Study of the Tribological Properties of Graphene and Related Materials Under Extreme Environments

2016 Fiscal Year Final Research Report

• Project/Area Number: 15H06471
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Design engineering/Machine functional elements/Tribology
• Research Institution: Kyushu University
• Principal Investigator: Saravanan Prabakaran 九州大学, カーボンニュートラル・エネルギー国際研究所, 学術研究員 (80756429)
• Research Collaborator: Sujeet Kumar SINHA Indian Institute of Technology, Professor ; Mohammed ABDUL SAMAD KFUPM, A/P
• Project Period (FY): 2015-08-28 – 2017-03-31
• Keywords: graphene oxide / superlubricity / hydrogen and nitrogen / GO transfer film / layer-by-layer / solid lubricant / onion-like carbon / nanoparticles

Outline of Final Research Achievements

1. Graphene oxide based non-metallic multilayered coatings developed on steel substrates for the coating applications in　pressure regulator, flow regulator and stop valves in the hydrogen storage and distribution systems.　First time ever, superlubricity (COF < 0.002) is observed for graphene oxide based coatings. Onion-Like Carbon (OLC) nanoparticles were found to be generated during sliding of graphene oxide in dry nitrogen and hydrogen, while humid atmosphere destroys the OLC particles.
2. The mechanism or science behind the evolution of nanoparticles during sliding was investigated using DFT simulations. Two journal papers (ACS Applied material and interfaces) and six conference proceedings were produced from this project.

Free Research Field

Tribology