Abstract

Probing the Lubrication of Shear-Induced Self-assembled Layer on Amorphous Carbon Films in Methane Atmosphere

Highlights

  • Friction exists in our daily life, resulting in nearly 20 % of the total energy consumption[1]

  • To further reveal the load influences in the frictional behaviors of Amorphous carbon (a-C) film, the relation between load and the average steady-state friction or friction coefficient is shown in Fig.2 (a) and Fig.2 (b), separately

  • The frictional behaviors of a-C film in methane atmosphere are explored with the load effects based on experimental and theoretical methods

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Summary

Introduction

Friction exists in our daily life, resulting in nearly 20 % of the total energy consumption[1]. The achievements towards interfacial states of a-C film have provided basic knowledge on regulating tribological performances of a-C film in certain conditions. DFT was used to analyze surface stability of diamond (111) configuration with Pandey reconstruction under various amount water and revealed the various distributions of dissociated groups on surface[16] These theoretical calculations give the deeper insight into the interfacial structures and states for surface and interface of materials in atomic scale, allowing the further understanding about the interfacial evolution behaviors of materials during activities. Natural gas that consists of methane is widely used in power generation and fueling of transportation systems In those industrial practices, it is efficient, durable, and cost-effective to improve the wear resistance properties of moving parts including fuel injectors, seal packs and pistons[17, 18]. The interfacial states for a-C film in methane are explored to understand the basic issue of friction

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