Results 61 to 70 of about 11,181,629 (286)
Advanced Science, EarlyView.This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong +7 more
wiley +1 more source
Optimization of doping process parameters of cerium vanadates doped with Be, Mg, Ca, Sr and Ba ions
Journal of the Turkish Chemical Society, Section A: Chemistry, 2016 In this research Taguchi method was applied to determine optimum parameters of doping process of cerium vanadate with Be, Mg, Ca, Sr and Ba ions. Percentage and type of doping ions are used as parameters in optimization process applied as orthogonal ...
Gülşah Çelik Gül
doaj +1 more source
Bayesian approach to the Rietveld refinement of Poisson-distributed powder diffraction data
, 2010 The Rietveld method is based on a weighted least-squares fit of a model diffraction pattern to the step-scan data of a complete experimental X-ray or neutron diffraction pattern.
J. Bergmann, T. Monecke
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Rietveld Refinement ZnO powders (Fullprof)
, 2022 The authors calculated a complete lattice parameters characterization by Rietveld refinement using MAUD program. Input information, such as cell parameters, atomic positions, and space groups, was collected from the International Centre for Diffraction ...
Lozano Rosas, R (via Mendeley Data)
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Advanced Science, EarlyView.This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li +8 more
wiley +1 more source
Bulletin of the Mineral Research and ExplorationThe Rietveld method refines a theoretical line profile until it fits the measured profile using a least squares methodology. In Rietveld method, complete qualitative mineral determination, mineralchemistry, appropriate XRD analytical conditions and ...
Arif Talay, Cumhur Özcan Kiliç
doaj +1 more source
First-principles calculation on electronic properties of zinc oxide by zinc–air system
Journal of King Saud University: Engineering Sciences, 2017 First-principles calculations are performed to study the electronic properties of zinc oxide (ZnO) formed on an anode after discharging a Zn–air system.
Ahmad Azmin Mohamad +6 more
doaj +1 more source
New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3
Advanced Science, EarlyView.ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu +17 more
wiley +1 more source
MATEC Web of Conferences, 2013 Qualitative XRD phase-analysis of four (x = 0.10, 0.20, 0.30, 0.40) selected compositions of the Sr(0.5+x)Sb(1−x)Fe(1+x)(PO4)3(0 < x < 0.50) system was undertaken. XRD data shows the absence of a continuously solid solution.
Aatiq A. +4 more
doaj +1 more source
Relational Concurrent Refinement: Automata [PDF]
, 2009 Data refinement in a state-based language such as Z is defined using a relational model in terms of the behaviour of abstract programs. Downward and upward simulation conditions form a sound and jointly complete methodology to verify relational data ...
Derrick, John +4 more
core +1 more source