Results 91 to 100 of about 135,438 (314)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Dynamic Response and Energy Conversion of Coupled Cantilevers with Dual Piezoelectric–Triboelectric Harvesting Mechanisms

Micromachines
This study presents a Hybrid Piezoelectric–Triboelectric Energy Harvester (HPTEH) composed of two coupled cantilever beams, designed to enhance energy generation and broaden bandwidth by combining piezoelectric and triboelectric mechanisms. A theoretical
Mohammad Alghamaz, Leila Donyaparastlivari, Alwathiqbellah Ibrahim   +2 more
doaj   +1 more source

Limitation of the Gaussian approximation in beam-beam simulations

Physical Review Special Topics. Accelerators and Beams, 2000
The soft-Gaussian approximation is often employed in computer simulations of strong-strong beam-beam interactions in storage rings. Its defect on the coherent oscillation frequency is pointed out and a possible remedy using Hermitian polynominals is ...
Kaoru Yokoya
doaj   +1 more source

Polarimetry for 3He Ion Beams from Laser–Plasma Interactions [PDF]

, 2022
C. Zheng, P. Fedorets, R. Engels, Chrysovalantis Kannis, Ilhan Engin, S. Möller, Robert Swaczyna, Herbert Feilbach, H. Glückler, Manfred Lennartz, Heinz Pfeifer, Johannes Pfennings, Claus M. Schneider, Norbert Schnitzler, Helmut Soltner, M. Büscher   +15 more
openalex   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Collective instabilities and beam-plasma interactions in intense heavy ion beams

Physical Review Special Topics. Accelerators and Beams, 2004
This paper presents a survey of the present theoretical understanding of collective processes and beam-plasma interactions affecting intense heavy ion beam propagation in heavy ion fusion systems.
Ronald C. Davidson, Igor Kaganovich, Hong Qin, Edward A. Startsev, Dale R. Welch, David V. Rose, Han S. Uhm   +6 more
doaj   +1 more source

Beam-Beam Interaction with a Crossing Angle [PDF]

, 2003
A fairly accurate mapping for the beam-beam interaction with a crossing angle is proposed. Some simple results of the weak-strong tracking are shown: the beam-beam interaction becomes more serious when the crossing angle increases until the normalized angle {Phi} becomes about a half. Above this, it becomes less serious.
openaire   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

Advanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan, Jack Keddie, Byoungyoul Park, Hyun‐Joong Chung   +3 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

First experimental evidence of a beam-beam long-range compensation using wires in the Large Hadron Collider

Physical Review Accelerators and Beams
In high intensity and high energy colliders, such as the CERN Large Hadron Collider (LHC) and its future high-luminosity upgrade, interactions between the two beams around the different interaction points impose machine performance limitations.
A. Poyet, A. Bertarelli, F. Carra, S. D. Fartoukh, N. Fuster-Martínez, N. Karastathis, Y. Papaphilippou, M. Pojer, S. Redaelli, A. Rossi, K. Skoufaris, M. Solfaroli Camillocci, G. Sterbini   +12 more
doaj   +1 more source