Tribological performance of alumina matrix composites reinforced with nickel-coated graphene

被引:21
|
作者
Wozniak, J. [1 ]
Cygan, T. [1 ]
Petrus, M. [1 ]
Cygan, S. [2 ]
Kostecki, M. [1 ]
Jaworska, L. [3 ]
Olszyna, A. [1 ]
机构
[1] Warsaw Univ Technol, Fac Mat Sci & Engn, Ul Woloska 141, PL-02507 Warsaw, Poland
[2] Inst Adv Mfg Technol, Ul Wroclawska 37A, PL-30011 Krakow, Poland
[3] AGH Univ Sci & Technol, Fac Nonferrus Met, A Mickiewicza Av 30, PL-30059 Krakow, Poland
关键词
Sintering; Composites; Wear resistance; Al2O3; MECHANICAL-PROPERTIES; WEAR BEHAVIOR; OXIDE;
D O I
10.1016/j.ceramint.2018.02.204
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
This paper discusses the effect of modified multilayer graphene nanoplatelets (MLG-Ni-P) and unmodified multilayer graphene nanoplatelets (MLG) addition on the tribological properties of alumina matrix composites. The composites were prepared by powder metallurgy processing using Spark Plasma Sintering to consolidate the powders. The effect of the coated graphene addition on the strength properties was evaluated. Furthermore, the relative density, fracture toughness and tribological properties were investigated. The lowest wear rates (0.1 mm(3)/Nm for Al2O3-2 vol% Gn), despite lower mechanical properties (4.1 MPa m(.5) for Al2O3-2 vol% Gn), were observed for composites reinforced with uncoated graphene. Moreover, the threshold volume of graphene addition was specified to achieve high tribological properties of composites.
引用
收藏
页码:9728 / 9732
页数:5
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