公开(公告)号：US20200339908A1

公开(公告)日：2020-10-29

申请号：US16762550

申请日：2018-10-25

Applicant: DAICEL CORPORATION ,  TOHOKU UNIVERSITY

Inventor： Norihiro KIMOTO ,  Tomohiro GOTO ,  Koshi ADACHI ,  Tsubasa TAKAHASHI

IPC: C10M173/02 ,  C10M125/02

Abstract: The present invention provides an initial running-in agent composition suitable for forming a low-friction surface (running-in surface) on a sliding member, such as a hard carbon film, in a system in which water is used as a lubricant. The initial running-in agent composition (10) according to an embodiment of the present invention contains water 11 as a lubricant base and nanodiamond particles (12). In the initial running-in agent composition (10), a content of the water (11) is preferably 99 mass % or greater, and a content of the nanodiamond particles (12) is preferably 1.0 mass % or less.