Invited speaker
Li Ji Researcher
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences
E-mail：jili@licp.cas.cn
Title: Design of macroscale solid superlubricating coatings towards engineering
Profile:
He engaged in basic research and application research of solid lubrication film/coating materials. He has successively led more than 10 projects, including 2030 Major Science and Technology Innovation Project, National Natural Science Foundation, and so on. He has developed many solid lubricating film/coating materials for the engineering equipments. He has published over 100 articles in academic journals such as Nat. Commun and Adv. Mater. He has won the first prize of Shanghai Technical Invention (ranked 2nd) and the first prize of China Surface Engineering Association Science and Technology Progress (ranked 2nd). He has been selected as a leader in Gansu Province, a distinguished member of the Chinese Academy of Sciences, an outstanding member of the Youth Innovation Promotion Association of the Chinese Academy of Sciences.
Abstract:
Superlubricity is a frontier subject in tribology research. From a theoretical perspective, it refers to the phenomenon where the frictional force between objects in relative motion approaches zero; From an engineering perspective, it refers to the reduction of friction coefficient by 1-2 orders of magnitude compared to traditional lubricants, reaching the level of 0.001 or below. The breakthrough of superlubricity technology is expected to promote the revolutionary progress of industrial technological civilization, but there are still many challenges in obtaining macroscale superlubricity performance. Based on the three superlubricity principles of hydrogen passivation of amorphous carbon films, incommensurate structrual superlubricity and molecular rolling, this report provides some innovative research ideas such as the designs of medium-range ordered structure, heterostructure and self-curling rolling lubrication, and the relevant research progresses are introduced.