Results 261 to 270 of about 7,881,982 (352)

Boundary lubricating films: formation and lubrication mechanism

Tribology International, 2005
Boundary lubricating films are critical in effective lubrication of engine components. Their formation mechanism is not fully understood due to the lack of understanding of how molecular structures of the base oils and the antiwear additives work together.
S.M. Hsu, R.S. Gates
openaire   +1 more source

Lubrication Mechanism of Solid Lubricants in Oils

Journal of Lubrication Technology, 1983
Lubricating properties of machine oils containing such solid lubricants as (CF)n, MoS2, graphite, etc., were studied on a pin and disk machine by measuring an electric contact resistance and a friction force. After lubrication tests, solid lubricants films and transferred wear particles on worn surfaces have been observed by means of an XMA and an ...
T. Hisakado, T. Tsukizoe, H. Yoshikawa
openaire   +1 more source

Mechanism of Iodine Lubrication

Nature Physical Science, 1971
EXPERIMENTS under a great variety of conditions have shown that iodine is very effective in reducing the friction between sliding metal surfaces. Rowe1,2 has demonstrated that iodine vapour will react with outgassed titanium in a high vacuum system to form Til2, a low friction surface.
R. S. OWENS, R. W. ROBERTS
openaire   +1 more source

Graphite lubrication mechanisms under high mechanical load

Wear, 2021
Abstract In this study, the fundamental wear mechanisms of graphite were studied in sliding friction under high mechanical load. For these investigations, graphite coatings of various thickness were applied with an airbrush spray gun onto substrates with two roughness levels.
C.E. Morstein, M. Dienwiebel
openaire   +2 more sources

Silicon Nitride Boundary Lubrication: Lubrication Mechanism of Alcohols

Tribology Transactions, 1995
This paper describes the lubrication mechanism of alcohols with silicon nitride under boundary lubrication conditions. Dynamic wear tests and static chemical reaction studies were conducted to study the chemical interaction between alcohols and silicon nitride.
Richard S. Gates, Stephen M. Hsu
openaire   +1 more source

Lubrication Degradation Mechanisms

2020
In industry, owners, engineers and workers have struggled with lubricant degradation and its effects on their equipment. The purpose of Lubrication Degradation Mechanisms: A Complete Guide is to help personnel to understand the reasons behind the degradation of their lubricant, determine methods to identify the onset of degradation and reduce or ...
openaire   +1 more source

Transient lubrication of floating bush coupled with dynamics and kinematics of cam-roller in fuel supply mechanism of diesel engine

The Physics of Fluids
The roller-floating bush pin is a major component in the fuel supply mechanism of a diesel engine, and its tribological performance seriously affects the reliability of the equipment.
Huaiqian Guo, Yazhou Li, Bin Zhao, Yuan Guo, Zhongliang Xie, A. Morina, Xiqun Lu   +6 more
semanticscholar   +1 more source

Lubrication Mechanism of Solid Lubricants in Oils

A S L E Transactions, 1975
Metal surfaces have been investigated after lubrication tests with oils containing solid lubricants. With an MoS2-containing engine oil, an MoS2-film was formed on engine parts. Solids without a layer structure also formed solid films on metal surfaces at the area of frictional contact. These films are, however, not the original compounds, but products
openaire   +1 more source

Mechanism of Boundary Lubrication

2001
Abstract It has already been indicated that the boundary properties of lubricant films depend on the nature of the metal surfaces as well as on the composition of the lubricant itself. Nevertheless, little work of a consistent nature has been carried out on the effect of the underlying metal on boundary lubrication.
F P Bowden, D Tabor
openaire   +1 more source

A Mechanism to Explain Physiological Lubrication

Journal of Biomechanical Engineering, 2010
A new mechanism of physiological lubrication is proposed to explain how low-viscosity synovial fluid prevents articular surfaces from contacting and wearing. The new mechanism is based on the hypothesis that the hyaluronic acid chains in synovial fluid bind to the cartilage surfaces through electrostatic charges, with the phospholipid layer on an ...
David F, James, Garret M, Fick, W Douglas, Baines   +2 more
openaire   +2 more sources