Results 41 to 50 of about 70,763 (310)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Metal-assisted photochemical etching of GaN nanowires: The role of metal distribution

open access: yesElectrochemistry Communications, 2019
Metal-assisted chemical etching plays a critical role in synthesizing GaN nanowires. In this work, GaN films grown on Si(111) substrates are immersed in CuSO4/HF etchant under UV illumination to fabricate nanowires.
Qi Wang   +6 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Role of free hydrochloric acid in the low-cost regeneration of ferric chloride etchant by oxygen gas [PDF]

open access: yes, 2005
This thesis concerns the development of a low cost and environment- friendly method for the regeneration of the most widely used aqueous etchant, ferric chloride, found in photochemical machining (PCM) facilities.
Jefferies, P. J.
core  

STUDY ABOUT ALUMINIUM ETCHING

open access: yesNonconventional Technologies Review, 2019
Chemical etching is a micro-machining manufacturing process to produce micron-size components by applying of a chemical etching solution to remove unwanted part in the work-piece material. In this study aluminium was etched by different chemical agents (
Botis Mihaela
doaj  

Large enhancement of photocatalytic activity by chemical etching of TiO2 crystallized glass

open access: yesAPL Materials, 2014
The authors aim to report the largest enhancement of photocatalytic activity by chemical etching in anatase-type TiO2 crystallized glass. Optimization of several conditions for crystallization behavior and chemical etching to realize the nano-structured ...
Kazuki Yoshida   +6 more
doaj   +1 more source

Preparation of Silicon Nanowires Photocathode for Photoelectrochemical Water Splitting

open access: yesIraqi Journal of Physics, 2022
A metal-assisted chemical etching process employing p-type silicon wafers with varied etching durations is used to produce silicon nanowires. Silver nanoparticles prepared by chemical deposition are utilized as a catalyst in the formation of silicon ...
Zainab K. Ali, Mazin A. Mahdi
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

A New Reactive Atom Plasma Technology (RAPT) for Precision Machining: the Etching of ULE® Surface [PDF]

open access: yes, 2006
Results on reactive atom plasma etching performed on ULE® (Corning Ultra Low Expansion) glass samples at atmospheric pressure are presented for the first time.
Lyford, N.   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy