Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature
Here, we report the high-temperature superlubricity phenomenon accomplished in coatings produced by burnishing powders of antimony trioxide (Sb2O3) and magnesium silicate hydroxide coated with carbon (MSH/C) onto the nickel superalloy substrate. The tribological analysis performed in an open-air exp...
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doaj-2d66537a728744f6bd7a78871c75ee282021-04-15T14:09:28ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462021-04-01910.3389/fchem.2021.667878667878Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High TemperatureKai Gao0Kai Gao1Bin Wang2Asghar Shirani3Qiuying Chang4Diana Berman5State Key Laboratory of Tribology, Tsinghua University, Beijing, ChinaSchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, ChinaState Key Laboratory of Tribology, Tsinghua University, Beijing, ChinaMaterials Science and Engineering Department, University of North Texas, Denton, TX, United StatesSchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, ChinaMaterials Science and Engineering Department, University of North Texas, Denton, TX, United StatesHere, we report the high-temperature superlubricity phenomenon accomplished in coatings produced by burnishing powders of antimony trioxide (Sb2O3) and magnesium silicate hydroxide coated with carbon (MSH/C) onto the nickel superalloy substrate. The tribological analysis performed in an open-air experimental setup revealed that with the increase of testing temperature, the coefficient of friction (COF) of the coating gradually decreases, finally reaching the superlubricity regime (the COF of 0.008) at 300°C. The analysis of worn surfaces using in-situ Raman spectroscopy suggested the synergistic effect of the inner Sb2O3 adhesion layer and the top MSH/C layer, which do not only isolate the substrate from the direct exposure to sliding but also protect it from oxidation. The cross-sectional transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) results indicated the tribochemically-activated formation of an amorphous carbon layer on the surface of the coating during sliding. Formation of the film enables the high-temperature macroscale superlubricity behavior of the material system.https://www.frontiersin.org/articles/10.3389/fchem.2021.667878/fullmacroscale superlubricitymagnesium silicate hydroxideSb2O3burnishinghigh-temperaturetribology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kai Gao Kai Gao Bin Wang Asghar Shirani Qiuying Chang Diana Berman |
spellingShingle |
Kai Gao Kai Gao Bin Wang Asghar Shirani Qiuying Chang Diana Berman Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature Frontiers in Chemistry macroscale superlubricity magnesium silicate hydroxide Sb2O3 burnishing high-temperature tribology |
author_facet |
Kai Gao Kai Gao Bin Wang Asghar Shirani Qiuying Chang Diana Berman |
author_sort |
Kai Gao |
title |
Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature |
title_short |
Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature |
title_full |
Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature |
title_fullStr |
Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature |
title_full_unstemmed |
Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature |
title_sort |
macroscale superlubricity accomplished by sb2o3-msh/c under high temperature |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Chemistry |
issn |
2296-2646 |
publishDate |
2021-04-01 |
description |
Here, we report the high-temperature superlubricity phenomenon accomplished in coatings produced by burnishing powders of antimony trioxide (Sb2O3) and magnesium silicate hydroxide coated with carbon (MSH/C) onto the nickel superalloy substrate. The tribological analysis performed in an open-air experimental setup revealed that with the increase of testing temperature, the coefficient of friction (COF) of the coating gradually decreases, finally reaching the superlubricity regime (the COF of 0.008) at 300°C. The analysis of worn surfaces using in-situ Raman spectroscopy suggested the synergistic effect of the inner Sb2O3 adhesion layer and the top MSH/C layer, which do not only isolate the substrate from the direct exposure to sliding but also protect it from oxidation. The cross-sectional transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) results indicated the tribochemically-activated formation of an amorphous carbon layer on the surface of the coating during sliding. Formation of the film enables the high-temperature macroscale superlubricity behavior of the material system. |
topic |
macroscale superlubricity magnesium silicate hydroxide Sb2O3 burnishing high-temperature tribology |
url |
https://www.frontiersin.org/articles/10.3389/fchem.2021.667878/full |
work_keys_str_mv |
AT kaigao macroscalesuperlubricityaccomplishedbysb2o3mshcunderhightemperature AT kaigao macroscalesuperlubricityaccomplishedbysb2o3mshcunderhightemperature AT binwang macroscalesuperlubricityaccomplishedbysb2o3mshcunderhightemperature AT asgharshirani macroscalesuperlubricityaccomplishedbysb2o3mshcunderhightemperature AT qiuyingchang macroscalesuperlubricityaccomplishedbysb2o3mshcunderhightemperature AT dianaberman macroscalesuperlubricityaccomplishedbysb2o3mshcunderhightemperature |
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