Title:
摺動部材及び被覆膜
Document Type and Number:
Japanese Patent JP6920698
Kind Code:
B2
Abstract:
To provide a sliding member comprising a coating film exhibiting constant and stable chipping resistance and wear resistance and excellent in peeling resistance (adhesion), and the coating film thereof. The problem is solved by a sliding member (10) comprising a coating film (1) composed of a hard carbon layer on a sliding surface (16) of a base material (11). The coating film (1) has, when a cross section thereof is observed by a bright-field TEM image, a thickness within a range of 1 µm to 50 µm, and is configured by repeating units including black hard carbon layers (B), relatively shown in black, and white hard carbon layers (W), relatively shown in white, and laminated in a thickness direction, and comprise an inclined region (2), provided on a base material side, where thicknesses of white hard carbon layers (W) of the repeating units gradually increase in a thickness direction, and a homogeneous region (3), provided on a surface side of the sliding member (10), where thicknesses of the white hard carbon layers (W) of the repeating units are the same or substantially the same in the thickness direction.
Inventors:
Takahiro Okazaki
Yoshihiro Ito
Hiroyuki Sugiura
Shinya Kanazawa
Hideki Moriguchi
Akinori Shibata
Takehiko Oshiro
Yoshihiro Ito
Hiroyuki Sugiura
Shinya Kanazawa
Hideki Moriguchi
Akinori Shibata
Takehiko Oshiro
Application Number:
JP2019525585A
Publication Date:
August 18, 2021
Filing Date:
June 15, 2018
Export Citation:
Assignee:
Nippon Piston Ring Co., Ltd.
Japan ITF Co., Ltd.
Japan ITF Co., Ltd.
International Classes:
C23C14/06; C01B32/05; C23C14/22; F16J9/26
Domestic Patent References:
| JP2017053435A | ||||
| JP2007169698A |
Foreign References:
| WO2016042629A1 | ||||
| WO2017104822A1 | ||||
| WO2017163807A1 |
Attorney, Agent or Firm:
Shunichi Yoshimura