Séminaire LGF – Aditya Shukla – 12 octobre 2026

Un séminaire LGF aura lieu le Lundi 12 Octobre 2026 à 13h30 en salle J3.03, présenté par Aditya Shukla, post-doctorant à l’ESRF (The European Synchrotron, Grenoble), invité par Andras Borbely.

Titre

Diffraction imaging as a tool to understand the multiscale nature of polycrystalline microstructures

Résumé

The properties of polycrystalline materials are governed by their three-dimensional microstructure , grain orientations, boundary character, internal strain and second-phase particles. Yet most of what we know about microstructure evolution comes from surface or near-surface techniques. In this talk I will present a hierarchical approach to bulk 3D characterization using high-energy X-ray diffraction imaging, spanning  orders of magnitude. I will focus on recent developments in scanning 3DXRD and dark-field X-ray microscopy, and on my own contributions to both. I will showcase the utility of these methods across different fields, with examples including grain boundary segregation in solar cell materials and abnormal grain growth in Nickel metal.