3; composite material; tribological property; wear mechanism"/> 3 (GN/LaF3)nanocomposite materials were prepared by the melthod of Liquid-phase Ultrasonic Exfoliation. The morphologies of GN/LaF3nanocomposite materials were charactered by means of SEM, TEM. Its tribological properties as water additive were investigated using an multi-functional reciprocating friction and wear tester. The lubrication mechanism was discussed based on the results of analysises of SEM, XPS. The results showed that the LaF3nanoparticles, at the size of 5-50nm, were densely and randomly deposited on the surface of multilayer graphene sheets. The GN/LaF3nanocomposite materials express good friction-reducing and antiwear performance. Compared with pure water, it can reduce the friction coefficient at 34.35% and the wear mass fall at 52.40% with the load 10N and concentration 0.01wt%. The prosperity is attributed to the effection of the adsorption membrane and tribochemistry reaction films which inhibit the oxidation of Fe and reduce the wear."/>

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The Tribological Properties of Graphene-based LaF3 Nanocomposite Matirials
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National Key Laboratory of Remanufacturing,Academy of Armored Force Engineering,National Key Laboratory of Remanufacturing,Academy of Armored Force Engineering,National Key Laboratory of Remanufacturing,Academy of Armored Force Engineering,National Key Laboratory of Remanufacturing,Academy of Armored Force Engineering

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    Abstract:

    Graphene-based LaF3 (GN/LaF3)nanocomposite materials were prepared by the melthod of Liquid-phase Ultrasonic Exfoliation. The morphologies of GN/LaF3nanocomposite materials were charactered by means of SEM, TEM. Its tribological properties as water additive were investigated using an multi-functional reciprocating friction and wear tester. The lubrication mechanism was discussed based on the results of analysises of SEM, XPS. The results showed that the LaF3nanoparticles, at the size of 5-50nm, were densely and randomly deposited on the surface of multilayer graphene sheets. The GN/LaF3nanocomposite materials express good friction-reducing and antiwear performance. Compared with pure water, it can reduce the friction coefficient at 34.35% and the wear mass fall at 52.40% with the load 10N and concentration 0.01wt%. The prosperity is attributed to the effection of the adsorption membrane and tribochemistry reaction films which inhibit the oxidation of Fe and reduce the wear.

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[Zhao Haichao, Qiao Yulin, Zang Yan, Zhang Qing. The Tribological Properties of Graphene-based LaF3 Nanocomposite Matirials[J]. Rare Metal Materials and Engineering,2017,46(5):1293~1298.]
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History
  • Received:January 14,2015
  • Revised:March 05,2015
  • Adopted:August 11,2015
  • Online: September 27,2017
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