Results 131 to 140 of about 943,466 (348)

Surface topographical changes measured by phase-locked interferometry [PDF]

open access: yes
An electronic optical laser interferometer capable of resolving depth differences of as low as 30 A and planar displacements of 6000 A was constructed to examine surface profiles of bearing surfaces without physical contact.
Fung, S. S., Lauer, J. L.
core   +1 more source

A Comparison Study On Engine Oil Properties For Bi-Fuel Motorcycle [PDF]

open access: yes, 2002
All mechanical equipment must be lubricated in order to reduce friction and wear between the touching surfaces. For four-stroke motorcycle engine, the function of the engine oil play critical roles since the oil does not burn along with fuel in ...
Mohd. Adnan, Yahya   +2 more
core  

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins   +8 more
wiley   +1 more source

NASA five-ball fatigue tester: Over 20 years of research [PDF]

open access: yes
Studies were conducted to determine the effect on rolling-element fatigue life of contact angle, material hardness, chemistry, heat treatment and processing, lubricant type and chemistry, elastohydrodynamic film thickness, deformation and wear, vacuum ...
Anderson, W. J.   +2 more
core   +1 more source

Health Hazard Manual For Cutting Oils, Coolants, and Metalworking Fluids [PDF]

open access: yes, 1991
[Excerpt] The metalworker can be exposed to cutting oils during application by two basic routes of entry: skin contact and inhalation. The higher risk jobs tend to be those with high cutting speeds, heavy oil flow, and continuous contact, which may ...
Brown, Nellie J
core   +1 more source

Bistable Wetting States on a Smooth Surface

open access: yesAdvanced Materials Interfaces, EarlyView.
Droplets on non‐textured surfaces typically exhibit a monostable wetting state. Here, we show that droplets can exhibit bistability even without surface texture. We investigate water droplets on a smooth substrate immersed in oil. We find that molecular modulation causes the droplet states to bifurcate into either a sticking or a repellent state ...
Mizuki Tenjimbayashi, Shunto Arai
wiley   +1 more source

Applications of Phyllosilicates Mineral Powder as Anti-Wear Lubricating Materials in Lubricating Oil and Grease: A Review

open access: yesLubricants
Wear caused by friction is one of the main causes of most mechanical component failures. The application of powders as anti-wear lubricating materials has achieved great advances, which are of great significance in reducing friction and wear. This review
Nan Jiang, Feng Nan
doaj   +1 more source

Effect of strain hardening on friction behavior of iron lubricated with benzyl structures [PDF]

open access: yes
Sliding friction experiments were conducted with iron, copper, and aluminum in contact with iron in various states of strain. The surfaces were examined in dry sliding and with various benzyl compounds applied as lubricants.
Brainard, W. A., Buckley, D. H.
core   +1 more source

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease‐Lubricated Steels

open access: yesAdvanced Materials Interfaces, EarlyView.
When an electric current enters a pair of rubbing surfaces, enormous damage takes place. In this research, how such damage occurs in the presence of protective grease and the mitigation with added carbon nanoparticles, were investigated. It was discovered that those particles regulate transport and interfacial electrical stability of the grease ...
Mohammad Humaun Kabir   +6 more
wiley   +1 more source

Additives for Industrial Lubricants

open access: yesJournal of the Fuel Society of Japan, 1964
This paper outlines the current information of additives entering into formulation of industrial lubricants excluding engine oils.The additives mentioned here are oiliness improver, extreme pressure additive, antiwear agent, antirust agent and cohesive improver.The useful chemicals, function and application of each additive are described.
openaire   +2 more sources

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