Results 121 to 130 of about 44,705 (305)

Quantitative phase analysis of α-Fe impurity in Ce₂Fe₁₇ matrix from neutron powder diffraction data

, 1993
The multicomponent Rietveld profile refinement technique for powder neutron diffraction patterns has been applied to arrive at a quantitative phase analysis of crystalline Ce2Fe17 and α-Fe impurity in a powder specimen of ...
Yusuf, Sk. Mohammad
core   +1 more source

Deep Learning Approaches for Classifying Crack States With Overload and Predicting Fatigue Parameters in a Titanium Alloy

Advanced Intelligent Systems, EarlyView.
This study proposes a deep learning approach to evaluate the fatigue crack behavior in metals under overload conditions. Using digital image correlation to capture the strain near crack tips, convolutional neural networks classify crack states as normal, overload, or recovery, and accurately predict fatigue parameters.
Seon Du Choi, Suman Timilsina, Youn Woo Shin, Yong Nam Kwon, Kee‐Sun Sohn, Ji Sik Kim   +5 more
wiley   +1 more source

An investigation into the growth and characterisation of thin film radioluminescent phosphors for neutron diffraction analysis

, 2010
This investigation studied the growth and characterisation of thin film phosphors to examine the feasibility of enhancing a solid-state neutron scintillation detector system for increased detection resolution and detection rate.
Miller, T
core  

Kinetic neutron diffraction as an aid to processing

, 2004
The development of high intensity neutron sources coupled with improvements in instrumentation has made it possible to collect high quality diffraction patterns extremely rapidly, and studies of the kinetics of solid-state processes in real time are now ...
Kilcoyne, SH
core   +1 more source

Predicting Crystal Structures and Ionic Conductivities in Li3YCl6−xBrx Halide Solid Electrolytes Using a Fine‐Tuned Machine Learning Interatomic Potential

Advanced Intelligent Systems, EarlyView.
This study refines the Crystal Hamiltonian Graph Network to predict energies, structures, and lithium‐ion dynamics in halide electrolytes. By generating ordered structural models and using an iterative fine‐tuning workflow, we achieve near‐ab initio accuracy for phase stability and ionic transport predictions.
Jonas Böhm, Aurélie Champagne
wiley   +1 more source

A Portable Miniature Cryogenic Environment for In Situ Neutron Diffraction

Crystals
Neutron diffraction instruments offer a platform for materials science and engineering studies at extended temperature ranges far from ambient. As one of the widely used neutron sample environment types, cryogenic furnaces are usually bulky and complex ...
Yan Chen, Dunji Yu, Ke An
doaj   +1 more source

Grain size, size-distribution and dislocation structure from diffraction peak profile analysis

, 2002
Diffraction peak profile analysis (or Line Profile Analysis, LPA) has recently been developed to such an extent that it can be applied as a powerful method for the characterization of microstructures of crystalline materials in terms of crystallite ...
Gubicza, Jenő, Ungár, Tamás
core  

Diffractive lenses for neutron techniques

Scientific Reports
Abstract Many neutron techniques can greatly benefit from enhanced neutron lenses for focusing and imaging. In this work, we revisit the potential of diffractive optics for neutron beams, building on advanced high-resolution nano-lithography techniques developed for the fabrication of X-ray diffractive optics used at synchrotron facilities ...
Mano raj Dhanalakshmi Veeraraj, Di Qu, Shuai Zhao, Peng Qi, Konstantins Jefimovs, Matteo Busi, Joachim Kohlbrecher, Christian David, Markus Strobl, Joan Vila-Comamala   +9 more
openaire   +3 more sources

Structural Characterisation of Bioactive Glasses [PDF]

, 2007
Melt-quenched glasses containing SiO2, CaO, Na2O and P2O5, and sol-gel derived glasses containing SiO2 and CaO are known to have bioactive properties. Foaming of binary sol-gel derived bioactive glasses containing SiO2 and CaO can be used to produce ...
Fitzgerald, Victoria
core  

Adsorption of alkyl amides: monolayer structures and mixing behaviour

, 2011
In this work monolayers of alkyl amides adsorbed on a graphite surface have been successfully identified and investigated using a combination of synchrotron X-ray and neutron diffraction and Differential Scanning Calorimetry (DSC).

core   +1 more source