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Lubricants, Volume 7, Issue 6

2019 June - 8 articles

Cover Story: A quartz crystal microbalance was employed to measure the nanotribological properties of statistically diverse materials combinations of aqueous suspensions of nanoparticles and substrates deposited on an electrode. Five nanoparticles (SiO2, SiO2-P (with surfactant polyethylene glycol), TiO2, Al2O3, and γ-Fe2O3) and ten substrates (Au, Al, Cr, Cu, Mo, Ni, Pt, SiO2, Al2O3, and 304 stainless steel) were studied. The changes in QCM frequency and motional resistance led to identification of statistical performance factors that could be related to the macroscale friction coefficients and identify material genomes that underlie the performance of nanoparticle systems as lubricants. View this paper.
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Articles (8)

  • Article
  • Open Access
21 Citations
5,251 Views
18 Pages

Avoiding Starvation in Tribocontact Through Active Lubricant Transport in Laser Textured Surfaces

  • Tobias Stark,
  • Thomas Kiedrowski,
  • Holger Marschall and
  • Andrés Fabián Lasagni

Laser texturing is a viable tool to enhance the tribological performance of surfaces. Especially textures created with Direct Laser Interference Patterning (DLIP) show outstanding improvement in terms of reduction of coefficient of friction (COF) as...

  • Article
  • Open Access
3 Citations
3,096 Views
8 Pages

Influence of the Nonequilibrium Material State on Wear Resistance

  • Iosif Gershman,
  • Alexander Mironov,
  • Stephen Veldhuis,
  • Eugeniy I. Gershman,
  • Pavel Podrabinnik and
  • Ekaterina Kuznetsova

The influence of the nonequilibrium state of a material on its wear resistance is investigated in this study. Using methods of non-equilibrium thermodynamics and the theory of self-organization, a non-equilibrium material is shown to possess an overa...

  • Review
  • Open Access
26 Citations
5,932 Views
15 Pages

Tribology and Dentistry: A Commentary

  • Antonio Lanza,
  • Alessandro Ruggiero and
  • Ludovico Sbordone

Since 1966 the term “tribology” has integrated different topics like friction, lubrication and wear. After a few years, interest in this type of phenomena rapidly spread out around the world of biology and medicine, determining a new rese...

  • Article
  • Open Access
4 Citations
3,224 Views
12 Pages

The determination of residual stresses is an important issue when it comes to material failure analysis. The variation of global indentation properties, due to the presence of residual stresses, can serve as a guideline for the size and direction of...

  • Article
  • Open Access
13 Citations
4,126 Views
17 Pages

Nanotribological Performance Factors for Aqueous Suspensions of Oxide Nanoparticles and Their Relation to Macroscale Lubricity

  • Biplav Acharya,
  • Tyler N. Pardue,
  • Liangliang Su,
  • Alex I. Smirnov,
  • Donald W. Brenner and
  • Jacqueline Krim

Quartz crystal microbalance (QCM) measurements of nanotribological properties of statistically diverse materials combinations of nanoparticles and substrate electrodes in aqueous suspensions are reported and compared to macroscale measurements of the...

  • Article
  • Open Access
9 Citations
6,486 Views
12 Pages

An effort was made to find a relationship between the lubricant thickness at the point of contact of rolling element ball bearings, and empirical equations to predict the life for bearings under constant motion. Two independent failure mechanisms wer...

  • Article
  • Open Access
13 Citations
5,646 Views
16 Pages

Numerical Study of Power Loss and Lubrication of Connecting Rod Big-End

  • Abbas Razavykia,
  • Cristiana Delprete and
  • Paolo Baldissera

A hydrodynamic lubrication analysis for connecting rod big-end bearing is conducted. The effects of engine speed, operating condition, lubricant viscosity and oil temperature on tribological performance of big-end bearing have been examined. Force eq...

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Lubricants - ISSN 2075-4442