Abstract
Results are presented from ultrasound studies of the melting and crystallization of eutectic In–Ga alloys with indium contents of 6, 9, and 15 at % in porous glasses with a pore size of 7 nm. The effect the confined geometry and composition of the alloy have on the formation of different crystalline phases of gallium and the ranges of melting temperatures is revealed. New high-temperature phases of gallium are found in an alloy with an indium content of 9 at %.
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ACKNOWLEDGMENTS
MPG characteristics were measured via the sorption and desorption of nitrogen on equipment at St. Petersburg State University’s Center for the Diagnostics of Functional Materials for Medicine, Pharmacology, and Nanoelectronics. The liquid nitrogen used in acoustic measurements was provided by the Cryogenic Department of St. Petersburg State University’s Research Park.
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Pirozerski, A.L., Charnaya, E.V. & Nedbai, A.I. Acoustic Studies of the Phase Transitions of Melting and Crystallization in Indium Gallium Alloys Embedded in the Pores of Mesoporous Silica Matrices. Bull. Russ. Acad. Sci. Phys. 84, 657–661 (2020). https://doi.org/10.3103/S1062873820060180
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DOI: https://doi.org/10.3103/S1062873820060180