Volume 43 Issue 5
Nov.  2023
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LIU Jian, YAN Zhen, HAO Junying, LIU Weimin. Response Mechanism of Tribological Properties of Al:WS2 Film under Different Ambient Thermal Shock (in Chinese). Chinese Journal of Space Science, 2023, 43(5): 899-906 doi: 10.11728/cjss2023.05.2022-0037
Citation: LIU Jian, YAN Zhen, HAO Junying, LIU Weimin. Response Mechanism of Tribological Properties of Al:WS2 Film under Different Ambient Thermal Shock (in Chinese). Chinese Journal of Space Science, 2023, 43(5): 899-906 doi: 10.11728/cjss2023.05.2022-0037

Response Mechanism of Tribological Properties of Al:WS2 Film under Different Ambient Thermal Shock

doi: 10.11728/cjss2023.05.2022-0037 cstr: 32142.14.cjss2023.05.2022-0037
  • Received Date: 2022-08-07
  • Accepted Date: 2023-06-25
  • Rev Recd Date: 2022-11-30
  • Available Online: 2023-06-25
  • Al:WS2 films were prepared by magnetron sputtering technology. In order to investigate the response mechanism of the tribological properties of Al:WS2 film under different ambient thermal shock, the thermal shock tests of –100~+250℃ in vacuum, nitrogen and oxygen were carried out using the temperature altering vacuum tribometer developed, and the structure, composition and tribological properties of Al:WS2 films after thermal shock were mainly studied. It was found that the columnar crystal of Al:WS2 film grows, S content decreases, part of WS2 is oxidized to WO3, and the hardness of film increases after thermal shock. After thermal shock under nitrogen atmosphere, the intensity of (002) diffraction peak of Al:WS2 film is obviously enhanced, and the friction coefficient decreased. After thermal shock with vacuum, WO3 appears on the surface of Al:WS2 film plays the role of abrasive wear, which reduces the life of film. After oxygen thermal shock, a large number of WS2 is oxidized to WO3, and the wear life of the film is significantly shortened due to the serious abrasive wear.

     

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