公开(公告)号：US09957456B2

公开(公告)日：2018-05-01

申请号：US14083511

申请日：2013-11-19

Applicant: KSM Co., LTD.

Inventor： Dae Soon Lim ,  Min-gun Jeong ,  Seo-hyun Yoon

IPC: B23B9/00 ,  C10M103/02 ,  C04B35/52

CPC classification number: C10M103/02 ,  C04B35/521 ,  C04B2235/3826 ,  C04B2235/963 ,  C10M2201/0613 ,  C10N2230/06 ,  C10N2250/08 ,  C10N2270/00 ,  C10N2280/00 ,  Y10T428/24355 ,  Y10T428/30

Abstract: Provided is a carbon layer derived from carbide ceramics, wherein metal or non-metal atoms are extracted selectively from the surface of carbide ceramics to form voids, which, in turn, are filled with carbon synthesized by a carbon compound, thereby providing improved roughness and hardness, as well as to a method for preparing the same.