TY - JOUR

T1 - Structure Transformations and Supercooling in Nanostructured Gallium Alloys

AU - Васильев, Аллишер Аллиерович

AU - Подорожкин, Дмитрий Юрьевич

AU - Нефедов, Денис Юрьевич

AU - Чарная, Елена Владимировна

AU - Микушев, Владимир Михайлович

AU - Кумзеров, Юрий Александрович

AU - Фокин, А.

N1 - Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.

PY - 2022/12

Y1 - 2022/12

N2 - The effect of size reduction on the phase diagrams of metallic alloys is of great importance for modern applications. Gallium-based alloys are considered as prospective nanomaterials for soft robotics and wearable electronics. Here, we present NMR studies of the Ga–In–Sn eutectic alloy confined to a porous glass with pore size 18 nm, which demonstrated the liquid–liquid phase transition in the supercooled state of the alloy. The phase transition was detected upon cooling by emergence of a second component of the 71Ga NMR line with higher Knight shift. This additional component survived at lower temperatures and was observed upon successive warming. 115In NMR measurements were also conducted to monitor the alloy composition at freezing and melting. The critical point was evidenced. The splitting of the 71Ga NMR line was not found in a binary Ga–Sn alloy embedded into porous glass and opal templates, which suggests that liquid–liquid phase transition is sensitive to the alloy composition.

AB - The effect of size reduction on the phase diagrams of metallic alloys is of great importance for modern applications. Gallium-based alloys are considered as prospective nanomaterials for soft robotics and wearable electronics. Here, we present NMR studies of the Ga–In–Sn eutectic alloy confined to a porous glass with pore size 18 nm, which demonstrated the liquid–liquid phase transition in the supercooled state of the alloy. The phase transition was detected upon cooling by emergence of a second component of the 71Ga NMR line with higher Knight shift. This additional component survived at lower temperatures and was observed upon successive warming. 115In NMR measurements were also conducted to monitor the alloy composition at freezing and melting. The critical point was evidenced. The splitting of the 71Ga NMR line was not found in a binary Ga–Sn alloy embedded into porous glass and opal templates, which suggests that liquid–liquid phase transition is sensitive to the alloy composition.

KW - радиоспектроскопия

KW - наноструктуры

KW - фазовые переходы

UR - http://www.scopus.com/inward/record.url?scp=85136668107&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/0acc6c49-6b22-3ed6-9384-b2912eb4d015/

U2 - 10.1007/s00723-022-01490-y

DO - 10.1007/s00723-022-01490-y

M3 - Article

VL - 53

SP - 1649

EP - 1659

JO - Applied Magnetic Resonance

JF - Applied Magnetic Resonance

SN - 0937-9347

IS - 12

ER -