scispace - formally typeset
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

read more

Citations
More filters
Journal ArticleDOI

Incorporation of microabsorption corrections into Rietveid analysis

TL;DR: In this article, two quantitative expressions describing the microabsorption effect are incorporated into the DBWS 9006-PC Rietveid program for scattering data obtained from YBa2Cu3O7-powder samples with different degree of surface roughness but approximately identical bulk structure.
Journal ArticleDOI

Wide band gap tunability of bulk Cd1−xCaxO

TL;DR: In this paper, the lattice parameter variation and the band gap tuning of CdO with Ca were reported by preparing thermodynamically stable Cd1−xCaxO solid solution in the entire composition range 0≤x≤1.8.
Journal ArticleDOI

Total scattering studies of silica polymorphs: similarities in glass and disordered crystalline local structure

TL;DR: In this paper, the average 180° Si−O−Si linkage between two polymorphs of silica was found to be similar to HP-tridymite and β-cristobalite, both dynamically disordered crystalline phases, but only out to distances of 7.5 A, beyond which the structures diverged.
Journal ArticleDOI

Classification of stacking faults and their stepwise elimination during the disorder → order transformation of nickel hydroxide

TL;DR: Hydrothermal treatment of a poorly ordered nickel hydroxide slurry at different temperatures and different durations shows that the stacking faults are removed in a stepwise manner.
Journal ArticleDOI

Effect of sintering temperature on mineral composition and heavy metals mobility in tailings bricks.

TL;DR: The results indicate that the sintering process facilitates the combination of Cu, Zn, Pb and Cd offering an effective and safe method for the application of materials that contain tailings.