Results 21 to 30 of about 315,058 (351)

Physicochemical and tribological properties of gemini-type halogen-free dicationic ionic liquids

open access: yesFriction, 2020
A series of new halogen-free dicationic ionic liquids (ILs) with different alkyl chain lengths were prepared, and the relationship between the alkyl chain length, physicochemical and tribological properties of ILs, and their role as neat lubricant for ...
Qiangliang Yu   +9 more
doaj   +1 more source

Tribological evaluation of environmentally friendly ionic liquids derived from renewable biomaterials

open access: yesFriction, 2017
Unlike most of the conventional ionic liquids (ILs) derived from non-renewable resources, five environmentally friendly ILs ([Ch][AA] ILs) derived from amino acids (AAs) and choline (Ch) were synthesized using biomaterials by a simple, green route: acid ...
Cheng Jiang   +4 more
doaj   +1 more source

Air cushioning with a lubrication/ inviscid balance [PDF]

open access: yes, 2003
The air cushioning effect in the gap between an almost inviscid body of water and a nearby solid wall (or another body of water) is studied theoretically and is found to depend on predominantly lubricating forces in the air, in certain applications.
Li, L., Smith, F.T., Wu, G.X.
core   +1 more source

Influence of binder systems on sintering characteristics, microstructures, and mechanical properties of PcBN composites fabricated by SPS

open access: yesJournal of Advanced Ceramics, 2022
Cubic boron nitride (cBN) with high hardness, thermal conductivity, wear resistance, and chemical inertness has become the most promising abrasive and machining material.
Shuna Chen   +8 more
doaj   +1 more source

Investigation of tribological characteristics of nickel alloy-based solid-lubricating composites at elevated temperatures under vacuum

open access: yesFriction, 2020
The development of a high-performance solid-lubricating composite with excellent self-lubricity over a broad temperature range in vacuum is significant to solve the frictional problems of spatial mechanisms.
Jinming Zhen   +6 more
doaj   +1 more source

Halloysite-gold core-shell nanosystem synergistically enhances thermal conductivity and mechanical properties to optimize the wear-resistance of a pheonlic-PBO/PTFE textile composite liner

open access: yesFriction, 2023
Polymer-textile liner composites have potential applications in aerospace applications for reducing the abrasion damage of moving parts during operation owing to their self-lubrication, light weight, and high loading capacity.
Yanling Wang   +7 more
doaj   +1 more source

Role of oxygen functional groups in reduced graphene oxide for lubrication

open access: yesScientific Reports, 2017
Functionalized and fully characterized graphene-based lubricant additives are potential 2D materials for energy-efficient tribological applications in machine elements, especially at macroscopic contacts.
B. Gupta   +5 more
semanticscholar   +1 more source

Cutting tool wear in turning 316L stainless steel in the conditions of minimized lubrication

open access: yes, 2021
316L stainless steel has emerged as one of the most used material in design and manufacturing for automotive, aerospace, marine, civil nuclear to produce critical components (valves, seats, pipes etc.).
Natalia Szczotkarz   +9 more
semanticscholar   +1 more source

Elastohydrodynamic Lubrication

open access: yesLubricants, 2020
The development of EHL theory from its tentative beginnings is outlined, with an account of how Ertel explained its relation to Hertz contact theory. The problems caused by the failure of the early numerical analysts to understand that the film thickness
J. Greenwood
semanticscholar   +1 more source

Oil-soluble ionic liquids as antiwear and extreme pressure additives in poly-α-olefin for steel/steel contacts

open access: yesFriction, 2017
To enhance the lubricating and extreme pressure (EP) performance of base oils, two types of oil-soluble ionic liquids (ILs) with similar anion albeit dissimilar cations were synthesized. The physical properties of the prepared ILs were measured.
Guowei Huang   +5 more
doaj   +1 more source

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