Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating
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 int...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/10/5/85 |
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| author | Iosif Gershman Alexander Mironov Alexei Mezrin Elena Torskaya Tatyana Kuznetsova Vasilina Lapitskaya Alexander Rogachev |
| author_facet | Iosif Gershman Alexander Mironov Alexei Mezrin Elena Torskaya Tatyana Kuznetsova Vasilina Lapitskaya Alexander Rogachev |
| author_sort | Iosif Gershman |
| collection | DOAJ |
| description | 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<sup>3</sup>) in the coating has the highest wear rate. In the same DLC, the most intense sp<sup>3</sup>–sp<sup>2</sup> transformation during friction was observed. The sp<sup>3</sup>–sp<sup>2</sup> transformation is a spontaneous process. |
| first_indexed | 2024-03-10T03:32:26Z |
| format | Article |
| id | doaj.art-0b32c3aaa3e0489c95a72c9f2658f4fd |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-10T03:32:26Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-0b32c3aaa3e0489c95a72c9f2658f4fd2023-11-23T11:51:25ZengMDPI AGLubricants2075-44422022-05-011058510.3390/lubricants10050085Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC CoatingIosif Gershman0Alexander Mironov1Alexei Mezrin2Elena Torskaya3Tatyana Kuznetsova4Vasilina Lapitskaya5Alexander Rogachev6Joint Stock Company Railway Research Institute, Moscow State Technological University “Stankin” (MSTU “STANKIN”), 127994 Moscow, RussiaJoint Stock Company Railway Research Institute, Moscow State Technological University “Stankin” (MSTU “STANKIN”), 127994 Moscow, RussiaIshlinsky Institute for Problems in Mechanics RAS, 119526 Moscow, RussiaIshlinsky Institute for Problems in Mechanics RAS, 119526 Moscow, RussiaLuikov Heat and Mass Transfer Institute of NAS of Belarus, 220072 Minsk, BelarusLuikov Heat and Mass Transfer Institute of NAS of Belarus, 220072 Minsk, BelarusInstitute of Chemistry of New Materials of NAS of Belarus, 220141 Minsk, BelarusBased 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<sup>3</sup>) in the coating has the highest wear rate. In the same DLC, the most intense sp<sup>3</sup>–sp<sup>2</sup> transformation during friction was observed. The sp<sup>3</sup>–sp<sup>2</sup> transformation is a spontaneous process.https://www.mdpi.com/2075-4442/10/5/85DLCfrictionwear intensitycoefficient of frictionsp<sup>3</sup>–sp<sup>2</sup> transformationnon-equilibrium thermodynamics |
| spellingShingle | Iosif Gershman Alexander Mironov Alexei Mezrin Elena Torskaya Tatyana Kuznetsova Vasilina Lapitskaya Alexander Rogachev Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating Lubricants DLC friction wear intensity coefficient of friction sp<sup>3</sup>–sp<sup>2</sup> transformation non-equilibrium thermodynamics |
| title | Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating |
| title_full | Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating |
| title_fullStr | Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating |
| title_full_unstemmed | Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating |
| title_short | Effect of sp<sup>3</sup>–sp<sup>2</sup> Transformation on the Wear Rate of the DLC Coating |
| title_sort | effect of sp sup 3 sup sp sup 2 sup transformation on the wear rate of the dlc coating |
| topic | DLC friction wear intensity coefficient of friction sp<sup>3</sup>–sp<sup>2</sup> transformation non-equilibrium thermodynamics |
| url | https://www.mdpi.com/2075-4442/10/5/85 |
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