US 11,927,217 B2
Method for realizing macroscopic super-lubrication by a matching pair of nano metal-coated steel balls and hydrogen-containing carbon films
Junyan Zhang, Lanzhou (CN); Qian Jia, Lanzhou (CN); Bin Zhang, Lanzhou (CN); Xingkai Zhang, Lanzhou (CN); and Yuanlie Yu, Lanzhou (CN)
Assigned to LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Lanzhou (CN)
Filed by Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou (CN)
Filed on Jun. 24, 2021, as Appl. No. 17/356,583.
Claims priority of application No. 202010774380.X (CN), filed on Aug. 4, 2020.
Prior Publication US 2022/0042547 A1, Feb. 10, 2022
Int. Cl. F16C 33/32 (2006.01); C23C 16/27 (2006.01); C23C 28/00 (2006.01); C25D 3/12 (2006.01); C25D 3/48 (2006.01); C25D 3/50 (2006.01); F16C 33/66 (2006.01)
CPC F16C 33/6696 (2013.01) [C23C 16/276 (2013.01); C23C 28/343 (2013.01); C25D 3/12 (2013.01); C25D 3/48 (2013.01); C25D 3/50 (2013.01); F16C 33/32 (2013.01); F16C 2223/60 (2013.01); F16C 2223/70 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for realizing macroscopic super-lubrication by a matching pair of nano metal-coated steel balls and hydrogen-containing carbon films, wherein nano metal-coated steel balls and diamond-like films with a hydrogen content of 24-30% are used as the matching pair, and a tribochemical reaction occurs through the catalytic action of nano metal during the friction process to form a nano graphene transfer film at the contact interface to achieve macroscopic super-lubrication.