Advances in Ceramic-Based Lubricants

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

Deadline for manuscript submissions: 16 September 2024 | Viewed by 1264

Special Issue Editors


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Guest Editor
Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Interests: ceramic based lubricant; wear-resistant lubricating sealing material

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Guest Editor
School of Materail Science & Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
Interests: ceramic matrix composites; nanocomposites

Special Issue Information

Dear Colleagues,

Ceramic materials have many excellent properties such as high strength, high hardness, high temperature resistance, corrosion resistance and light weight, making them valuable as surface coatings or monolithic components for use as motion components in harsh environments (high temperature, strong corrosion, etc.). However, ceramic materials also have some disadvantages as mechanical moving parts, such as relatively high coefficients of friction and wear rates. The main forms of lubrication achieved by ceramic matrix composites include liquid lubrication and solid lubrication. In general, liquid media such as lubricating grease, water and acid/alkaline solutions provide excellent lubrication between the friction pairs of ceramic matrix composites. Solid lubrication is achieved by introducing the solid lubricant onto the surface of the material by micro weaving or bonding, or by incorporating the solid lubricant directly into the ceramic material for the effective lubrication of ceramic-based materials. For the environment in which the material will be used, by introducing specific single or compound solid lubricants into the ceramic material, the coefficient of friction and wear rate of the ceramic material can be significantly reduced to meet the actual working conditions of the materials.

This Special Issue will highlight recent advances in ceramic-based lubricants. We invite 10 high-quality research papers about the lubrication methods, tribological properties and mechanisms of ceramic based materials. We expect these studies to provide advanced ceramic-based lubricating materials in the future to solve some of the harsh lubrication challenges.

Dr. Junjie Song
Dr. Yuan Fang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ceramic coating
  • ceramic matrix composites
  • liquid lubrication
  • solid lubrication
  • lubrication method
  • tribological properties
  • lubrication mechanism
  • friction wear mechanisms

Published Papers (1 paper)

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Research

14 pages, 4831 KiB  
Article
Tribological Properties of Al2O3/Graphite-Al2O3 Laminated Composites under Water Lubrication Conditions
by Zhengxian Di, Zhijia Wang, Xiaoyu Zhang, Jiaxin Si, Junjie Song, Hengzhong Fan, Yunfeng Su, Litian Hu and Yongsheng Zhang
Lubricants 2024, 12(3), 81; https://doi.org/10.3390/lubricants12030081 - 5 Mar 2024
Viewed by 987
Abstract
High-performance Al2O3/graphite-Al2O3 laminated composites exhibit an excellent self-lubricating ability for moving components, such as sliding shaft sleeves and dynamic seals. The tribological behaviors of Al2O3/graphite-Al2O3 laminated composites should be [...] Read more.
High-performance Al2O3/graphite-Al2O3 laminated composites exhibit an excellent self-lubricating ability for moving components, such as sliding shaft sleeves and dynamic seals. The tribological behaviors of Al2O3/graphite-Al2O3 laminated composites should be studied extensively under water working conditions. Here, we attempted to explore the practicability of the Al2O3/graphite-Al2O3 laminated composite as a sealing material from a tribological point of view under water lubrication conditions. The tribological properties and mechanism of friction and wear of laminated composite ceramics were investigated under dry sliding friction, water environment, and suspended particle working conditions. It was found that the Al2O3/graphite-Al2O3 laminated composite has a better friction performance under water lubrication compared to dry sliding because of the separation effects formed by a water molecule film and a transfer film. Meanwhile, the wear rate under dry contact was found to be approximately six times that under water lubrication conditions. Under the water lubrication conditions, the formation of graphite films and water-adsorbed layers improved the anti-wear properties of the laminated materials, and the friction coefficient and the wear rate were as low as 0.16 and 1.76 × 10−6 mm3/Nm, respectively. Under the suspended particle working condition, the solid particles destroyed the graphite lubricating film and abrasive wear dominated the wear mode. The Al2O3/graphite-Al2O3 laminated composite demonstrates a potential for application in dynamic sealing and sliding components. Full article
(This article belongs to the Special Issue Advances in Ceramic-Based Lubricants)
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