Quaternary Layered Boride Ti <sub>4</sub> MoSiB <sub>2</sub> : A Structure‐Function Integrated High‐Temperature Self‐Lubricating and Negative‐Wear Material
Abstract
Abstract As a newly emerging class of materials, quaternary layered borides are promising structural–functional integration materials. However, there have been very few systematic and in‐depth studies in many areas of these materials, including high‐temperature lubrication. In this study, a novel out‐of‐plane chemically ordered Ti 4 MoSiB 2 MAB phase material is synthesized and its mechanical and tribological properties are investigated over a wide temperature range. Experiments and calculations are conducted to determine its mechanical failure, friction, and wear mechanisms. The results indicate that the synthesized material maintains desirable comprehensive mechanical properties from room temperature to 1273 K and exhibits excellent lubricating and wear resistance performance at high temperatures. In this study, the operating principles of the anisotropic thermal expansion of crystals on the fracture behaviors, and the tribological chemical reactions and oxygen vacancies on tribological properties, are explained. This study is expected to provide a foundation for future practical applications in high‐temperature environments.
Article Details
Authors (14)
Hongbin Li
Department of Chemistry, College of Smart Materials and Future Energy, State Key Laboratory of Porous Materials for Separation and Conversion, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and Laboratory of Advanced Materials
Hengzhong Fan
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Yunfeng Su
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Zhenhua Li
State Key Laboratory of Forage Breeding-by-Design and Utilization, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences
Shuna Chen
Wanxin Wei
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Faqiang Chen
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Xiande Zheng
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Junjie Song
Tianchang Hu
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Yongsheng Zhang
Advanced Research Institute of Multidisciplinary Sciences
Zhiwen Jin
School of Physical Science and Technology & Lanzhou Center for Theoretical Physics & Key Laboratory of Theoretical Physics of Gansu Province & Key Laboratory of Quantum Theory and Applications of MOE Lanzhou University Lanzhou China
Litian Hu
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China
Weimin Liu