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公开(公告)号：US20200217416A1
公开(公告)日：2020-07-09
申请号：US16624781
申请日：2018-06-15
发明人： Takahiro OKAZAKI , Yoshihiro ITO , Hiroyuki SUGIURA , Shinya KANAZAWA , Hideki MORIGUCHI , Akinori SHIBATA , Takehiko OOSHIRO
摘要： A sliding member (10) including a coating film (1) composed of a hard carbon layer on a sliding surface (16) of a base material (11). The coating film 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, 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\, provided on a surface side of the sliding member, where thicknesses of the white hard carbon layers (W) of the repeating units are the same or substantially the same in the thickness direction.
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公开(公告)号：US20220396746A1
公开(公告)日：2022-12-15
申请号：US17764768
申请日：2020-09-30
发明人： Takahiro OKAZAKI , Hiroyuki SUGIURA
IPC分类号： C10M103/02 , C23C14/32 , C23C14/02 , C23C14/06 , F16J9/26
摘要： 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 above-described problem is solved by a sliding member (10) comprising a coating film (1) on a sliding surface (16) on a base material (11). The coating film (1) has, when a cross section thereof is observed by a bright-field TEM image, a total thickness within a range of 1 μm to 50 μm, in 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 (Y). In the black hard carbon layer (B) and the white hard carbon layer (W) adjacent to each other, the white hard carbon layer (W) has higher hardness and a larger [sp2/(sp2+sp3)] ratio than the black hard carbon layer (B).
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公开(公告)号：US20180371608A1
公开(公告)日：2018-12-27
申请号：US16062109
申请日：2016-12-16
发明人： Hideki MORIGUCHI , Akinori SHIBATA , Takehiko OOSHIRO , Yoshihiro ITO , Takahiro OKAZAKI , Hiroyuki SUGIURA
摘要： The purpose of the invention is to provide technology, which, in addition to being capable of forming thick hard carbon films of excellent durability even using PVD, is able to establish both chipping resistance and wear resistance in the formed hard carbon film and able to improve low friction properties and peeling resistance. Provided is a coating film to be coated on the surface of a substrate, the coating film having a total film thickness of greater than 1 μm to 50 μm wherein: when a cross-section is observed using bright field TEM images, white hard carbon layers that are shown as relatively white and black hard carbon layers that are shown as black are alternately laminated in the thickness direction; and the white hard carbon layers have regions that have grown in a fan-shape in the thickness direction.
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公开(公告)号：US20240159313A1
公开(公告)日：2024-05-16
申请号：US18283948
申请日：2022-03-25
发明人： Hiroyuki SUGIURA , Takahiro OKAZAKI
CPC分类号： F16J9/26 , C23C14/0015 , C23C14/0605 , C23C14/54
摘要： A sliding member including a coating film in a sliding surface on a base material. The coating film includes, when a cross section thereof is observed by a bright-field TEM image, a laminated part configured by laminating, in a thickness direction, repeating units including black hard carbon layers and white hard carbon layers and a surface layer part composed of a white hard carbon layer provided on the laminated part. A Vickers hardness of the black hard carbon layer is within a range of 700 to 1600 HV, a Vickers hardness of the white hard carbon layer is higher than a Vickers hardness of the black hard carbon layer adjacent thereto and within a range of 1200 to 2200 HV, and a Vickers hardness of the surface layer part is lower than the Vickers hardness of the white hard carbon layer and within a range of 800 to 1200 HV.
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公开(公告)号：US20170306257A1
公开(公告)日：2017-10-26
申请号：US15511638
申请日：2014-09-17
发明人： Hideki MORIGUCHI , Tadashi SAITO , Yoshikazu TANAKA , Akinori SHIBATA , Tetsumi ARAHI , Katsuaki OGAWA , Takahiro OKAZAKI , Hiroyuki SUGIURA , Yoshihiro ITO
IPC分类号： C10M103/02 , C23C14/06 , C23C14/32
CPC分类号： C10M103/02 , C01B32/05 , C01P2002/82 , C01P2004/04 , C10M2201/0413 , C10N2230/20 , C23C14/06 , C23C14/0605 , C23C14/325
摘要： Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance and peeling resistance. This film is coated on a substrate surface, wherein the coating film has a hard carbon that presents relatively black and white when observed in a cross-sectional bright-field TEM image, a mesh-shaped hard carbon layer is formed using a PVD method, said layer having white-colored hard carbon in a mesh shape extending in the thickness direction and black-colored hard carbon dispersed into the cavities in the mesh, and the ID/IG ratio is 1-6 when the mesh-shaped hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.
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公开(公告)号：US20170283935A1
公开(公告)日：2017-10-05
申请号：US15511639
申请日：2014-09-17
发明人： Hideki MORIGUCHI , Tadashi SAITO , Yoshikazu TANAKA , Tetsumi ARAHI , Katsuaki OGAWA , Takahiro OKAZAKI , Hiroyuki SUGIURA , Yoshihiro ITO
摘要： Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance (defect resistance) and peeling resistance. This coating film coats a substrate surface, wherein a hard carbon layer is formed extending in columns-shape perpendicular to the substrate when observed in a cross-sectional bright-field TEM image, the hard carbon layer is formed using a PVD method, and the ID/IG ratio is 1-6 when the hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.
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