Abstract
An acoustic study is reported of the crystallization and melting of gallium embedded in an opal-like matrix. The variations of the velocity and absorption of longitudinal ultrasonic waves during phase transitions in the α and β modifications have been found to be hysteretic in nature. It is shown that acoustic methods do not detect gallium melting and crystallization in the tetragonal phase forming in a restricted geometry. Experimental evidence for heterogeneous crystallization of gallium in pores has been obtained.
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Translated from Fizika Tverdogo Tela, Vol. 42, No. 1, 2000, pp. 184–187.
Original Russian Text Copyright © 2000 by Dereppe, Borisov, Charnaya, Shelyapin, Nassar, Kumzerov.
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Dereppe, J.M., Borisov, B.F., Charnaya, E.V. et al. Acoustic study of the melting and solidification of gallium incorporated in an opal matrix. Phys. Solid State 42, 193–196 (2000). https://doi.org/10.1134/1.1131192
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DOI: https://doi.org/10.1134/1.1131192