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Open AccessJournal Article

The Rietveld method

R. A. Young
- 01 Jan 1993 - 
- Vol. 30, Iss: 4
TLDR
In this paper, the early days of the Rietveld method are described, along with a retrospective view of its application in various areas of physics, such as X-ray and neutron analysis.
Abstract
Introduction to the Rietveld Method 1. The early days: a retrospective view 2. Mathematical aspects of Rietveld refinement 3. The flow of radiation in a polycrystalline material 4. Data collection strategies: fitting the experiment to the need 5. Background modelling in Rietveld analysis 6. Analytical profile fitting of X-ray powder diffraction profiles in Rietveld analysis 7. Crystal imperfection broadening and peak shape in the Rietveld method 8. Bragg reflection profile shape in X-ray powder diffraction patterns 9. Restraints and constraints in Rietveld refinement 10. Rietveld refinement with time-of-flight powder diffraction data from pulsed neutron sources 11. Combined X-ray and neutron Rietveld refinement 12. Rietveld analysis programs Rietan and Premos and special applications 13. Position - constrained and unconstrained powder-pattern-decomposition methods 14. Ab initio structure solutions with powder diffraction data

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Calcium aluminates hydration in presence of amorphous SiO2 at temperatures below 90 °C

TL;DR: The stoichiometry of Ca3Al2(SiO4)3� x(OH)4x (0p3� xp0.334), which was the main crystalline product, was established by Rietveld refinement of X-ray and neutron diffraction data and by transmission electron microscopy as discussed by the authors.
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Dissolution kinetics of C–S–H gel: Flow-through experiments

TL;DR: In this article, a dissolution rate law for C-S-H gel with Ca/Si ratio equal to 0.83 is proposed based on the dissolution rates normalized to the final BET surface area.
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Synthesis and Structure of Perrhenate Sodalite

TL;DR: In this paper, the structure of sodalite was determined from Rietveld refinement of experimental X-ray powder diffraction data, which showed that this compound adopts the cubic sodalites structure (space group P 4 ¯ 3 n, #218) with a coefficient of 9.1528 (1)
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Microstructure-property relationships of 420 stainless steel fabricated by laser-powder bed fusion

TL;DR: In this paper, the authors report the mechanical properties, microstructure and corrosion behavior 99+ % dense 420 stainless steel parts fabricated by laser-powder bed fusion (L-PBF).