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Cited by 21Tribology and Wear AnalysisAerogels and thermal insulationBrake Systems and Friction Analysis

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Effect of graphene concentration on tribological properties of graphene aerogel/TiO2 composite through controllable cellular-structure

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Huang, Pengfei, Zhu, Rongtao, Li, Chaoyong, Wang, Xian, Wang, Xiang, Zhang, Xinxi·2020·Materials & Design
DOI 10.1016/j.matdes.2020.108468
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Abstract

The microstructure design of the packing is a crucial factor in determining the performances of sealing capacity. Graphene aerogel/TiO2 (GA/TiO2) composites were fabricated by an infiltration method using porous GA as a framework. GA with different pore sizes and morphologies was tuned by changing concentration of graphene. The structural morphology of the graphene layer structure transformed into porous structure as the graphene concentrations increased. In addition, mechanical properties and tribological behaviors of GA/TiO2 composites with different graphene concentrations were comparatively investigated. The results show that the TiO2 particles are more uniformly filled into the GA with higher graphene concentration due to the porous separation effect. Therefore, the GA/TiO2 composites of higher concentrations have a better elongation and mechanical properties. Simultaneously, the tribological behavior is excellent owing to the self-lubricating properties of graphene and tiny TiO2, and the TiO2 cluster can effectively prevent the crack propagation. Moreover, the tribological performance of the GA/TiO2 samples under wet friction conditions is better than that under dry friction conditions due to the self-transport operation of lubricants assisted by the through capillary action, besides the self-lubricating effect of graphene and tiny TiO2 particles.

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Metadata

Authors
Huang, P., Zhu, R., Li, C., Wang, X., Wang, X., & Zhang, X.
Affiliations
China University of Mining and Technology (CN)
Corresponding author
Zhu, Rongtao
ORCID
Venue
Materials & Design
Publisher
Elsevier BV
Published
2020-03
Volume
188
Pages
108468
ISSN
0264-1275 (ISSN-L)
DOI
10.1016/j.matdes.2020.108468
OpenAlex
W2998815569
Cited by
21
References
45
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 2 · 2022: 6 · 2021: 3 · 2020: 4
FWCI
1.92
Type
journal article
Language
en
Open access
Licence
Locations
  • Materials & Design (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Fundamental Research Funds for the Central Universities
Topics
  • Physical Sciences › Engineering › Mechanics of Materials › Tribology and Wear Analysis
  • Physical Sciences › Materials Science › Materials Chemistry › Aerogels and thermal insulation
  • Physical Sciences › Engineering › Automotive Engineering › Brake Systems and Friction Analysis
Keywords
graphene aerogel, titanium dioxide, graphene concentration, tribological properties, self-lubrication, porous structure, infiltration, crack propagation, wet friction, mechanical properties, sealants, cellular structures

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CoChat. (2026). Citation check: Effect of graphene concentration on tribological properties of graphene aerogel/TiO2 composite through controllable cellular-structure. https://app.cochat.ai/papers/10.1016/j.matdes.2020.108468
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Huang, P., Zhu, R., Li, C., Wang, X., Wang, X., & Zhang, X. (2020). Effect of graphene concentration on tribological properties of graphene aerogel/TiO2 composite through controllable cellular-structure. Materials & Design. https://doi.org/10.1016/j.matdes.2020.108468