Regulating the Nb_(2)C nanosheets with different degrees of oxidation in water lubricated sliding toward an excellent tribological performance

作     者：Hao CHENG Wenjie ZHAO Hao CHENG;Wenjie ZHAO

作者机构：Key Laboratory of Marine Materials and Related TechnologiesZhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2022年第10卷第3期

页      面：398-410页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(51775540) Zhejiang Provincial Natural Science Foundation of China(LR21E050001) the Youth Innovation Promotion Association,CAS(2017338) 

主　　题：MXene Nb_(2)C nanosheets oxidation degree water lubrication tribology 

摘      要：Novel two-dimensional(2D)Nb_(2)C nanosheets were successfully prepared through a simple lultrasonic and magnetic stirring treatment from the original accordion-like *** further study their water-lubrication properties and deal with common oxidation problems,Nb_(2)C nanosheets with different oxidation degrees were prepared and achieved long-term stability in deionized *** electron microscope(SEM),transmission electron microscope(TEM),scanning probe microscope(SPM),X-ray powder diffraction(XRD),Raman,and X-ray photoelectron spectrometer(XPS)experiments were utilized to characterize the structure,morphology,and dispersion of Nb_(2)C nanosheets with different degrees of *** tribological behaviors of Nb_(2)C with different degrees of oxidation as additives for water lubrication were characterized using a UMT-3 friction testing *** wear scars formed on the 316 steel surface were measured using three-dimensional(3D)laser scanning confocal *** tribological results showed that a moderately oxidized Nb_(2)C nanosheet,which owned the composition of Nb_(2)C/Nb_(2)O5/C,displayed excellent tribological performance,with the friction coefficient(COF)decreasing by 90.3%and a decrease in the wear rate by 73.1%compared with pure *** the TEM and Raman spectra,it was shown that Nb_(2)O5 nanoparticles filled in the worn zone,and the layered Nb_(2)C and C were adsorbed into the surface of the friction pair to form a protective lubricating *** combined action resulted in an excellent lubricating performance.