Boundary and Thin Film Lubrication

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: closed (20 October 2024) | Viewed by 972

Special Issue Editors


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Guest Editor
Institute for Applied Materials—Reliability and Microstructure (IAM-ZM), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
Interests: surface texturing; boundary or mixed lubrication; solid lubricants; biotribology

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Guest Editor
Institute for Applied Materials—Reliability and Microstructure (IAM-ZM), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
Interests: laser surface modification; PVD coatings; biotribology

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Guest Editor
School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, China
Interests: coating technology; green machining; tool design and preparation; micro-texture; self-lubricating; tribology

Special Issue Information

Dear Colleagues,

Boundary or thin film lubrication occurs when the hydrodynamic effect of a lubricant cannot support the load between two rubbing surfaces. Understanding and optimizing boundary and thin film lubrication is critical for enhancing the efficiency, reliability, and lifespan of machinery and mechanical systems across various industries. These lubrication mechanisms play a central role in preventing wear, minimizing friction, and ensuring the smooth operation of components, ultimately contributing to improved overall performance and reduced maintenance costs.

This special issue aims to explore fundamental research, experimental investigations, and the practical applications of boundary and thin film lubrication. Topics of interest include but are not limited to mechanisms of boundary lubrication, nanotribology, surface interactions, friction modifiers and surface treatments, lubricant rheology, and advancements in thin film lubrication technologies. Contributions may address theoretical modeling, experimental methodologies, or industrial case studies that shed light on emerging trends and challenges in enhancing lubrication efficiency and performance.

We welcome original research articles, reviews, and perspectives from both academia and industry. These valuable contributions will play a crucial role in advancing our understanding of boundary and thin film lubrication, facilitating innovative solutions, and driving progress in tribology. We eagerly anticipate your participation in this important exploration of lubrication science.

Dr. Hongzhi Yue
Dr. Amod Kashyap
Dr. Yayun Liu
Guest Editors

Manuscript Submission Information

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Keywords

  • boundary lubrication
  • thin film lubrication
  • nanotribology
  • friction modifiers
  • surface interactions
  • surface engineering
  • biotribology
  • wear mechanisms
  • tribochemistry
  • surface characterization

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Published Papers (1 paper)

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Research

16 pages, 18593 KiB  
Article
Frictional Behavior and Fluid Flow Simulation Analysis of Textured ZrO2–Polyetheretherketone Artificial Knee Joints
by Liwei Jiang, Bo Li, Fanshuo Jia, Guangjie Wang, Yayun Liu, Kedong Zhang, Ning Jiang and Chuanyang Wang
Lubricants 2025, 13(1), 23; https://doi.org/10.3390/lubricants13010023 - 8 Jan 2025
Viewed by 473
Abstract
ZrO2 ceramics, known for their high strength and wear resistance, are ideal for artificial joints. This study enhanced the friction performance of these joints by fabricating textured structures (50 μm width and 20–25 μm depth) on the ceramic surface. Friction tests, conducted [...] Read more.
ZrO2 ceramics, known for their high strength and wear resistance, are ideal for artificial joints. This study enhanced the friction performance of these joints by fabricating textured structures (50 μm width and 20–25 μm depth) on the ceramic surface. Friction tests, conducted at 200 r/min for 30 min with a 5–20 N load and lubricant concentration of 15–60 mg/mL using PEEK balls, showed that textured joints outperformed untextured ones. The symmetrical triangular structure had the lowest coefficient of friction and the best hydrophilicity, with a 53.0% reduction in the coefficient of friction and a 57.4% reduction in the contact angle compared to the untextured structure. The textures effectively store the PEEK residue and facilitate the smooth movement of the worn ball. Concurrently, the textured structure stores some of the lubricant, which reduces the static pressure during fluid flow by 12.6%. Overall, the friction performance of ZrO2 ceramic artificial joints was significantly improved by the textured structures. Full article
(This article belongs to the Special Issue Boundary and Thin Film Lubrication)
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