Results 111 to 120 of about 36,924 (293)

Advances in Ultrasonic-Assisted Directed Energy Deposition (DED) for Metal Additive Manufacturing

open access: yesCrystals
Directed Energy Deposition (DED), a branch of AM processes, has emerged as a significant technique for fabricating large metal components in sectors such as aerospace, automotive, and healthcare.
Wenjun Zhang   +3 more
doaj   +1 more source

Ded-Mek [PDF]

open access: yesNature, 2018
openaire   +1 more source

Analysis of the fractional scattering contribution in the forward peak for multicomponent systems

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Derivation and justification of mixing rules for multicomponent systems. A novel formulation of the delta‐Eddington scaling rule. Analytical guidance for comparing radiative transfer results. Abstract The widely used δ‐Eddington approximation improves the accuracy of radiative transfer calculations by representing the fraction of scattering into the ...
Jiangnan Li, Yue Cai
wiley   +1 more source

Polymer Electrolyte–Cathode Surface Bonding Suppresses Oxygen Evolution and Cation Mixing in Ni‐Rich Layered Oxides for Lithium Batteries

open access: yesSmall, EarlyView.
Structural stability of NMC is enhanced by introducing strong Ni–Opolymer bonds, such as those in carbonate‐based (PTMC) electrolytes. Strong hybridization between surface Ni and polymer oxygen facilitates oxidation of undercoordinated Ni2+, thereby mitigating Li/Ni mixing and O2 evolution at deep delithiation states.
Liang‐Ting Wu   +3 more
wiley   +1 more source

Electrostatic Regulation of Sulfur Spatial Evolution for Dimensionally Stable Lithium–Sulfur Batteries

open access: yesSmall, EarlyView.
An NH2‐functionalized BN/CNT bilayer spatially separates electrostatic polysulfide regulation from electron transport, directing sulfur spatial evolution while suppressing inactive‐sulfur accumulation and electrode swelling. This dimensionally stable architecture reduces polarization, improves sulfur‐conversion kinetics, and maintains 1150 mAh g−1 ...
Ting‐Yu Hsu   +6 more
wiley   +1 more source

Emergent Innovation in Systemic Programme Design: Retrospective Reflections on the Development of a Student‐Centred Masters in Systems Thinking

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT Our theory of education, based on a systemic understanding of the subjective and intersubjective construction of knowledge, is that students are motivated to study what is most meaningful to them. Meaningfulness is grounded in the students' prior experiences, which are highly diverse.
Wendy J. Gregory, Gerald Midgley
wiley   +1 more source

DED process parameters optimisation via simulation (C)

open access: yes, 2023
As Additive Manufacturing (AM) gains popularity, there is a growing emphasis on refining its processes to fully capitalise on the benefits it offers.
Yeo, Choon Hao
core  

Experimental Investigation of Electrical Parameter Effects in Wire Arc Atomization of 316L Stainless Steel Powders for Additive Manufacturing

open access: yessteel research international, EarlyView.
This article presents wire arc atomization of 316L for the production of metallic powders used in additive manufacturing, with a systematic analysis of the influence of arc parameters on particle size. Through the application of dry sieving, scanning electron microscopy, and shape analysis, it is demonstrated that this technique is well‐suited for ...
Robin Grunert   +2 more
wiley   +1 more source

Multi‐Scale Mechanical Behavior of Additive‐Manufactured 316L Stainless Steel Processed by Severe Plastic Deformation

open access: yessteel research international, EarlyView.
The multi‐scale mechanical behavior of additive‐manufactured 316L stainless steel processed by directed energy deposition and high‐pressure torsion is explored. The influence of torsional strain on strength and microstructural evolution is revealed, indicating progressive grain refinement in the ultrafine regime, reaching strength levels nearing 1800 ...
M. Farhan Raza, Guney Guven Yapici
wiley   +1 more source

Low‐Voltage Pulsed GMA‐AM Application for Controlling Heat Input and Improving Deposition Quality of 309LSi Multilayered Structures

open access: yessteel research international, EarlyView.
This manuscript presents a study on the effects of parameter control of low‐voltage pulsed‐GMA‐AM application for producing 309LSi multilayered build‐ups, which can simultaneously lead to reduced heat input up to 32.1%, enable pulsed‐spray transfer, provide stable depositing conditions and preserve dimensional consistency, favoring fabrication of a 114‐
Petrônio L. C. C. C. Fernandes   +4 more
wiley   +1 more source

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