Liquid-to-liquid transition around the glass-transition temperature in a glass-forming metallic liquid

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F22%3A43896614" target="_blank" >RIV/44555601:13520/22:43896614 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1359645421009666?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359645421009666?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.actamat.2021.117588" target="_blank" >10.1016/j.actamat.2021.117588</a>

Result language
angličtina
Original language name
Liquid-to-liquid transition around the glass-transition temperature in a glass-forming metallic liquid
Original language description
Liquid-to-liquid transition (LLT) refers to a first-order phase transition between two liquid states. Here, the relationship between the liquid dynamics and LLT is studied by performing in-situ vitrification, annealing, and heating of Pd42.5Ni42.5P15 metallic-glass-forming liquid via fast scanning calorimetry. Unlike isokinetic LLTs reported in metallic liquids, here isothermal-annealing induced forward and heating-initiated reversible LLT are detected, and the LLT mechanisms of both nucleation-growth and spinodal-decomposition types are revealed by controlling the annealing temperature. A two-step-like increase in the specific heat of the glass transition is observed upon reheating reflecting the coexistence of two distinct liquids. The detected transition conforms to LLT behavior observed in molecular liquids; however, it can also proceed as a glass-to-glass transition below the conventional glass-transition temperature. This work not only provides a complementary understanding of the nature of LLTs in both metallic and molecular liquids but also reveals a unique first-order glass-to-glass transition in the multi-component metallic system.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/LM2018124" target="_blank" >LM2018124: Nanomaterials and Nanotechnologies for Environment Protection and Sustainable Future</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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