Module 2 – Powder X-Ray Diffraction Applications (21 – 25 October 2013)

Courses
"Structure Determination using Powder X-Ray Diffraction"
Prof. Robert Dinnibier (Max Planck Institute for Solid State Research in Stuttgart, Alemanha)

Fundamental and applied aspects of structure solution from powder diffraction data. Indexing, Determining the Space Group, Determining initial structure (different methods and approach), Refinement structure parameters (Rietveld Method), Validation of crystal structure.
Practices: several examples and tutorial with softwares

"Determination of crystalline sizes and microstrain"
Prof. Paolo Scardi (Department of Civil, Environmental & Mechanical Engineering, University of Trento, Italy)

Overview of diffraction methods applied to the analysis of the microstructure of materials. Since crystallite size and the presence of lattice defects have a decisive influence on the properties of many materials, information about this microstructure is of vital importance in developing and assessing materials for practical applications. The most powerful and usually non-destructive evaluation techniques available are X-ray diffraction.  Diffraction-line broadening methods for determining crystallite size and atomic-scale strain due, e.g. to dislocations, and methods for the analysis of residual (macroscale) stress.

Theoretical Aspects
Line Profile Analysis
Analysis of the Full Diffraction Pattern
Whole Powder Pattern Modeling: Theory and Applications
Full Profile Analysis of X-ray Diffraction Patterns for Investigation of Nanocrystalline Materials
Crystalline size distribution modeling in Rietveld Refinament
Practice: several examples and tutorial with softwares

Conferences

"Applications of Synchrotron Radiation in Powder X-Ray Diffraction"
Prof. Eduardo Granado (Instituto de Física Gleb Wataghin (IFGW) da Unicamp, Brasil)