Results 51 to 60 of about 1,618 (199)

An Evaluation of Lubricating Properties of CuO and h-Boron Nitride (h-BN)

open access: yesTribology Online, 2020
The purpose of this paper is to study the tribiological behavior of (steel/porous iron), (steel/steel) and (steel/bronze) tribopair with micellar copper oxide, hexagonal boron nitride (h-BN), Lithium grease Liten LT43 and base oil, transformer mineral ...
K. Gocman   +3 more
doaj   +1 more source

Construction of ternary PEG200-based DESs lubrication systems via tailoring tribo-chemistry

open access: yesFriction, 2023
Designing novel lubricants with easily customized structures, devisable compositions, and simple and economic synthesis over traditional lubricants is critical to fulfilling complex applications, prolonging machine lifetime, and saving energy.
Yuting Li   +9 more
doaj   +1 more source

Strain‐Induced Redistribution of Point Defects in ZnO Nanoparticles

open access: yesSmall Science, Volume 6, Issue 3, March 2026.
Powder compaction generates local strain effects in ZnO nanoparticles. This alters the abundance of intrinsic point defects and impacts the semiconductor's electronic structure. Such changes were analyzed by a combination of spectroscopy and density functional theory calculations and emphasize the importance of strain effects in the design and ...
Korbinian Aicher   +4 more
wiley   +1 more source

Achieving superlubricity in DLC films by controlling bulk, surface, and tribochemistry [PDF]

open access: yes, 2014
Superlubricity refers to a sliding regime in which contacting surfaces move over one another without generating much adhesion or friction [1]. From a practical application point of view, this will be the most ideal tribological situation for many moving ...
Ali Erdemir, Osman Eryilmaz
core   +1 more source

Uncatalysed Production of Coumarin‐3‐carboxylic Acids: A Green Approach

open access: yesJournal of Chemistry, Volume 2016, Issue 1, 2016., 2016
A green contribution in short reaction times with moderate yields to produce coumarin‐3‐carboxylic acids is offered. Five different modes to activate the reactions (microwave, near‐infrared, mechanical milling, and ultrasound) were compared with mantle heating in the presence or absence of ethanol, a green solvent.
Joel Martínez   +7 more
wiley   +1 more source

Scuffing failure analysis based on a multiphysics coupling model and experimental verification

open access: yesFriction, 2023
General reductions in lubricant viscosities and increasing loads in machine components highlight the role of tribofilms in providing surface protection against scuffing. However, the relationship between the scuffing process and the growth and removal of
Bugao Lyu   +4 more
doaj   +1 more source

Direct microscopic evidence of shear induced graphitization of ultrananocrystalline diamond films

open access: yesCarbon Trends, 2021
The origin of ultralow friction and high wear resistance in ultrananocrystalline diamond (UNCD) films is still under active debate because of the perplexed tribochemistry at the sliding interface.
K. Ganesan   +3 more
doaj   +1 more source

Tribochemistry of graphene on iron and its possible role in lubrication of steel

open access: yes, 2016
Recent tribological experiments revealed that graphene is able to lubricate macroscale steel-on-steel sliding contacts very effectively both in dry and humid conditions.
Restuccia, Paolo, Righi, M. C.
core   +1 more source

Humidity‐Resistant Ultralow Friction in Diamond‐Like Carbon Coatings Enabled by Graphitic Nanodiamonds

open access: yesSmall Structures, Volume 6, Issue 10, October 2025.
The functionalization with graphitic nanodiamonds enhances friction reduction in diamond‐like carbon‐based interfaces. It promotes the formation of a stable, highly graphitic transfer layer, maintaining the core–shell arrangement. This study extends recent advances in superlubricity, providing insights into lubrication mechanisms in humid environments ...
Andrea Mescola   +7 more
wiley   +1 more source

Tribological Performance and Lubrication Mechanism of Alkylimidazolium Dialkyl Phosphates Ionic Liquids as Lubricants for Si3N4‐Ti3SiC2 Contacts

open access: yesJournal of Nanomaterials, Volume 2014, Issue 1, 2014., 2014
The tribological performance of Si3N4‐Ti3SiC2 contacts lubricated by alkylimidazolium dialkyl phosphates ionic liquids (ILs) was investigated using an Optimol SRV‐IV oscillating reciprocating friction and wear tester at room temperature (25°C) and 100°C.
Hai-zhong Wang   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy