Results 101 to 110 of about 13,045,476 (306)

The effect of radial-shear rolling on microstructure and mechanical properties of stainless austenitic steel AISI-321

open access: yesMATEC Web of Conferences, 2018
Improving the quality of metal products by crushing of the microstructure of material is one of the promising areas of modern metallurgy. The basic idea consists in refinement the grain structure of the material to sizes less than a micron, i.e.
Naizabekov Abdrakhman   +3 more
doaj   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

Micro-lateral extrusion of Zr55Cu30Al10Ni5 bulk metallic glass under low-frequency vibration loading

open access: yesMATEC Web of Conferences, 2015
The effect of vibration on the micro-forming ability of Zr55Cu30Al10Ni5 bulk metallic glass in its supercooled liquid region was studied. The experiment of micro-extrusion was carried out under different amplitude (38 ∼ 760 N) and different frequency (0 ...
Li Jinyang   +3 more
doaj   +1 more source

Influence of process parameters on the quality of flexible forming of 316L bipolar plate [PDF]

open access: yesMATEC Web of Conferences
Bipolar plate is one of the most important components of proton exchange membrane fuel cells. In this paper, taking the micro channel flexible forming process of 316L stainless steel sheet as the research object, the influence of process parameters on ...
Xie Wenlong   +5 more
doaj   +1 more source

RadioAstron space-VLBI project: studies of masers in star forming regions of our Galaxy and megamasers in external galaxies [PDF]

open access: yes, 2017
Observations of the masers in the course of RadioAstron mission yielded detections of fringes for a number of sources in both water and hydroxyl maser transitions. Several sources display numerous ultra-compact details. This proves that implementation of
Alakoz, A. V.   +3 more
core   +1 more source

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

open access: yesAdvanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof   +9 more
wiley   +1 more source

Micro-deformation behavior in micro-compression with high-purity aluminum processed by ECAP

open access: yesManufacturing Review, 2015
Ultrafine-grained (UFG) materials have a potential for applications in micro-forming since grain size appears to be the dominant factor which determines the limiting size of the geometrical features.
Xu Jie   +4 more
doaj   +1 more source

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid

open access: yes, 2009
We report on experiments of drop impacting a hydrophobic micro-grid, of typical spacing a few tens of $\mu$m. Above a threshold in impact speed, liquid emerges to the other side, forming micro-droplets of size about that of the grid holes.
Brunet, P.   +4 more
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

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