High-entropy ceramics for tribology applications: Recent advances and future directions

¹ State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China

² Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

³ College of Civil Engineering and Mechanics, Key Laboratory of Mechanics on Disaster and Environment in Western China, The Ministry of Education of China, Lanzhou University, Lanzhou, China

⁴ School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

⁵ Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China

⁶ Suzhou Laboratory, Suzhou 215000, China

⁷ State Key Laboratory of Coatings for Advanced Equipment, School of Materials Science & Engineering, Shandong University, Jinan 250061, China

⁸ School of Material Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, China

⁹ School of Material Science and Engineering, Fujian University of Technology, Fuzhou 350118, China

¹⁰ National Key Laboratory of Special Rare Metal Materials, Zhengzhou University, Zhengzhou 450001, China

^† Xiande Zheng and Qichun Sun contributed equally to this work.