Results 51 to 60 of about 13,736 (216)

A Solution to the Hot Cracking Problem and Anisotropic Mechanical Properties for Directed Energy Deposition FeCoNiCr Multi-Principal-Element Alloy

Metals, 2022
In this paper, a laser-based directed energy deposition (DED) technique is used to fabricate FeCoNiCr and CrMnFeCoNi multi-principal-element alloys (MPEAs).
Liufei Huang, Rui Li, Yaoning Sun, Denggao Guan, Chuanhui Liang, Chunli Jiang, Jun Chen, Dou Wang, Jinfeng Li   +8 more
doaj   +1 more source

Buried Unstrained Germanium Channels: A Lattice‐Matched Platform for Quantum Technology

Advanced Science, EarlyView.
ABSTRACT Strained germanium (ε$\varepsilon$‐Ge) and strained silicon (ε$\varepsilon$‐Si) buried quantum wells have enabled advanced spin‐qubit quantum processors. However, in the absence of suitable lattice‐matched substrates, ε$\varepsilon$‐Ge and ε$\varepsilon$‐Si are deposited on defective, metamorphic SiGe buffers, which may impact device ...
Davide Costa, Patrick Del Vecchio, Karina Hudson, Lucas E. A. Stehouwer, Alberto Tosato, Davide Degli Esposti, Vladimir Calvi, Luca Moreschini, Mario Lodari, Stefano Bosco, Giordano Scappucci   +10 more
wiley   +1 more source

Wear and material characterization of CuSn10 additively manufactured using directed energy deposition

Additive Manufacturing Letters, 2023
In the current scenario, a decline in the natural deposits of copper and its alloys has called for the efficient usage of bronze in mechanical components.
Sunil Raghavendra, Priyadarshini Jayashree, Domenico Antonio Rita, Giuseppe Piras, David Scheider, Marco Chemello, Matteo Benedetti   +6 more
doaj   +1 more source

Self‐Activating Electrocatalysts for Water Splitting: Advancing Structure–Performance Understanding and Beyond

Advanced Energy Materials, EarlyView.
Self‐activating electrocatalysts offer strong potential for advanced water splitting, enabled by their dynamic compositional and structural evolution during operation. This review highlights recent advances in self‐activating OER and HER catalysts, emphasizing the driving forces and mechanisms underlying their adaptive behavior. A conceptual network of
Christean Nickel, Bahareh Feizi Mohazzab, Kiarash Torabi, David Leander Troglauer, Guillermo Corea, Shikang Han, Dandan Gao   +6 more
wiley   +1 more source

Influence of deposition strategy on porosity in powder-feed directed energy deposition (DED)

Materials Research Proceedings
Abstract. Directed energy deposition (DED) is an additive manufacturing process which is increasingly being used for direct manufacturing, added function application and component repair of high-value metals and alloys that are otherwise hard to machine conventionally [1].
Dhoonooah, Neha Devi, Moussaoui, Kamel, Monies, Frederic, Rubio, Walter, Zitoune, Redouane   +4 more
openaire   +1 more source

Enhanced Photocatalytic Antibiotic Micropollutants Removal Resulting From a Synergism Between Cu Single Atoms and Carbon Vacancies on Graphitic Carbon Nitride

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Scheme of the synergistic degradation for antibiotic micropollutants in the Cu/ag‐C3N4 system. Photocatalytic processes driven by visible‐light irradiation offer a sustainable means of micropollutants removal from aquatic environments without the addition of reagents.
Xiaozhe Song, Cong Yan, Qinghua Yan, Congzhe Ren, Xin Liu, Ruiyan Zhang, Lei Chen, Chongqing Xu, Zhouyang Long, Wenyu Wang, Mingming Song, Xiaoguo Shi, Hui Wang   +12 more
wiley   +1 more source

Process Development to Repair Aluminum Components, Using EHLA and Laser-Powder DED Techniques

Journal of Manufacturing and Materials Processing
The article presents a new AM (Additive Manufacturing) process development, necessary to repair parts made from Aluminum 6061 material, with T6 treatment. The laser Directed Energy Deposition (DED) and Extreme High-Speed Directed Energy Deposition (EHLA)
Adrienn Matis, Min-Uh Ko, Richard Kraft, Nicolae Balc   +3 more
doaj   +1 more source

Magnetic-field-assisted directed energy deposition processing of Alnico for enhanced coercivity and magnetic anisotropy [PDF]

AIP Advances
This work reports the first demonstration of in situ magnetic-field-assisted Directed Energy Deposition (DED) for fabricating phase-separated Alnico permanent magnets.
O. Bishop, A. Duong, I. Smith, K. Snyder, E. Carpenter, R. Barua   +5 more
doaj   +1 more source

Topographical coloured plasmonic coins

, 2016
The use of metal nanostructures for colourization has attracted a great deal of interest with the recent developments in plasmonics. However, the current top-down colourization methods based on plasmonic concepts are tedious and time consuming, and thus ...
Berini, Pierre, C\uf4t\ue9, Guillaume, Charron, Martin, Guay, Jean-Michel, Lesina, Antonino Cal\ue0, Poitras, Daniel, Ramunno, Lora, Weck, Arnaud   +7 more
core   +1 more source

Influence of Heat Treatment and Scan Rotation on the Microstructure of Hot Work Tool Steel Manufactured using Laser Powder Bed Fusion

steel research international, EarlyView.
The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi, Fengxiang Lin, Christos Oikonomou, Mikael Grehk   +3 more
wiley   +1 more source