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3 results on '"lubricant layers"'

1. Improvement of Technical Operation of Rolling Stock through the Application of New Synthetic Lubricant Compositions.

Author

Trofimenko, B. P. and Markelov, A. V.

Abstract

The possibility of using water-based lubricants in bearings is examined. An overview of the different types of water-based lubricants, their composition and properties, and methods of their application in bearings are provided. Particular attention is paid to studies showing the effectiveness of water-based lubricants in reducing friction and wear and increasing the energy efficiency of bearings. The research results confirm the potential of water-based lubricants for use in various industrial sectors where high performance and reduced environmental impact are required. Valuable information for engineers and manufacturers seeking to improve bearing performance and reduce the environmental impact is provided. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Friction control with nematic lubricants via external fields

Author

Mikko J. Alava, Adam S. Foster, Claudio Manzato, Lasse Laurson, Perustieteiden korkeakoulu, School of Science, Teknillisen fysiikan laitos, Department of Applied Physics, Aalto-yliopisto, and Aalto University

Subjects
Materials science, Field (physics), ta221, friction, 02 engineering and technology, liquid crystal lubricant layers, lubricant layers, 01 natural sciences, Physics::Fluid Dynamics, Molecular dynamics, liquid crystals, Liquid crystal, Phase (matter), 0103 physical sciences, Lubricant, 010306 general physics, ta218, ta214, ta114, Physics, bead-necklace model, Dynamics (mechanics), Isotropy, Mechanics, 021001 nanoscience & nanotechnology, Connection (mathematics), Condensed Matter::Soft Condensed Matter, properties, 0210 nano-technology, control
Abstract

We study the connection between sliding friction and the phase behavior of a simple rigid bead-necklace model of a liquid crystal (LC) lubricant layer confined between two parallel plates. The dynamics is dependent on competing LC ordering mechanisms, including the direction of sliding, and an applied (electric) field. Together with temperature and an applied pressure, determining whether the lubricant is in a fluidlike isotropic state or in a layered in-plane nematic state, such ordering is found to control the frictional properties of the lubricant. Our extensive molecular dynamics simulations reveal in a detailed manner how friction can be controlled via applied fields. The results are expected to help in designing novel strategies to develop lubricants with dynamically controllable properties.

Published
2015

3. Synchrotron FTIR microscopy of Langmuir-Blodgett monolayers and polyelectrolyte multilayers at the solid-solid interface

Author

Mark J. Tobin, David A. Beattie, Audrey Beaussart, Benjamin Thierry, Sarah L. Harmer, Agnieszka Mierczynska-Vasilev, Ljiljana Puskar, Beattie, David Allan, Beaussart, Audrey, Mierczynska-Vasilev, Agnieszka, Harmer-Bassell, Sarah Louise, Thierry, Benjamin, Puskar, Ljiljana, and Tobin, Mark

Subjects
Materials science, Analytical chemistry, lubricant layers, Microscopy, Atomic Force, Langmuir–Blodgett film, law.invention, Electrolytes, law, Eicosanoic Acids, Microscopy, Monolayer, Spectroscopy, Fourier Transform Infrared, Electrochemistry, Nanotechnology, General Materials Science, Fourier transform infrared spectroscopy, Hyaluronic Acid, Spectroscopy, Lubricants, chemistry.chemical_classification, Chitosan, Water, Hydrogen Bonding, Surfaces and Interfaces, Polymer, light delivery, Condensed Matter Physics, Synchrotron, Polyelectrolyte, chemistry, Models, Chemical, multilayer film, Layer (electronics), Synchrotrons
Abstract

Synchrotron FTIR microscopy has been used to probe the structure of model boundary lubricant layers confined at the solid−solid interface. The combination of high brightness of the IR source and a novel contact geometry that uses a hemispherical internal reflection element as the means for light delivery has enabled the detection of

Published
2012

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