/nanograined Cu bulk composites from core/shell nanoparticles

被引：27

作者：

Lin, Guangyuan ^{[1
]}

Peng, Yifei ^{[1
]}

Dong, Zhilei ^{[1
]}

Xiong, Ding-Bang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

COMPOSITES COMMUNICATIONS | 2021年 / 25卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Tribology; Cu matrix composites; Graphene; Core; shell structure; Nanostructured bulk; ENHANCED MECHANICAL-PROPERTIES; GRAPHENE OXIDE; COPPER; WEAR; MICROSTRUCTURE; FRICTION; SUPERLUBRICITY;

D O I：

10.1016/j.coco.2021.100777

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Graphene has attracted intensive attention as a new emerging lubricant and additive in composite materials. By consolidating premade Cu@graphene core/shell nanoparticle powder into bulk composites using hot-pressing, nanograined Cu matrix composites reinforced by high-content graphene with a volume fraction >20% are obtained in this work. Their tribology behaviors are studied via the ball-on-plate tests, and the results show that coefficient of friction is significantly reduced from -0.6 to -0.25, and specific wear rate is also decreased. The mechanisms are discussed based on the microstructural evolution of the composites during friction process and the tribology properties of the hot-pressed bulk sample of reduced graphene oxide.

引用

页数：7

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