Results 71 to 80 of about 875,462 (392)

Experimental Researches Tribological Properties of Hard-Alloy Blades With a Vacuum-Plasma Coating in the Chipboards Milling Process

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
While developing effective ion-plasma coatings compositions of woodcutting tools special conditions of its use should be taken into account particularly the force rate acting on the cutting wedge.
Pavel Viktorovič Rudak   +6 more
doaj   +1 more source

Supersonic fan blading [PDF]

open access: yes, 1974
Radially extending rotor blades are disposed on a hub to form a supersonic propulsion fan for a turbofan engine. The peripheral spacing of the blades is such as to avoid forming a channel or passageway between adjacent blades.
Goldstein, A. W.
core   +1 more source

Asymptotic and numerical analysis of a simple model for blade coating [PDF]

open access: yes, 2008
Motivated by the industrial process of blade coating, the two-dimensional flow of a thin film of Newtonian fluid on a horizontal substrate moving parallel to itself with constant speed under a fixed blade of finite length in which the flows upstream and ...
Brian R. Duffy   +16 more
core   +1 more source

Impact of Hot Isostatic Pressing on Microstructure Evolution and Creep Performance of Powder Bed Fusion–Laser Beam Processed CM247LC

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan   +4 more
wiley   +1 more source

3D CFD Simulation and Experimental Validation of Small APC Slow Flyer Propeller Blade

open access: yesAerospace, 2017
The current work presents the numerical prediction method to determine small-scale propeller performance. The study is implemented using the commercially available computational fluid dynamics (CFD) solver, FLUENT. Numerical results are compared with the
Hairuniza Ahmed Kutty   +1 more
doaj   +1 more source

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri   +16 more
wiley   +1 more source

High Nb–TiAl Intermetallic Blades Fabricated by Isothermal Die Forging Process at Low Temperature

open access: yesMetals, 2020
In this study, the isothermal die forging process of high Nb–TiAl (Ti-44Al-8Nb-0.2W-0.2B-Y, at.%) alloy blades was simulated using the ABAQUS V6.11 software and the blades were fabricated successfully.
Xiaopeng Wang   +5 more
doaj   +1 more source

Insight into Damping Sources in Turbines

open access: yesFatigue of Aircraft Structures, 2023
Blade vibrations in aircraft engines are a significant challenge that must be overcome during the design and development of modern turbine engines.
Moneta Grzegorz
doaj   +1 more source

Development of an aeroelastic stability boundary for a rotor in autorotation [PDF]

open access: yes, 2008
<p>For the present study, a mathematical model AMRA was created to simulate the aeroelastic behaviour of a rotor during autorotation. Our model: Aeroelastic Model of a Rotor in Autorotation (AMRA) captures transverse bending and teeter ...
Gillies, E.A.   +2 more
core  

High‐Performance Low‐Emissivity Paints Enabled by N‐Doped Poly(benzodifurandione) (n‐PBDF) for Energy‐Efficient Buildings

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a scalable and colored low‐emissivity (low‐e) paint achieved by spraying an ultrathin n‐doped poly(benzodifurandione) (n‐PBDF) coating onto various colored substrates. The low‐e paint enhances thermal regulation by reducing mid‐infrared thermal emissivity to 0.19, thereby stabilizing indoor temperatures across diverse climates ...
Xiaojie Liu   +13 more
wiley   +1 more source

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