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Pressure-Induced Phase Transitions in Sesquioxides
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Mechanisms of Pressure-Induced Phase Transitions by Real-Time Laue Diffraction

High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, USA
Physics Division-Physical & Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
Author to whom correspondence should be addressed.
Crystals 2019, 9(12), 672;
Received: 30 November 2019 / Revised: 10 December 2019 / Accepted: 11 December 2019 / Published: 14 December 2019
(This article belongs to the Special Issue Pressure-Induced Phase Transformations)
Synchrotron X-ray radiation Laue diffraction is a widely used diagnostic technique for characterizing the microstructure of materials. An exciting feature of this technique is that comparable numbers of reflections can be measured several orders of magnitude faster than using monochromatic methods. This makes polychromatic beam diffraction a powerful tool for time-resolved microstructural studies, critical for understanding pressure-induced phase transition mechanisms, by in situ and in operando measurements. The current status of this technique, including experimental routines and data analysis, is presented along with some case studies. The new experimental setup at the High-Pressure Collaborative Access Team (HPCAT) facility at the Advanced Photon Source, specifically dedicated for in situ and in operando microstructural studies by Laue diffraction under high pressure, is presented. View Full-Text
Keywords: Laue diffraction; high pressure; mechanisms of phase transitions Laue diffraction; high pressure; mechanisms of phase transitions
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MDPI and ACS Style

Popov, D.; Velisavljevic, N.; Somayazulu, M. Mechanisms of Pressure-Induced Phase Transitions by Real-Time Laue Diffraction. Crystals 2019, 9, 672.

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