Effect of sp3-sp2 Transformation on the Wear Rate of the DLC Coating

被引：10

作者：

Gershman, Iosif ^{[1
]}

Mironov, Alexander ^{[1
]}

Mezrin, Alexei ^{[2
]}

Torskaya, Elena ^{[2
]}

Kuznetsova, Tatyana ^{[3
]}

Lapitskaya, Vasilina ^{[3
]}

Rogachev, Alexander ^{[4
]}

机构：

[1] Moscow State Technol Univ Stankin MSTU STANKIN, Joint Stock Co Railway Res Inst, Moscow 127994, Russia

[2] RAS, Ishlinsky Inst Problems Mech, Moscow 119526, Russia

[3] NAS Belarus, Luikov Heat & Mass Transfer Inst, Minsk 220072, BELARUS

[4] NAS Belarus, Inst Chem New Mat, Minsk 220141, BELARUS

来源：

LUBRICANTS | 2022年 / 10卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

DLC; friction; wear intensity; coefficient of friction; sp(3)-sp(2) transformation; non-equilibrium thermodynamics; entropy; spontaneous processes; ENERGY-DISSIPATION; TI; FILMS; DIAMOND; MODEL;

D O I：

10.3390/lubricants10050085

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Based on the methods of non-equilibrium thermodynamics, it was found that the implementation of spontaneous processes with positive entropy production during friction leads to an increase in the wear intensity. Non-spontaneous processes with negative entropy production lead to a decrease in wear intensity. The tribological characteristics of diamond-like carbon (DLC) with different silicon content were studied. The wear intensity practically does not correlate with the friction coefficient. It is shown that DLC with the highest content of diamond-like inclusions (sp(3)) in the coating has the highest wear rate. In the same DLC, the most intense sp(3)-sp(2) transformation during friction was observed. The sp(3)-sp(2) transformation is a spontaneous process.

引用

页数：8

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