Results 91 to 100 of about 1,914,697 (336)
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
Perfect X-ray focusing via fitting corrective glasses to aberrated optics
Nature Communications, 2017 X-ray optics are notoriously challenging to fabricate due to the strict tolerances that result from the short wavelength of radiation. Here, Seibothet al.
Frank Seiboth +20 more
doaj +1 more source
Trapezoid-kinoform zone plate lens - a solution for efficient focusing in hard X-ray optics. [PDF]
J Synchrotron Radiat, 2022 Tong X +9 more
europepmc +1 more source
Advanced Engineering Materials, EarlyView.This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel +7 more
wiley +1 more source
Nature Communications, 2020 Here the authors study atomic scale dynamics in water by using X-ray photon correlation spectroscopy. They use a split-and-delay optics with self-seeding of X-rays to generate pulses of enough energy and controlled time delay between two X-ray pulses.
Yuya Shinohara +7 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring +2 more
wiley +1 more source
Three-dimensional electronic spectroscopy of excitons in asymmetric double quantum wells
New Journal of Physics, 2013 We utilize a three-dimensional (3D) visible spectroscopy to reveal and explore coherent coupling between excitons localized to GaAs quantum wells separated by barriers 4 and 6 nm wide. The coupled excitons were energetically separated by 43 meV, close to
C R Hall +3 more
doaj +1 more source
X-Ray Optics for X-Ray Laser Research Applications
Short Wavelength Coherent Radiation: Generation and Applications, 1988 State of the art capabilities in soft x-ray lenses, multilayer mirrors, beamsplitters, and synthetically generated holograms are reviewed. Application of these capabilities in recent x-ray laser cavity experiments, and to the development of a soft x-ray interferometer and a high intensity (≳1013 watt/cm2) soft x-ray laser are discussed.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker +5 more
wiley +1 more source
Rheo-Optical Studies on the Deformation Mechanism of Semicrystalline Polymers. III. An Improved Technique for Oscillatory Measurements in Rheo-Optics and Its Application to Dynamic X-Ray Diffraction Measurements [PDF]
, 1978 Shoji Suehiro +3 more
openalex +1 more source