Optimizing the Tribological Performance of Graphite–Resin Composites: The Role of High Crystallinity, Nano Morphology, and Hydrophobic Surface Modification.
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| Title: | Optimizing the Tribological Performance of Graphite–Resin Composites: The Role of High Crystallinity, Nano Morphology, and Hydrophobic Surface Modification. |
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| Authors: | Baek, So-jung1 (AUTHOR), Tak, Yeo-jin1,2 (AUTHOR), Yu, Da-hyun1 (AUTHOR), Park, Seong-yeon1,2 (AUTHOR), Um, Do-hyun2 (AUTHOR), Cho, Kwang-youn1 (AUTHOR) kycho@kicet.re.kr |
| Source: | Nanomaterials (2079-4991). Nov2025, Vol. 15 Issue 21, p1655. 19p. |
| Subjects: | Graphite composites, Crystallinity, Friction velocity, Wear resistance, Nanostructures, Hydrophobic surfaces, Mechanical behavior of materials |
| Abstract: | Graphite, with its layered structure and weak van der Waals bonding between graphene nano layers, exhibits excellent self-lubricating properties. Natural graphite, characterized by high crystallinity, and artificial graphite, with relatively low crystallinity, exhibit distinct friction behaviors and structural differences, which significantly influence the performance of graphite–resin composites as solid lubricants. This study investigates the effects of natural/artificial graphite ratios and hydrophobic silane coupling treatment on the oil impregnation behavior, friction coefficient, wear stability, and microstructural changes in graphite–resin composites. Under a vertical load of 88,260 N and surface pressure of 50 MPa, the impregnated graphite–resin composites demonstrated low friction coefficients and stable wear behavior. SEM analysis revealed well-preserved microstructures, and Raman spectroscopy confirmed the formation of stable lubrication films through the ID/IG ratio, indicating graphene exfoliation. The results indicate that natural graphite provides dense structures and stable friction, while artificial graphite enhances oil impregnation but leads to unstable friction behavior. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 189602847 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Optimizing the Tribological Performance of Graphite–Resin Composites: The Role of High Crystallinity, Nano Morphology, and Hydrophobic Surface Modification. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Baek%2C+So-jung%22">Baek, So-jung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tak%2C+Yeo-jin%22">Tak, Yeo-jin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Da-hyun%22">Yu, Da-hyun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Park%2C+Seong-yeon%22">Park, Seong-yeon</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Um%2C+Do-hyun%22">Um, Do-hyun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cho%2C+Kwang-youn%22">Cho, Kwang-youn</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kycho@kicet.re.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Nov2025, Vol. 15 Issue 21, p1655. 19p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Graphite+composites%22">Graphite composites</searchLink><br /><searchLink fieldCode="DE" term="%22Crystallinity%22">Crystallinity</searchLink><br /><searchLink fieldCode="DE" term="%22Friction+velocity%22">Friction velocity</searchLink><br /><searchLink fieldCode="DE" term="%22Wear+resistance%22">Wear resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructures%22">Nanostructures</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+surfaces%22">Hydrophobic surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Graphite, with its layered structure and weak van der Waals bonding between graphene nano layers, exhibits excellent self-lubricating properties. Natural graphite, characterized by high crystallinity, and artificial graphite, with relatively low crystallinity, exhibit distinct friction behaviors and structural differences, which significantly influence the performance of graphite–resin composites as solid lubricants. This study investigates the effects of natural/artificial graphite ratios and hydrophobic silane coupling treatment on the oil impregnation behavior, friction coefficient, wear stability, and microstructural changes in graphite–resin composites. Under a vertical load of 88,260 N and surface pressure of 50 MPa, the impregnated graphite–resin composites demonstrated low friction coefficients and stable wear behavior. SEM analysis revealed well-preserved microstructures, and Raman spectroscopy confirmed the formation of stable lubrication films through the ID/IG ratio, indicating graphene exfoliation. The results indicate that natural graphite provides dense structures and stable friction, while artificial graphite enhances oil impregnation but leads to unstable friction behavior. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano15211655 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 1655 Subjects: – SubjectFull: Graphite composites Type: general – SubjectFull: Crystallinity Type: general – SubjectFull: Friction velocity Type: general – SubjectFull: Wear resistance Type: general – SubjectFull: Nanostructures Type: general – SubjectFull: Hydrophobic surfaces Type: general – SubjectFull: Mechanical behavior of materials Type: general Titles: – TitleFull: Optimizing the Tribological Performance of Graphite–Resin Composites: The Role of High Crystallinity, Nano Morphology, and Hydrophobic Surface Modification. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Baek, So-jung – PersonEntity: Name: NameFull: Tak, Yeo-jin – PersonEntity: Name: NameFull: Yu, Da-hyun – PersonEntity: Name: NameFull: Park, Seong-yeon – PersonEntity: Name: NameFull: Um, Do-hyun – PersonEntity: Name: NameFull: Cho, Kwang-youn IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 15 – Type: issue Value: 21 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
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