Graphene-Based Engine Oil Nanofluids for Tribological Applications

被引:376
作者
Eswaraiah, Varrla [1 ,2 ]
Sankaranarayanan, Venkataraman [2 ]
Ramaprabhu, Sundara [1 ]
机构
[1] Indian Inst Technol, Alternat Energy & Nanotechnol Lab, Nanofunct Mat Technol Ctr NFMTC, Madras 600036, Tamil Nadu, India
[2] Indian Inst Technol, Low Temp Phys Lab, Dept Phys, Madras 600036, Tamil Nadu, India
关键词
graphene; solar exfoliation; frictional coefficient; antiwear; tribology; GRAPHITE; SHEETS; OXIDE; NANOPARTICLES; PERFORMANCE; FRICTION; FORCES;
D O I
10.1021/am200851z
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Ultrathin graphene (UG) has been prepared by exfoliation of graphite oxide by a novel technique based on focused solar radiation. Graphene based engine oil nanofluids have been prepared and their frictional characteristics (PC), antiwear (AW), and extreme pressure (EP) properties have been evaluated. The improvement in PC, AW, and EP properties of nanofluids is respectively by 80, 33, and 40% compared with base oil. The enhancement can be attributed to the nanobearing mechanism of graphene in engine oil and ultimate mechanical strength of graphene.
引用
收藏
页码:4221 / 4227
页数:7
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