[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China
[3] Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Sci & Technol Wear & Protect Mat, Lanzhou, Peoples R China
[4] Chinese Acad Sci, State Key Lab Solid Lubricat, Lanzhou Inst Chem Phys, Tianshui Rd 18th, Lanzhou 730000, Peoples R China