1. National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2. Institute for Nano- and Microfluidics, Technische Universität Darmstadt, Darmstadt 64287, Germany
3. State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084, China
4. Aero-Engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology, Nanjing 210016, China
5. Institute for Materialwissenschaft, Technische Universität Darmstadt, Darmstadt 64287, Germany