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| DOI | 10.1016/J.CARBON.2024.119168 | ||||
| Año | 2024 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
MXenes induce excellent wear resistance under solid lubrication due to their distinctive surface chemistry, easy-to-shear ability, and capability to form low-friction and wear-resistant tribofilms. However, beyond the extensively studied Ti3C2Tx, other promising members of the MXene family remain largely underexplored. Therefore, we spray-coated multi-layer vanadium carbide (V2CTx) coatings (thickness ∼10.8 μm) on steel substrates and studied their tribological performance for prolonged times (10,000 cycles) using a reciprocating ball-on-disk tribometer with acting contact pressure of 445 MPa in ambient conditions. Results show that V2CTx-coated substrates demonstrate an 8-fold reduction in friction (COF of 0.11) and a 10-fold wear rate reduction (1.405 × 10−6 mm3 N−1 m−1). High-resolution materials characterization confirmed that the remarkable tribological performance of these coatings can be traced back to the formation of protective films on the substrate (tribofilm) and counterbody (transferfilm) consisting of contact pressure and frictional heat-induced degraded, deformed, exfoliated V2CTx nanosheets, nanocrystalline oxides, and amorphous carbon debris. This work fully elucidates the tribological potential of V2CTx, which is of utmost relevance for designing high-performance lubricating materials. Our work has assessed the performance of multi-layer V2CTx (M2XTx) due to its remarkable thermal stability, low molecular weight, good mechanical properties, and high interlayer spacing, thus serving as an entry point into diverse MXene compositions, including M4X3Tx (V4C3Tx).
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Chhattal, Muhammad | - |
Lanzhou Institute of Chemical Physics Chinese Academy of Sciences - China
University of Chinese Academy of Sciences - China CASSACA - China Univ Chinese Acad Sci - China |
| 2 | Kaihuan, Yu | - |
Lanzhou Institute of Chemical Physics Chinese Academy of Sciences - China
CASSACA - China |
| 3 | G. Grützmacher, Philipp | Hombre |
Technische Universität Wien - Austria
TU Wien - Austria |
| 4 | Zambrano, Dario | Hombre |
Universidad de Chile - Chile
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| 5 | Rosenkranz, Andreas | Hombre |
Universidad de Chile - Chile
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| 6 | Ali, Salamat | - |
Lanzhou University - China
Lanzhou Univ - China |
| 7 | Huang, Yu Qian | - |
Lanzhou Institute of Chemical Physics Chinese Academy of Sciences - China
CASSACA - China |
| 8 | Gong, Zhenbin | - |
Lanzhou Institute of Chemical Physics Chinese Academy of Sciences - China
University of Chinese Academy of Sciences - China CASSACA - China Univ Chinese Acad Sci - China |
| 9 | Zhang, Junyan | - |
Lanzhou Institute of Chemical Physics Chinese Academy of Sciences - China
University of Chinese Academy of Sciences - China CASSACA - China Univ Chinese Acad Sci - China |
| Fuente |
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| FONDEQUIP |
| National Natural Science Foundation of China |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Chinese Academy of Sciences |
| ANID |
| Agencia Nacional de Investigación y Desarrollo |
| Key Research Program of the Chinese Academy of Sciences |
| Lanzhou Institute of Chemical Physics, CAS |
| Basic Frontier Scientific Research Program |
| Agradecimiento |
|---|
| This work is supported by the Key Research Program of the Chinese Academy of Sciences (Grant NO. XDB0470101), the Original Innovation Project \u201Cfrom 0 to 1\u2033 of the Basic Frontier Scientific Research Program (ZDBS-LY-SLH038), and the National Natural Science Foundation of China (Grant No. NSFC-52175202). We also appreciate the Key Program of the Lanzhou Institute of Chemical Physics, CAS (No. KJZLZD-3). A. Rosenkranz gratefully acknowledges the financial support given by ANID in the projects Fondecyt Regular 1220331 and Fondequip EQM190057. |
| This work is supported by the Key Research Program of the Chinese Academy of Sciences (Grant NO. XDB0470101) , the Original Innovation Project "from 0 to 1 '' of the Basic Frontier Scientific Research Program (ZDBS-LY-SLH038) , and the National Natural Science Foundation of China (Grant No. NSFC-52175202) . We also appreciate the Key Program of the Lanzhou Institute of Chemical Physics, CAS (No. KJZLZD-3) . A. Rosenkranz gratefully acknowledges the financial support given by ANID in the projects Fondecyt Regular 1220331 and Fondequip EQM190057. |