Date: 27 June 2023
Time: 11:30am NZST, 9:30am AEST, 7:30am AWST
Abstract:
Electron Backscatter Diffraction (EBSD) has become a well-accepted microanalysis technique used for the routine characterisation of crystalline materials. Recent developments in hardware and software have extended the capability of this technique. Direct detectors, in contrast with phosphor-screen-based indirect detectors, provide higher sensitivity, higher information fidelity, and improved pattern quality. The application of dynamic diffraction-based forward model matching, termed spherical indexing, to determine crystallographic orientation and phase has improved indexing rates compared with traditional Hough-based indexing and opened new routes for resolving pseudosymmetry issues and better orientation precision. All this technology though requires a usable EBSD pattern, which in turn requires adequate specimen preparation. In this presentation, advances and examples of direct detection, spherical indexing, and sample preparation will be discussed, with examples showing improved EBSD characterisation capability enabled by these advances.
Bio:
Matt Nowell is the EBSD Product Manager at EDAX and has a passion for EBSD and microstructural characterisation. Matt joined TexSEM Labs (TSL) upon graduation from the University of Utah in 1995 with a degree in Materials Science and Engineering. At TSL, he was part of the team that pioneered the development and commercialisation of EBSD and OIM. After EDAX acquired TSL in 1999, he joined the applications group to help continue to develop EBSD as a technique, and integrate structural information with chemical information collected using EDS.
Within EDAX, Matt has held several roles, including product management, business development, customer and technical support, engineering, and applications support and development. Matt has published over 100 papers in a variety of application areas. He greatly enjoys the opportunity to interact with scientists, engineers, and microscopists to help expand the role that EBSD plays in materials characterisation. In his spare time, Matt enjoys playing golf and pondering if changing the texture of his clubs will affect his final score.
