Field-emission cathode gating for rf electron guns
Physical Review Special Topics. Accelerators and Beams, 2005 We present a novel method of combining the most desirable characteristics of thermionic-cathode and photocathode rf guns, using a field-emission cathode and multiple rf frequencies. Simulations indicate that extremely low-emittance beams (on the order of
J. W. Lewellen, J. Noonan
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Effect of ligand-free magnetite nanoparticles prepared by electron beam physical vapour deposition in conjugation with antibiotic [PDF]
Royal Society Open ScienceThe antibacterial activity of magnetite-based nanocomposites synthesized by electron beam physical vapour deposition (EB PVD) was investigated. The phase, elemental and size composition of the synthesized nanoparticles were confirmed by scanning ...
Stanislav Ye Lytvyn +3 more
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Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows
Advanced Engineering Materials, EarlyView.A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba +5 more
wiley +1 more source
Hydrous Carbonatitic Liquids Drive CO2 Recycling From Subducted Marls and Limestones
Geophysical Monograph Series, Page 209-221., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Erwin Schettino, Stefano Poli
wiley +2 more sources
Electron Beam Welding of 2099-T83 Aluminium-lithium Alloy Thick Plates [PDF]
MATEC Web of Conferences, 2019 The paper deals with the welding of AW 2099-T83 aluminium lithium alloy being used for construction of lower wing stringers. The thickness of AW 2099-T83 aluminium lithium alloy was 25.4 mm.
Bárta Jozef +3 more
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Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
Electron Beam Welding In-Process Control and Monitoring
Proceedings of the International Conference on Applied Innovations in IT, 2013 This work presents the results of an investigation of processes in the melting zone during Electron Beam Welding (EBW) through analysis of the secondary current in the plasma.The studies show that the spectrum of the secondary emission signal during ...
Dmitriy Trushnikov
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Advanced Engineering Materials, EarlyView.CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz +4 more
wiley +1 more source
Investigation of conduction to keyhole mode transition [PDF]
, 2012 There are two very distinct welding modes in laser welding, keyhole and conduction mode. The characteristics of keyhole laser welding; mainly high penetration, high productivity and high aspect ratio have led the industry to focus more on this mode.
Goncalves Assuncao, Eurico
core +6 more sources