Results 11 to 20 of about 92,977 (281)

Corneal abrasion

open access: yesClinical Ophthalmology, 2010
Scott FraserSunderland Eye Infirmary, Sunderland, UKDate of preparation: 25th June 2009Conflict of interest: None declaredClinical question: What is the best treatment for traumatic corneal abrasion?Results: Eye patching does not reduce pain in patients ...
Scott Fraser
doaj   +6 more sources

Micro-abrasion resistance of thermochemically treated steels in aqueous solutions: Mechanisms, maps, materials selection [PDF]

open access: yes, 2008
The area of micro-abrasion is an interesting and relatively recent area in tribo-testing methodologies, where small particles of less than 10 μm are employed between interacting surfaces.
Rocha, L.A.   +4 more
core   +4 more sources

Influence Evaluation of Tungsten Content on Microstructure and Properties of Cu-W Composite

open access: yesMetals, 2022
At present, most studies focus on Cu-W composites with high W content (W content > 50 wt%), while there are only sporadic reports on Cu-W composites with low W content (W content < 50 wt%).
Xiuqing Li   +10 more
doaj   +1 more source

Effect of Cr Content on the Microstructure of Casting Infiltration Layers: Simulations and Experiments

open access: yesCrystals, 2022
High chromium cast irons are commonly used as casting infiltration layers in the applications of wear resistance. The formation mechanism of the casting infiltration layer is essential to better develop the surface wear resistance materials using the ...
Chong Chen   +9 more
doaj   +1 more source

Tribological Properties of Cu-Based Self-Lubricating Materials Composed with Cu- or Ni-Plated Graphite

open access: yesLubricants, 2023
Cu-based self-lubricating materials can effectively adapt to complex natural environments and ensure consistency in materials used for switch transitions.
Yiran Wang, Liujie Xu, Xiuqing Li
doaj   +1 more source

Some remarks on particle size effects on the abrasion of a range of Fe based alloys [PDF]

open access: yes, 2010
The low-stress three body abrasion behaviour of a range of steels was investigated. The tests were carried out in a rubber wheel tester (according to ASTM G65-94, reapproved in 2000) at room temperature.
Cabral-Miramontes, J.A.   +4 more
core   +4 more sources

Effect of Microstructures on the Tribological Performance of Medium Carbon Steel

open access: yesMetals, 2022
Improving wear resistance and reducing the coefficient of friction of the cylinder liner are critical to improving the service life and energy savings of internal combustion engines.
Tao Jiang   +8 more
doaj   +1 more source

Prediction of four Si3N4 compounds by first-principles calculations

open access: yesAIP Advances, 2023
Four Si3N4 crystal structures were predicted using an ab initio evolutionary methodology. The mechanical and dynamic stabilities were confirmed by the density functional theory assuming zero-pressure conditions. Energetic stability calculations indicated
Qiaohe Wu   +9 more
doaj   +1 more source

Effect of rare-earth Sc on the interface microstructure and mechanical properties of Al/steel bimetallic composites prepared by liquid–solid casting

open access: yesJournal of Materials Research and Technology, 2023
In this study, scanning electron microscopy (SEM), electron backscatter diffraction analysis (EBSD), and electron probe microanalysis (EPMA) were used to investigate the impact of rare-earth Sc on the interface microstructure and mechanical properties of
Po Zhang   +9 more
doaj   +1 more source

Phase and Microstructure Transition of High Cu Content Cu-W Composite Powder Fabricated by Spray Drying

open access: yesMetals, 2022
Cu-W composite powder with various W contents (0, 10, 20, and 30 wt%) has been fabricated by spray drying, calcination, and two-stage hydrogen reduction in this work. The microstructures and phase evolution of Cu-W composite powder were studied by FESEM,
Qi Wang   +5 more
doaj   +1 more source

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