School of Science Chongqing University of Technology Chongqing 400054 China;
Chongqing Key Laboratory of Green Energy Materials Technology and Systems Chongqing 400054 China;
College of Materials Science and Engineering Chongqing University of Technology Chongqing 400054 China;
Chongqing Collaborative Innovation Center for Brake Tribological Materials Chongqing 400054 China;