Journal
APPLIED PHYSICS LETTERS
Volume 118, Issue 7, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0040437
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Funding
- Foundation of National Key Laboratory of Shock Wave and Detonation Physics [JCKYS2018212002, 6142A0301010117, 6142A03180101]
- National Natural Science Foundation of China [11702270, 12072331]
- Science Challenge Project [TZ2018001]
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The study found that the liquid-liquid phase transition in molten Ce is strongly rate dependent, with a small volume change and a timescale of around 200ns.
The identification of the liquid-liquid phase transition (LLPT) in liquids under shock compression is a long-standing challenge. In this Letter, by designing shock-release experiments in shock-driven molten Ce, we observe a first-order LLPT along the release path. The volume change associated with the transition is less than 6%, much smaller than the one (14%) obtained in static compression experiments, indicating that the LLPT in molten Ce is strongly rate dependent. The identified timescale for the LLPT is on the order of 200ns. Our results, therefore, provide kinetic information of the LLPT in an unprecedented manner, which is extremely valuable for the construction of a non-equilibrium phase diagram.
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