Results 11 to 20 of about 15,447 (260)

Friction Regimes in the Lubricants Solid-State Regime [PDF]

open access: yes, 1995
Friction measurements were performed in the lubricant's solid-state regime to study the transition from full-film lubrication, in which the separation is maintained by a solidified lubricant, to mixed lubrication. Special attention is paid to the influence of temperature (inlet viscosity) and roughness on this transition.
Schipper, Dirk J., Maathuis, O.
openaire   +1 more source

Effect of functional groups on tribological properties of lubricants and mechanism investigation

open access: yesFriction, 2022
Nine organic compounds were utilized as model lubricants to investigate the impact of functional groups on tribological performances. Nonanoic Acid with carboxyl showed the best lubrication properties, and fluid film and tribofilm were coexistent in its ...
Hongxiang Yu   +6 more
doaj   +1 more source

Steady state solutions for a lubrication multi-fluid flow [PDF]

open access: yesEuropean Journal of Applied Mathematics, 2011
We describe possible solutions for a stationary flow of two superposed fluids between two close surfaces in relative motion. Physically, this study is within the lubrication framework, in which it is of interest to predict the relative positions of the lubricant and the air in the device.
Chupin, Laurent, Grec, Bérénice
openaire   +4 more sources

A robust membrane with dual superlyophobicity for solving water-caused lubricant deterioration and water contamination

open access: yesFriction, 2023
Lubricants are often contaminated by water in different ways. Water-polluted lubricants extremely accelerate wear corrosion, leading to the deterioration of lubricity performance.
Siyang Zhao   +6 more
doaj   +1 more source

Role of transverse displacements for a quantized-velocity state of a lubricant [PDF]

open access: yesJournal of Physics: Condensed Matter, 2008
11 pages, 9 ...
I. E. Castelli   +5 more
openaire   +4 more sources

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

Time Integration and Steady-State Continuation for 2d Lubrication Equations [PDF]

open access: yesSIAM Journal on Applied Dynamical Systems, 2010
Lubrication equations allow to describe many structurin processes of thin liquid films. We develop and apply numerical tools suitable for their analysis employing a dynamical systems approach. In particular, we present a time integration algorithm based on exponential propagation and an algorithm for steady-state continuation.
Philippe Beltrame, Uwe Thiele
openaire   +2 more sources

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

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

State-of-The-Art Cooling and Lubrication for Machining Inconel 718

open access: yesJournal of Manufacturing Science and Engineering, 2020
Abstract Inconel 718 is the most used nickel superalloys with applications in aerospace, oil and gas, nuclear, and chemical industries. It is mostly used for safety-critical components where the condition of the surface is a significant concern.
De Bartolomeis, Andrea   +3 more
openaire   +2 more sources

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