Tribological properties of copper matrix composites reinforced with homogeneously dispersed graphene nanosheets

doi:10.1016/j.jmst.2018.02.010

Abstract

Abstract:

Graphene reinforced copper matrix composites (Gr/Cu) were fabricated by electrostatic self-assembly and powder metallurgy. The morphology and structure of graphene oxide, graphene oxide-Cu powders and Gr/Cu composites were characterized by scanning electronic microscopy, transmission electronic microscopy, X-ray diffraction and Raman spectroscopy, respectively. The effects of graphene contents, applied loads and sliding speeds on the tribological behavior of the composites were investigated. The results indicate that the coefficient of friction of the composites decreases first and then increases with increasing the graphene content. The lowest friction coefficient is achieved in 0.3 wt% Gr/Cu composite, which decreases by 65% compared to that of pure copper. The coefficient of friction of the composite does not have significant change with increasing the applied load, however, it increases with increasing the sliding speed. The tribological mechanisms of the composite under different conditions were also investigated.

Key words: Graphene nanosheets, Copper matrix composites, Tribological properties, Microstructure

Xin Gao, Hongyan Yue, Erjun Guo, Shaolin Zhang, Longhui Yao, Xuanyu Lin, Bao Wang, Enhao Guan. Tribological properties of copper matrix composites reinforced with homogeneously dispersed graphene nanosheets[J]. J. Mater. Sci. Technol., 2018, 34(10): 1925-1931.

Figures/Tables 10

Fig 1. Schematic depicting of pin-on-disk fiction test.

Fig. 2. Characterizations of the GO and GO-Cu powders: (a) SEM image of GO, (b) XRD patterns of pristine graphite and GO, (c) Raman spectroscope of GO, (d) SEM image of pure Cu powders, (e) SEM image of GO-Cu powders, (f) magnified image of Fig. 2(e).

Fig. 3. Characterizations of the Gr/Cu composite: (a) photos of GO-Cu powders and Gr/Cu composite wear sample, (b) SEM image of 0.3 wt% Gr/Cu composite, (c) XRD patterns of Cu and Gr/Cu composite, (d) TEM image of 0.3 wt% Gr/Cu composite, (e) HRTEM image of 0.3 wt% Gr/Cu composite.

Fig. 4. Hardness and tribological properties of the Gr/Cu composite with different graphene contents: (a) Vickers hardness, (b) coefficient of friction, (c) mass loss.

Fig. 5. SEM micrographs of worn surfaces of the Gr/Cu composites with different graphene contents: (a, b) pure copper, (c, d) 0.1 wt% Gr/Cu composite, (e, f) 0.3 wt% Gr/Cu composite, (g, h) 0.5 wt% Gr/Cu composite.

Fig. 6. SEM micrograph of surface and fracture morphology of the 0.5 wt% Gr/Cu composite: (a) surface morphology, (b) fracture morphology.

Fig. 7. Tribological properties of the 0.3 wt% Gr/Cu composite under different applied loads: (a) coefficient of friction, (b) mass loss.

Fig. 8. SEM micrographs of the 0.3 wt% Gr/Cu composite under different applied loads: (a, b) 10 N, (c, d) 15 N, (e, f) 20 N, (g, h) 25 N.

Fig. 9. Tribological properties of the 0.3 wt% Gr/Cu composite under different sliding speeds: (a) coefficient of friction, (b) mass loss.

Fig. 10. SEM micrographs of the 0.3 wt% Gr/Cu composite under different sliding speeds: (a, b) 120 r/min, (c, d) 240 r/min, (e, f) 480 r/min.

References

[1]	B. Kong, J. Ru, H. Zhang, T. Fan, J. Mater, Sci. Technol. 34 (2018), .
[2]	G.A. Bagheri, J. Alloys Compd. 676(2016) 120-126.
[3]	N.B. Dhokey, R.K. Paretkar, Wear 265 (2008) 117-133.
[4]	S.G. Sapate, A. Uttarwar, R.C. Rathod, R.K. Paretkar, Mater. Des. 30(2009)376-386.
[5]	D. Gu, H. Wang, D. Dai, P. Yuan, W. Meiners, R. Poprawe, Scr. Mater. 96(2015)25-28.
[6]	H.Y. Yue, B. Wang, X. Gao, S.L. Zhang, X.Y. Lin, L.H. Yao, E.J. Guo, J. AlloysCompd. 692(2017) 395-402.
[7]	J. Mirazimi, P. Abachi, K. Purazrang, Acta Metall. Sin. (Engl. Lett.) 29(2016)1169-1176.
[8]	P. Zhang, J. Jie, Y. Gao, H. Li, Z. Cao, T. Wang, T. Li, Mater. Sci. Eng. A 642 (2015)398-405.
[9]	K.S. Novoselov, A.K. Geim, S.V. Morozov, D. Jiang, Y. Zhang, S.V. Dubonos, I.V. Grigorieva, A.A. Firsov, Science 306 (2004) 666-669.
[10]	A.A. Balandin, S. Ghosh, W. Bao, I. Calizo, D. Teweldebrhan, F. Miao, C.N. Lau,Nano Lett. 8(2008) 902-907.
[11]	R.J. Young, I.A. Kinloch, L. Gong, K.S. Novoselov, Compos. Sci. Technol. 72(2012) 1459-1476.
[12]	S.C. Tjong, Mater. Sci. Eng. R 74 (2013) 281-350.
[13]	D.B. Xiong, M. Cao, Q. Guo, Z. Tan, G. Fan, Z. Li, D. Zhang, ACS Nano 9 (2015)6934-6943.
[14]	J. Hwang, T. Yoon, S.H. Jin, J. Lee, T.S. Kim, S.H. Hong, S. Jeon, Adv. Mater. 25(2013) 6724-6729.
[15]	W.J. Kim, T.J. Lee, S.H. Han, Carbon 69 (2014) 55-65.
[16]	R. Jiang, X. Zhou, Q. Fang, Z. Liu, Mater. Sci. Eng. A 654 (2016) 124-130.
[17]	X. Liu, D. Wei, L. Zhuang, C. Cai, Y. Zhao, Mater. Sci. Eng. A 642 (2015) 1-6.
[18]	Y. Kim, J. Lee, M.S. Yeom, J.W. Shin, H. Kim, Y. Cui, J.W. Kysar, J. Hone, Y. Jung,S. Jeon, S.M. Han, Nat. Commun. 4(2013) 2114.
[19]	M.X. Li, J. Xie, Y.D. Li, H.H. Xu, Phys. Status Solidi A 212 (2015) 2154-2161.
[20]	Y. Chen, X. Zhang, E. Liu, C. He, C. Shi, J. Li, P. Nash, N. Zhao, Sci. Rep. 6(2016)19363.
[21]	H.Y. Yue, L.H. Yao, X. Gao, S.L. Zhang, E.J. Guo, H. Zhang, X.Y. Lin, B. Wang, J.Alloys Compd. 691(2017) 755-762.
[22]	Z. Li, Q. Guo, Z. Li, G. Fan, D.B. Xiong, Y. Su, J. Zhang, D. Zhang, Nano Lett. 15(2015) 8077-8083.
[23]	F. Chen, J. Ying, Y. Wang, S. Du, Z. Liu, Q. Huang, Carbon 96 (2016) 836-842.
[24]	J.F. Li, L. Zhang, J.K. Xiao, K.C. Zhou, Trans. Nonferrous Metals Soc. China 25 (2015) 3354-3362.
[25]	L.J. Cote, F. Kim, J. Huang, J. Am. Chem, Soc. 131(2009) 1043-1049.
[26]	X. Gao, H.Y. Yue, E.J. Guo, H. Zhang, X.Y. Lin, L.H. Yao, B. Wang, PowderTechnol. 301(2016) 601-607.
[27]	H. Xia, X. Zhang, Z. Shi, C. Zhao, Y. Li, J. Wang, G. Qiao, Mater. Sci. Eng. A 639 (2015) 29-36.
[28]	S. Yang, X. Feng, L. Wang, K. Tang, J. Maier, K. Müllen, Angew. Chem. Int. Edit.49(2010) 4795-4799.
[29]	D. Li, M.B. Müller, S. Gilje, R.B. Kaner, G.G. Wallace, Nat. Nanotechnol. 3(2008)101.
[30]	X. Gao, H.Y. Yue, E.J. Guo, H. Zhang, X.Y. Lin, L.H. Yao, B. Wang, Mater. Des. 94(2016) 54-60.
[31]	A.M.K. Esawi, K. Morsi, A. Sayed, M. Taher, S. Lanka, Compos. Sci. Technol. 70(2010) 2237-2241.