Results 81 to 90 of about 11,321,876 (282)

Efficient methods of X-ray diffraction pattern inversion

open access: yesResults in Physics, 2019
An innovative, computational approach to the problem of X-ray diffraction pattern inversion is presented. The technique approximates the electron density of the trial structures encountered during the structure-fitting part of the inversion process with ...
Ian Gregory Shuttleworth
doaj   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

open access: yesAdvanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter   +10 more
wiley   +1 more source

Characterization of defect structures in nanocrystalline materials by X-ray line profile analysis [PDF]

open access: yes, 2007
X-ray line profile analysis is a powerful alternative tool for determining dislocation densities, dislocation type, crystallite and subgrain size and size-distributions, and planar defects, especially the frequency of twin boundaries and stacking faults.
Tamás Ungár   +3 more
core   +1 more source

Semantic Modeling in Materials Science and Engineering With Platform MaterialDigital Core Ontology 3.0

open access: yesAdvanced Engineering Materials, EarlyView.
The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling   +15 more
wiley   +1 more source

X-ray diffraction on a single crystal: first Bragg peak

open access: yes, 2010
Single crystal X-ray diffractometer experiment with lithium fluoride crystal showing the first diffraction peak at the first Bragg angle. From TLP:http://www.msm.cam.ac.uk/doitpoms/tlplib/xray-diffraction/single_crystal.php > X-ray diffraction [...]
DoITPoMS, University of Cambridge
core  

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

open access: yesAdvanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Lattice Deformation Measurement under Shock Wave Loading by Pulsed X-ray Diffraction

open access: yesYuanzineng kexue jishu, 2022
Shock of condensed matter is ubiquitous in nature, yet a full understanding of the response when shock waves propagate into solids is still lacking because of a lack of real-time microstructural data. Pulsed X-ray diffraction technique is being developed
TANG Bo;HEI Dongwei;MA Ge;XIA Jingtao;SHENG Liang;WEI Fuli;LUO Jianhui;LI Yunliang;TAN Shushun
doaj  

Redetermination of the γ-form of tellurium dioxide

open access: yesIUCrData, 2017
The crystal structure of γ-TeO2 was redetermined on the basis of single-crystal X-ray diffraction data. The previous structure determination of this modification was based on laboratory powder X-ray diffraction data [Champarnaud-Mesjard et al. (2000). J.
Matthias Weil
doaj   +1 more source

X-ray diffraction on a single crystal: second Bragg peak

open access: yes, 2010
Single crystal X-ray diffractometer experiment with lithium fluoride crystal showing the second diffraction peak at the second Bragg angle.
DoITPoMS, University of Cambridge
core  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

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