Results 61 to 70 of about 486,453 (314)
Concept of a laser-plasma-based electron source for sub-10-fs electron diffraction
Physical Review Accelerators and Beams, 2016 We propose a new concept of an electron source for ultrafast electron diffraction with sub-10-fs temporal resolution. Electrons are generated in a laser-plasma accelerator, able to deliver femtosecond electron bunches at 5 MeV energy with a kilohertz ...
J. Faure +5 more
doaj +1 more source
ORIENTED FILTRATION OF DIGITAL ELECTRON DIFFRACTION IMAGES
Радіоелектронні і комп'ютерні системи, 2019 A mathematical model, method and software are developed for the selection of spatial regions (bands) from their superposition on digital electron diffraction images, and also for the subsequent oriented filtration of images of bands.
С. В. Баловсяк +2 more
doaj +1 more source
Application of Electron Backscatter Diffraction to Calcite-Twinning Paleopiezometry
Geosciences, 2022 Electron backscatter diffraction (EBSD) was used to determine the orientation of mechanically twinned grains in Carrara marble experimentally deformed to a small strain (≤4%) at room temperature and at a moderate confining pressure (225 MPa).
Ernest Rutter +2 more
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Impact of Surface Roughness on the Yield Drop of Hot‐Rolled AZX311 Mg Alloy
Advanced Engineering Materials, EarlyView.Rough‐surfaced AZX311 Mg alloy samples have significantly lower yield strength than polished ones due to stress concentrators forming at V‐notch irregularities. Surface profilometry confirms higher Ra values for rough samples. Highest hardness values were observed near scratched surfaces, indicating strain localization effects near the rough surface ...
Hafiz Muhammad Rehan Tariq +4 more
wiley +1 more source
Noninvasive time-sorting in radio frequency-compressed ultrafast electron diffraction
Structural Dynamics, 2021 We demonstrate a noninvasive time-sorting method for ultrafast electron diffraction (UED) experiments with radio frequency (rf)-compressed electron beams.
Lingrong Zhao +8 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Nanotechnology Reviews, 2014 High-resolution electron microscopy and electron diffraction are quite useful for structural characterization of perovskite-type superconducting copper oxides on the atomic scale.
Oku Takeo
doaj +1 more source
The Effect of Dielectric Crystals on the Electron Diffraction [PDF]
arXiv, 2018 A dynamic diffraction theory is developed for describing electron diffraction by dielectric crystals in a strong electromagnetic field. It is shown that additional diffraction maxima arise in an electromagnetic field, their intensity appreciably depending on the field strength.
arxiv
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.The microstructure of Cr‐rich Cr‐Si‐alloys is maintained by alloying with Ge, Pt, and Mo. The effects of these elements on A15‐phase fraction, partitioning, microstructural stability, grain size, and hardness are combinable. Molybdenum is found to be the most promising alloying element for microstructural stability during high‐temperature exposure.
Anke Silvia Ulrich +6 more
wiley +1 more source