Results 61 to 70 of about 547,876 (336)

Spherical aberration correction in a scanning transmission electron microscope using a sculpted foil

open access: yes, 2017
Nearly twenty years ago, following a sixty year struggle, scientists succeeded in correcting the bane of electron lenses, spherical aberration, using electromagnetic aberration correction.
Arie, Ady   +7 more
core   +1 more source

From attosecond to zeptosecond coherent control of free-electron wave functions using semi-infinite light fields [PDF]

open access: yes, 2017
Light-electron interaction in empty space is the seminal ingredient for free-electron lasers and also for controlling electron beams to dynamically investigate materials and molecules. Pushing the coherent control of free electrons by light to unexplored
Barwick, B.   +10 more
core   +3 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

Synthesis and Characterization of Diesel, Kerosene and Candle Wax Soot’s

open access: yesInternational Journal of Electrochemical Science, 2012
Diesel, kerosene and candle wax have been used as carbon sources for the production of carbon nanomaterial without a precursor catalyst. Nanomaterials formed in the process were analysed by High resolution transmission electron microscope (HR-TEM), Raman
Ntaote David Shooto, Ezekiel Dixon Dikio
doaj   +1 more source

Facile construction of a multilayered interface for a durable lithium‐rich cathode

open access: yesCarbon Energy, 2023
Layered lithium‐rich manganese‐based oxide (LRMO) has the limitation of inevitable evolution of lattice oxygen release and layered structure transformation. Herein, a multilayer reconstruction strategy is applied to LRMO via facile pyrolysis of potassium
Zhou Xu   +10 more
doaj   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Comparison of different sources for laboratory X-ray microscopy

open access: yes, 2012
This paper describes the setup of two different solutions for laboratory X-ray microscopy working with geometric magnification. One setup uses thin-film transmission targets with an optimized tungsten-layer thickness and the electron gun and optics of an
Ebensperger, Thomas   +4 more
core   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Prospects for versatile phase manipulation in the TEM: beyond aberration correction

open access: yes, 2015
In this paper we explore the desirability of a transmission electron microscope in which the phase of the electron wave can be freely controlled. We discuss different existing methods to manipulate the phase of the electron wave and their limitations. We
Béché, Armand   +6 more
core   +1 more source

Optimization of Reaction Conditions for High Yield Synthesis of Carbon Nanotube Bundles by Low-Temperature Solvothermal Process and Study of their H2 Storage Capacity [PDF]

open access: yes, 2013
Synthesis of Carbon Nanotube bundles has been achieved by simple and economical solvothermal procedure at very low temperature of 180°C. The product yield obtained was about 70-75.
Agarwal, S., Krishnamurthy, G.
core   +1 more source

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