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Tribological Characteristics of Aqueous Graphene Oxide, Graphitic Carbon Nitride, and Their Mixed Suspensions

Journal Article


Abstract


  • The tribological performance of graphene oxide (GO), graphitic carbon nitride (g-C 3 N 4 ), and their mixed (g-C 3 N 4 /GO) aqueous suspensions was investigated. The 0.06 wt% GO, 0.06 wt% g-C 3 N 4 , and 0.06 wt% 1:1 g-C 3 N 4 /GO suspensions reduced the coefficient of friction (COF) by 37, 26 and 37% and wear mark radius by 19.1, 16.0 and 19.6%, respectively, in comparison with water. Pure g-C 3 N 4 and GO suspensions showed unstable lubrication in the tests with relatively high loads and speeds, while the g-C 3 N 4 /GO mixed suspension had superior tribological performance in all tested conditions. This is because in the mixed suspension g-C 3 N 4 agglomerates became smaller, and GO nanosheets exhibited fewer wrinkles and less stacking, which enabled the formation of a layer of tribo-composite film. As a result, the friction, wear and tribo-corrosion were reduced during sliding.

UOW Authors


  •   He, Anshun (external author)
  •   Huang, Shuiquan (external author)
  •   Yun, Jung-Ho (external author)
  •   Jiang, Zhengyi
  •   Stokes, Jason (external author)
  •   Jiao, Sihai (external author)
  •   Wang, Lianzhou (external author)
  •   Huang, Han (external author)

Publication Date


  • 2018

Citation


  • He, A., Huang, S., Yun, J., Jiang, Z., Stokes, J. R., Jiao, S., Wang, L. & Huang, H. (2018). Tribological Characteristics of Aqueous Graphene Oxide, Graphitic Carbon Nitride, and Their Mixed Suspensions. Tribology Letters, 66 (1), 42-1-42-12.

Scopus Eid


  • 2-s2.0-85041903036

Start Page


  • 42-1

End Page


  • 42-12

Volume


  • 66

Issue


  • 1

Place Of Publication


  • United States

Abstract


  • The tribological performance of graphene oxide (GO), graphitic carbon nitride (g-C 3 N 4 ), and their mixed (g-C 3 N 4 /GO) aqueous suspensions was investigated. The 0.06 wt% GO, 0.06 wt% g-C 3 N 4 , and 0.06 wt% 1:1 g-C 3 N 4 /GO suspensions reduced the coefficient of friction (COF) by 37, 26 and 37% and wear mark radius by 19.1, 16.0 and 19.6%, respectively, in comparison with water. Pure g-C 3 N 4 and GO suspensions showed unstable lubrication in the tests with relatively high loads and speeds, while the g-C 3 N 4 /GO mixed suspension had superior tribological performance in all tested conditions. This is because in the mixed suspension g-C 3 N 4 agglomerates became smaller, and GO nanosheets exhibited fewer wrinkles and less stacking, which enabled the formation of a layer of tribo-composite film. As a result, the friction, wear and tribo-corrosion were reduced during sliding.

UOW Authors


  •   He, Anshun (external author)
  •   Huang, Shuiquan (external author)
  •   Yun, Jung-Ho (external author)
  •   Jiang, Zhengyi
  •   Stokes, Jason (external author)
  •   Jiao, Sihai (external author)
  •   Wang, Lianzhou (external author)
  •   Huang, Han (external author)

Publication Date


  • 2018

Citation


  • He, A., Huang, S., Yun, J., Jiang, Z., Stokes, J. R., Jiao, S., Wang, L. & Huang, H. (2018). Tribological Characteristics of Aqueous Graphene Oxide, Graphitic Carbon Nitride, and Their Mixed Suspensions. Tribology Letters, 66 (1), 42-1-42-12.

Scopus Eid


  • 2-s2.0-85041903036

Start Page


  • 42-1

End Page


  • 42-12

Volume


  • 66

Issue


  • 1

Place Of Publication


  • United States