Results 91 to 100 of about 13,742 (229)
Detecting Superlight Dark Matter with Fermi-Degenerate Materials [PDF]
We examine in greater detail the recent proposal of using superconductors for detecting dark matter as light as the warm dark matter limit of O(keV).
Hochberg, Yonit +3 more
core +5 more sources
Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji +5 more
wiley +1 more source
Additive Manufacturing and Hot-Fire Testing of Bimetallic GRCop-84 and C-18150 Channel-Cooled Combustion Chambers Using Powder Bed Fusion and Inconel 625 Hybrid Directed Energy Deposition [PDF]
Additive manufacturing (AM) is an advanced fabrication technique that is demonstrating tremendous potential to reduce fabrication lead times and costs for liquid rocket engine components.
Doshi, Vishal +4 more
core +1 more source
Microstexture of Ti-6Al-4V obtained by direct energy deposition (DED) process
The microstructure of bulk samples prepared by CLAD® additive manufacturing of Ti-6Al-4V (Ti64) powder have been investigated by means of SEM and phase reconstruction. The CLAD® technique (laser blown powder processing) developed at IREPA LASER provides very high cooling rate promoting the formation of the martensitic α’ phase in the form of thin ...
Weiss, Laurent +3 more
openaire +2 more sources
Aeronautical metallic components repair using direct energy deposition (DED) process
Inconel alloy 718 (IN718) is a precipitation hardened nickel-based superalloy widely used in aero-engine components –turbine blades, vanes and blisks– that are subjected to severe thermo-mechanical loads in service. Hence, for economic reasons, repair of these high value-added parts is an important alternative to extend their lifetime instead of ...
openaire +1 more source
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
In Situ microstructure control during electric-arc-directed energy deposition
Electric-arc-directed energy deposition (Arc-DED) revolutionises 3D metal printing by overcoming powder-based processes’ size and production rate limitations.
Lile Squires +2 more
doaj +1 more source
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk +2 more
wiley +1 more source
Life Cycle Assessment of Metal Part Repair Using Directed Energy Deposition : A Comparison Between Arc- and Laser-Based Methods [PDF]
This bachelor’s thesis investigates the environmental performance of metal part repair using Directed Energy Deposition (DED), focusing on a comparison between arc-based (DED-Arc) and laser-based (DED-LB) methods. The analysis is based on a process-phase
Hörkkö, Jaakko
core
The metallic 1T and semiconducting 1H phases of MoS2 enable phase‐engineered 1T/1H/1T homojunctions that exhibit MIM‐diode‐like rectification without dissimilar electrodes. Asymmetric 1T/1H interfaces induce interface dipoles and a built‐in potential drop across the 1H barrier, creating a trapezoidal tunnel barrier at zero bias and yielding diode‐like ...
Elias Eckmann +3 more
wiley +1 more source

