General Topics Archives - About Tribology

Development of a piston expander for Rankine cycles: Tribological challenges

29.05.2023 Xavier Borras

Summary Rankine cycles using piston expanders are a promising technology for waste heat recovery in heavy-duty vehicles. Piston expanders present tribological challenges however, as they must operate reliably at high temperature and with little or […]

Firearm Lubrication

29.05.2023 HARSHVARDHAN SINGH

Introduction A gun is a device or ranged weapon that utilizes pressure or explosive force to propel a projectile. It is designed to launch projectiles with accuracy and force. While guns come in various […]

Figure 2. A hybrid catalyst based on nickel anchored on nitrogen assembly carbon (Ni-NAC—see top middle image) and carbon nanowires (Cu-NWs—see bottom middle image) was produced that can convert carbon dioxide to carbon monoxide and then to ethylene (right image). In the top middle and bottom middle images, the light blue atoms represent atomically dispersed nickel, the blue atoms represent nitrogen and the red atoms are carbon. In the right image, the black atoms are carbon, the red atoms are oxygen and the white atoms are hydrogen. Figure courtesy of the Ames National Laboratory.

Conversion of carbon dioxide to ethylene

17.05.2023 TriboNet

By Dr. Neil Canter, Contributing Editor | TLT Tech Beat May 2023 A new type of catalyst has been developed that produces a five-fold enhancement in selectivity for producing ethylene from carbon dioxide. HIGHLIGHTS • […]

Figure 1. AC-STEM images and structure models as inserted for adsorbed Pt single-atom catalyst (Pt1/CA), embedded Pt single-atom catalyst (Pt1/CA-e), adsorbed Pt atomic single-layer catalyst (PtASL/CA) and embedded Pt atomic single-layer catalyst (PtASL/CA-e) are shown. Figure courtesy of the University of Central Florida.

Improving the efficiency of catalytic converters

10.05.2023 TriboNet

By Dr. Neil Canter, Contributing Editor | TLT Tech Beat May 2023 Placement of platinum atoms in a metal oxide is important in maximizing catalytic activity. HIGHLIGHTS • Positioning of single platinum atoms in certain […]

Resources | Free Full-Text | Exploring Renewable Energy Resources Using Remote Sensing and GIS—A Review

Tribology in renewable energy

08.05.2023 Manoj Rajankunte Mahadeshwara

Introduction Renewable energies and their technologies are the essential components for developing sustainable energy generation for the future. There are different ways technical difficulties are involved in these techniques which involve mechanical failures. The friction […]

Why Tribology is Important in Mechanical Engineering

Tribology of gears

01.05.2023 Manoj Rajankunte Mahadeshwara

Introduction Gears are the mechanical transmission elements that are toothed to transfer the motion and power between any mechanical components. They are widely used in various devices such as automobile parts, clocks, mechanical machines, bicycles, […]

The researchers intend to carry out more research using vanadium as the electrolyte, with practices to protect its oxidation by air. Initial experimentation shows that vanadium can be used and will cycle in a similar manner to the zinc iodide redox system.

Evolving friction of graphene

28.11.2016

Two-dimensional materials are defined as substances with the thickness less than few nanometers. While there may exist around 500 of various 2D materials, the first discovered 2D material is graphene. Graphene is flexible, transparent, possesses [...]
Nanotechnology Flight Test

29.07.2017

Mastering the intricacies of controlling matter at the nanoscale level is part of a revolutionary quest to apply nanotechnology to benefit industrial processes. A key element of that technology is the use of carbon nanotubes. [...]
New method reveals how damage occurs in human biological cells due to mechanical fatigue

18.11.2019

Human red cells (RBCs) are very versatile and have the ability to experience cell deformation as they move around different small vessels and capillaries. Their average life time is around 120 days and during this [...]
Everything is FAIR in research and tribology.

12.09.2022

Table of Contents IntroductionImportance of Ontology and ELNPin-on-disc experimentConclusion Introduction We live in an era of big data. Major corporations around the world are competing to collect data about their customers to provide better services [...]
A New Way to Understand Friction

21.09.2020

Friction is a part of everyday life. Most of us do not think about friction at all, except perhaps when we are trying to push something heavy along the floor, cursing the friction that it [...]