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Dynamic Shock Wave-Induced Amorphous-to-Crystalline Switchable Phase Transition of Lithium Sulfate

Abstract : In recent years, there have been significant efforts made by materials science researchers to search for new phase-change materials, especially those possessing the caliber of influencing switchable phase changes, i.e., crystal-crystal and crystal-amorphous changes. Phase-change materials of such kind have attracted tremendous demand for technologically important applications, such as current resistive memories and thermal energy storage. In the present article, the switchable amorphous-glassy-crystalline-amorphous phase transitions occurring in the samples of lithium sulfate have been systematically experimented and demonstrated at dynamic shock wave-loaded conditions of various counts of shock pulses. The shocked samples have been evaluated using powder X-ray diffraction (PXRD), ultraviolet-visible (UV-vis) spectroscopy, and Raman spectroscopy. The shock wave-induced orientational order-disorder of the SO4 tetrahedron and the positional disorders of the lithium atoms led to the observed switchable phase transitions with respect to the number of shock pulses.
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https://hal.archives-ouvertes.fr/hal-03629794
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Friday, May 6, 2022 - 10:30:42 AM
Last modification on : Thursday, May 19, 2022 - 4:24:52 PM

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A. Sivakumar, S. Sahaya Jude Dhas, Shubhadip Chakraborty, Raju Suresh Kumar, Abdulrahman Almansour, et al.. Dynamic Shock Wave-Induced Amorphous-to-Crystalline Switchable Phase Transition of Lithium Sulfate. Journal of Physical Chemistry C, American Chemical Society, 2022, 126 (6), pp.3194-3201. ⟨10.1021/acs.jpcc.1c09411⟩. ⟨hal-03629794⟩

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