公开(公告)号：US20170362711A1

公开(公告)日：2017-12-21

申请号：US15547728

申请日：2016-01-29

申请人： JTEKT CORPORATION ,  THE UNIVERSITY OF TOKYO

发明人： Takahisa KATO ,  Masataka NOSAKA ,  Mamoru TOHYAMA ,  Masahiro SUZUKI

IPC分类号： C23C16/50 ,  C23C16/26

摘要： A sliding surface, which is formed using metal (SUJ2, palladium etc.) or oxide ceramics (ZrO2), is made to slide, at a Hertzian contact stress of 1.0 GPa or more in an atmospheric environment containing a hydrogen gas including a minute amount of an alcohol and water, against a slid surface including a PLC film which is a coating formed by an ionization deposition method while applying a low bias voltage. Consequently, it is possible to form, on the sliding surface, a low-friction coating that stably exhibits a significantly low friction coefficient of 10−4 order (less than 0.001).

公开(公告)号：US20180023016A1

公开(公告)日：2018-01-25

申请号：US15547754

申请日：2016-01-29

申请人： JTEKT CORPORATION ,  THE UNIVERSITY OF TOKYO

发明人： Takahisa KATO ,  Masataka NOSAKA ,  Mamoru TOHYAMA ,  Atsushi MURASE ,  Kyoko NAKAI ,  Masahiro SUZUKI

IPC分类号： C10M105/04 ,  C10M105/08 ,  C10M103/02 ,  B05D5/08 ,  C10M105/06

CPC分类号： C10M105/04 ,  B05D5/08 ,  C10M103/02 ,  C10M105/06 ,  C10M105/08 ,  C10M109/02 ,  C10M177/00 ,  C10M2201/0413 ,  C10M2203/0206 ,  C10M2203/065 ,  C10N2230/06 ,  C10N2250/08 ,  C10N2250/121 ,  C23C16/26 ,  C23C16/44 ,  C23C16/50 ,  F16C17/00 ,  F16C33/121 ,  F16C2206/02 ,  F16C2206/48

摘要： A low-friction coating includes: an aliphatic hydrocarbon group showing a peak in a region of 2,900 cm−1 to 3000 cm−1 in an infrared absorption spectrum; a carbonyl group showing a peak in a region of 1,650 cm−1 to 1,800 cm−1 in an infrared absorption spectrum; an aromatic component (C7H7+) showing a peak at mass 91.1 in a positive ion spectrum obtained by TOF-SIMS; and a condensed ring based component (C9H7+) showing a peak at mass 115.2 in the positive ion spectrum obtained by TOF-SIMS.

公开(公告)号：US20190323498A1

公开(公告)日：2019-10-24

申请号：US16239015

申请日：2019-01-03

申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO ,  JTEKT CORPORATION

发明人： Masaru OKUYAMA ,  Hiroyuki MORI ,  Mamoru TOHYAMA ,  Noriyuki EMOTO ,  Naohito YOSHIDA

IPC分类号： F04C2/32 ,  F01M1/02 ,  F16N13/20 ,  F16N15/00

摘要： A sliding member has a sliding surface sliding under a wet condition in which a lubricant oil exists. The sliding surface is coated with a laminate film comprising an upper layer and a lower layer. The lower layer comprises hydrogen-free amorphous carbon (hydrogen-free DLC) and carbon particles dispersed on or in the hydrogen-free DLC. The hydrogen-free DLC has a hydrogen content of 5 atom % or less when the lower layer as a whole is 100 atom %. The upper layer comprises boron-containing amorphous carbon (B-DLC) and has protrusions on a surface side of the upper layer along the carbon particles of the lower layer. The B-DLC has a boron content of 1-40 atom % when the upper layer as a whole is 100 atom %. The protrusions have a particle diameter of 0.5-5 μm and exist with a density of 20 protrusions/100 μm2 or more.