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Meeting MS&T23: Materials Science & Technology
Symposium Phase Transformations in Ceramics: Science and Applications
Presentation Title Phase Transformations in Ceramic Materials under Extreme External Forcing
Author(s) Eric O'Quinn, Alexandre Solomon, Casey Corbridge, Maik Lang
On-Site Speaker (Planned) Eric O'Quinn
Abstract Scope Phase transformations in ceramics play a critical role in developing new materials with desirable properties, such as metastable phases or structures that can accommodate unconventional order. This talk presents recent experimental investigations on the phase transformations in ceramic materials under extreme external forcing. We examined simple sesquioxide (A2O3) materials exposed to relativistic ions and high energy ball milling using synchrotron X-ray diffraction and neutron total scattering techniques to examine the multi-scale structural modifications. By varying parameters such as ion species, ion energy, milling tools, and operating speed, we drove a variety of structural transformations in the simple cubic sesquioxides including transitions to high-temperature and high-pressure variants that are otherwise irrecoverable. These results contribute toward facilitating the discovery of novel materials with unique properties and functionality.


Computational Study of Site-disordered AgSbI4
Crystal Structure Solution and Phase Transformations of CaZr4(PO4)6 and SrZr4(PO4)6
Effect of Cations Decoration on Ti3C2Tx MXene, its Stability and Phase Transformation at High Temperatures
Elevated Temperature Phase Control of Two-dimensional Mo2TiC2Tx Carbide Through Defect Engineering
Enhancing Oxidation Resistance of Silicon Nitride Using Ca2+ Stabilizer
Microstructural Evolution and Associated Kinetics of Seeded Solid State Single Crystal Growth of CoTi2O5
Phase Stability and Cation Partitioning in Multi-rare Earth Aluminates and Zirconates
Phase Transformations in Ceramic Materials under Extreme External Forcing
Progress on Phase Stability of Substituted Rare Earth Disilicate Compositions for Environmental Barrier Coatings
Spinodal Decomposition in Ferroelectric Crystals
Structural Evolution of MgAl2O4 and NiAl2O4 Disordered Spinel Oxides Studied via In Situ Neutron Total Scattering
Using Total Scattering Techniques to Explore Fundamental Aspects of the Structural Organization in Weberite-type Tantalate Oxides

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