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Journals
Lubricants
Special Issues
Advances in Molecular Rheology and Tribology
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Advances in Molecular Rheology and Tribology

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

Deadline for manuscript submissions: 30 November 2024 | Viewed by 2730

Special Issue Editor

Dr. Ahmad Jabbarzadeh

E-Mail Website
Guest Editor
School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia
Interests: molecular and mesoscale simulations; microfluidics; nanofluidics; nanoparticles; polymer crystallization; tribology; rheology; computational nanotechnology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Designing efficient lubricants for various applications requires an understanding of their behaviour at the molecular scale. Lubricants' properties, such as viscosity and rheological behaviour, surface tension, liquid–surface interactions, tribo-film formation, pressure and temperature dependencies, are ultimately governed by their molecular composition. This Special Issue aims to highlight the research community's efforts to understand the behaviour of lubricants at the molecular level. All types of lubricants are considered, including mineral oils, ionic lubricants, water-based lubricants, green lubricants, bio-lubricants, boundary lubricants, self-assembled monolayers, and lubricant additives. Theoretical, modelling and experimental works are welcome, including molecular and mesoscale simulations and modelling, experimental rheological, tribological, and nanostructural characterization, and applications in boundary, elastohydrodynamic, and hydrodynamic lubrication regimes.

Dr. Ahmad Jabbarzadeh
Guest Editor

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

  • rheology
  • tribology
  • lubricant viscosity
  • normal stress difference
  • molecular simulations
  • mineral lubricants
  • ionic lubricants, water-based lubricants, green lubricants
  • lubricant additives
  • lubricant surface tension
  • hydration lubrication
  • biolubricants
  • surface engineering
  • boundary lubrication, elastohydrodynamic lubrication
  • hydrodynamic lubrication

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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18 pages, 15399 KiB  
Article
Molecular Dynamics Study on the Tribological Characteristics of Grain Boundary-Containing Graphene/h-BN Heterostructure Films
by Bo Zhao, Shifan Huang, Yutao Zhang, Xiangcheng Ju, Chengbang Li, Zhenglin Li and Lingji Xu
Lubricants 2024, 12(8), 296; https://doi.org/10.3390/lubricants12080296 - 22 Aug 2024
Viewed by 476
Abstract
A heterostructure film composed of graphene and h-BN has superlubricity and long-term anti-corrosion performance, enabling its potential applications as low-friction and corrosion-resistant coatings, especially in marine environments. However, the grain boundaries (GBs) and point defects formed during the preparation process may significantly [...] Read more.
A heterostructure film composed of graphene and h-BN has superlubricity and long-term anti-corrosion performance, enabling its potential applications as low-friction and corrosion-resistant coatings, especially in marine environments. However, the grain boundaries (GBs) and point defects formed during the preparation process may significantly affect the performance of the film. In this study, the tribological properties and wear mechanism of heterostructure films with different GB misorientation angles were studied with the molecular dynamics method. The results show that the high-energy atoms generated by strain-induced hillocks along the GBs can lead to stress concentration, thus deteriorating the wear resistance of the heterostructure film. Furthermore, point defects occurring on high-energy atoms can significantly alleviate the stress concentration, which is conducive to improving the wear resistance of the film. This study sheds light on improving the tribological characteristics of a graphene/h-BN heterostructure coating by properly controlling its microstructure. Full article
(This article belongs to the Special Issue Advances in Molecular Rheology and Tribology)
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16 pages, 9222 KiB  
Article
Investigating the Wettability, Rheological, and Tribological Properties of Ammonium-Based Protic Ionic Liquids as Neat Lubricants for Steel–Steel and Steel–Aluminium Contacts
by B. Depu Kumar Patro, P. S. Suvin, Raimondas Kreivaitis and Milda Gumbytė
Lubricants 2023, 11(11), 469; https://doi.org/10.3390/lubricants11110469 - 1 Nov 2023
Viewed by 1852
Abstract
This study aims to evaluate the tribological properties of two protic ionic liquids (PILs) under different tribological conditions as a sustainable alternative for mineral oil-based neat lubricants. The synthesis of PILs in this study uses a relatively simple and less expensive method. The [...] Read more.
This study aims to evaluate the tribological properties of two protic ionic liquids (PILs) under different tribological conditions as a sustainable alternative for mineral oil-based neat lubricants. The synthesis of PILs in this study uses a relatively simple and less expensive method. The Fourier transform infrared (FTIR) spectroscopy results help validate the synthesised PILs’ formation. Further, their physicochemical and tribological properties were investigated. The PILs as neat lubricants were tested on a ball-on-plate reciprocating tribometer using bearing steel–bearing steel and bearing steel–aluminium alloy friction pairs at 30 °C and 80 °C. The results show that the investigated PILs significantly reduced the coefficient of friction and wear. The dodecylamine-based PILs performed better in friction and wear reduction than the other investigated lubricants. The formation of the adsorption layer on the friction pairs was assumed to be the dominant friction and wear reduction mechanism. Full article
(This article belongs to the Special Issue Advances in Molecular Rheology and Tribology)
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