Ultrasonic study of solid-phase amorphization and polyamorphism in an H2O-D2O (1: 1) solid solution |
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| Authors: | E L Gromnitskaya A G Lyapin O V Stalgorova I V Danilov V V Brazhkin |
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| Institution: | 1. Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow region, 142190, Russia
2. Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow region, 141700, Russia
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| Abstract: | The elastic moduli and volume of H2O-D2O (1: 1) isotopically mixed ice (solid solution) have been studied at the solid-phase amorphization of normal 1h ice under compression at a temperature of 77 K and at the transition from high-density amorphous ice to low-density amorphous ice with subsequent successive crystallization to cubic (1c) and hexagonal (1h) ice at isobaric (0.05 GPa) heating. Comparison of the results with the respective data for H2O and D2O ices indicates that the observed concentration (in the isotopic composition) dependences of the elastic moduli and their derivatives for different phases of ice at isotopic hydrogen substitution in the H2O, H2O-D2O (1: 1), and D2O chain can be both monotonic and significantly nonmonotonic. |
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