MCF Seminar

March 27, 2023

10:00 a.m. - 10:45 a.m. ET

Mehl Room, Wean Hall 2nd Floor

10-Year’s Journey of Lab-base X-ray Diffraction Contrast Tomography: Advancements and Challenges

presented by Erik Lauridsen, CEO, Xnovo Technology ApS, Køge, Denmark

Mapping the 3D-spatial crystallographic orientation of polycrystalline materials holds tremendous value for 3D materials science and related phenomena, as the properties and performance of materials are intricately linked to their 3D microstructural morphology. 3D non-destructive crystallographic imaging techniques were first possible at synchrotron light sources in the early 2000s, originating as 3D X-ray diffraction microscopy (3DXRD) and now has multiple variants such as synchrotron diffraction contrast tomography (DCT) and high energy diffraction microscopy (HEDM) at various beamlines across the world. The 3D non-destructive diffraction imaging capability has now become a significant characterization tool for 3D materials science and led to several breakthrough studies uncovering the dynamics of microstructural evolution in polycrystalline materials.

In response to the need for wider access to non-destructive 3D grain mapping techniques, substantial efforts have been made over the past decade to establish DCT in a laboratory setting. At the time being, Lab-based DCT has been serving many users worldwide for routine, non-destructive, time-evolution studies of grain structure over meaningful sample volumes in the laboratory. 

This talk will provide an overview of the development journey of lab-based DCT, including recent advancements in data acquisition approaches that address the sample volume limitations of synchrotron-based and electron microscopy techniques. Additionally, the current challenges of lab-based DCT will be discussed, along with ongoing efforts to improve its performance and enhance its capabilities.

Space to attend this event in-person will be limited.  A virtual live presentation option will also be available. Please pre-register. 

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