Results 71 to 80 of about 7,125,243 (334)

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi   +5 more
wiley   +1 more source

Surface hardness of hybrid ionomer cement after immersion in antiseptic solution

open access: yesDental Journal, 2006
Hybrid ionomer cement or resin modified glass ionomer cement is a developed form of conventional glass ionomer cement. This hybrid ionomer cement can be eroded if in direct contact with acid solution which will affect surface hardness.
Anita Yuliati, Ajeng Kartika Sri Wardani
doaj   +1 more source

Reentrant Surface Melting of Colloidal Hard Spheres

open access: yesPhysical Review Letters, 2004
Concentrated suspensions of model colloidal hard spheres at a wall were studied in real space by means of time-resolved fluorescence confocal scanning microscopy. Both structure and dynamics of these systems differ dramatically from their bulk analogs (i.e., far away from a wall).
Dullens, R.P.A., Kegel, W.K.
openaire   +5 more sources

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

open access: yesAdvanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De   +3 more
wiley   +1 more source

Impact of Different LED Units, Tip Distance and Time of Light Exposure on Microhardness of Resin-Based Composite for Posterior Teeth [PDF]

open access: yesInternational Journal of Biomedicine
Background: The aim of this in vitro study was to reveal in a time-dependent manner the effect of received irradiance produced by different light-emitting-diode (LED) lamps on the surface microhardness of composite material used in the restoration of ...
Timur V. Melkumyan   +10 more
doaj   +1 more source

Ti6Al4V ALAŞIMINDA ESNEK HONLAMA VE SİLİNDİRİK PARLATMA İŞLEMLERİNİN DELİK YÜZEY ÖZELLİKLERİNE ETKİLERİNİN İNCELENMESİ

open access: yesEskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2020
In aviation applications, as in many industrial applications, it is generally desired to have a higher surface quality inside the hole. The surface roughness, surface hardness and strength are the features that determine the surface quality ...
Hakan ÖKMEN, Ümit ER
doaj   +1 more source

SURFACES OF HARD-SPHERE SYSTEMS

open access: yesImage Analysis & Stereology, 2014
In various situations surfaces appear that are formed by systems of hard spheres. Examples are porous layers as surfaces of sand heaps and biofilms or fracture surfaces of concrete. The present paper considers models where a statistically homogeneous system of hard spheres with random radii is intersected by a plane and the surface is formed by the ...
openaire   +4 more sources

High‐Entropy Alloy Design Toward Cobalt Substitution for High Hardness and Low Wear Rate Using X–Cr–Fe–Mn–Ni System

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the replacement of cobalt using the high‐entropy alloy design strategy for wear‐resistant components operating at high temperatures. Starting from the Cantor alloy, cobalt is substituted with Cu, Al, V, or Mo. Metallurgical and tribological analyses reveal that aluminum, vanadium, and molybdenum effectively strengthen the developed ...
Rafaël Jénot   +5 more
wiley   +1 more source

Weathering characteristics of impregnated and coated calabrian pine wood

open access: yesMaderas: Ciencia y Tecnología, 2021
This study was designed to investigate the weathering characteristics of Calabrian pine (Pinus brutia) wood. The wood specimens were impregnated with some copper-based chemicals and then varnish coated.
Ergun Baysal   +6 more
doaj  

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