Results 51 to 60 of about 1,073,150 (315)

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Cross-section of the photoeffect averaged over the atomic electrons

Ядерна фізика та енергетика, 2016
Simple approximate method for calculation of the cross sections of the photoeffect averaged over all atomic electrons is suggested. This method is based on the statistical Thomas - Fermi model with a new additional assumption.
S. N. Fedotkin
doaj  

Measuring the Intra-Atomic Exchange Energy in Rare-Earth Adatoms

Physical Review X, 2020
We present the first experimental determination of the intra-atomic exchange energy between the inner 4f and the outer 6s5d shells in rare-earth elements.
Marina Pivetta, François Patthey, Igor Di Marco, Arya Subramonian, Olle Eriksson, Stefano Rusponi, Harald Brune   +6 more
doaj   +1 more source

Atomic Identification of Interfaces in Individual Core@shell Quantum Dots

Advanced Science, 2021
CdSe@CdS Core@shell quantum dots (QDs) have been widely studied in recent years, due to their architecture which allows to tailor properties by controlling structure and composition.
Guiju Liu, Wenshuang Liang, Xuyan Xue, Federico Rosei, Yiqian Wang   +4 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

An analytical expression for the K shell ionization cross section of some heavy atomic elements by electron impact [PDF]

مجلة التربية والعلم, 1970
: An analytical expression is proposed to describe the k shell ionization cross section by electron impact for some heavy atomic elements (Ho, Yb, W, Au, Pb, and U) had been presented.
Salim Al-Shamma, Muzahim Azawi, Lubna Ismail   +2 more
doaj   +1 more source

Atomic Mass Formula with Empirical Shell Terms [PDF]

Progress of Theoretical Physics, 1975
An advance was made in the study of empirical mass formulas1,2 by including new experimental data and by applying a new statistical treatment. Our mass formula consists of a gross part and proton and neutron shell parts. The shell parameter values were determined by a new statistical method, whose essential point was to take into account the intrinsic ...
Masahiro Uno, Masami Yamada
openaire   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Investigation of the effect of model structure type on the thermal performance of phase change materials through molecular dynamics simulation

Case Studies in Thermal Engineering
Using molecular dynamics (MD) simulation, the thermal efficacy of phase change materials (PCMs) in solar energy applications and solar thermal energy storage was evaluated.
Walid Aich, Ali Basem, Abbas J. Sultan, Amer Ali Ghabra, Aboulbaba Eladeb, Lioua Kolsi, Soheil Salahshour, Sh. Baghaei   +7 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

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, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source