Inventi Impact - Tribology
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Journal Scope:
Tribology, the science of rubbing surfaces, is involved at micro and macro level in several aspects of life and technology. A finer understanding of this is becoming essential as the things are getting smaller, or where nano or bionic designs are involved; besides the domain of regular size or mega machines. ‘Inventi Rapid/Impact: Tribology’ is a multidisciplinary journal and aims to engage the researchers not only from engineering and technology, but from the life sciences as well.
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EXPERIMENTAL INVESTIGATIONS OF BIOLOGICAL LUBRICATION AT THE NANOSCALE: THE CASES OF SYNOVIAL JOINTS AND THE ORAL CAVITY
Interactions between surfaces are ubiquitous phenomena in living organisms. Nature has developed sophisticated strategies for lubricating these systems, increasing their efficiency and life span. This includes the use of water-based lubricants, such as saliva and synovial fluid. These fluids overcome the limitations of water as a lubricant by the presence of molecules such as proteins, lipids, and...
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PHOSPHATE ESTERS, THIOPHOSPHATE ESTERS AND METAL THIOPHOSPHATES AS LUBRICANT ADDITIVES
Phosphate esters, thiophosphate esters and metal thiophosphates have been used as lubricant additives for over 50 years. While their use has been extensive, a detailed knowledge of how they work has been a much more recent development. In this paper, the use of phosphate esters and thiophosphate esters as anti-wear or extreme pressure additives is reviewed with an emphasis on their mechanism of ac...
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LUBRICANTS FOR METAL BELT CONTINUOUSLY VARIABLE TRANSMISSIONS
This paper reviews the effects of lubricant additives and base stock used in metal belt continuously variable transmissions (CVT) fluids on the CVT transmission torque capacity. Additive formulation composed of phosphorus anti-wear agent, calcium detergent, and dispersant improved the friction coefficient between the metals. The analysis on the post-test surface suggests that the friction behavior...
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THE APPLICATION OF MOLECULAR DYNAMICS IN FULLERENE-BASED JOURNAL BEARING SIMULATION
The article is devoted to modeling of the molecular microscopic journal bearing. The walls and the lubricant of the bearing are fullerene-like molecules. On the basis of similarity theory and analysis of the dimensions, the similarity criterion is proposed. This criterion characterizes the convergence of a numerical solution. The test calculation is also made to evaluate the quality of the propose...
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EFFECT OF AN IMPROVED YASUTOMI PRESSURE-VISCOSITY RELATIONSHIP ON THE ELASTOHYDRODYNAMIC LINE CONTACT PROBLEM
This paper presents the application of an improved Yasutomi correlation for lubricant viscosity at high pressure in a Newtonian elastohydrodynamic line contact simulation. According to recent experimental studies using high pressure viscometers, the Yasutomi pressure-viscosity relationship derived fromthe free-volume model closely represents the real lubricant piezoviscous behavior for the high...
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GRAPHENE OXIDE NANOSHEETS AS EFFECTIVE FRICTION MODIFIER FOR OIL LUBRICANT: MATERIALS, METHODS AND TRIBOLOGICAL RESULTS
The tribological behaviour of graphene oxide nanosheets in mineral oil was investigated under a wide spectrum of conditions, from boundary and mixed lubrication to elastohydrodynamic regimes. A ball-on-disc setup tribometer has been used to verify the friction reduction due to nanosheets prepared by a modified Hummers method and dispersed in mineral oil. Their good friction and antiwear propert...
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