Anomalously Low Elastic Stability of NaCl-H2O Ice at Low Temperaturesстатья
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Дата последнего поиска статьи во внешних источниках: 20 марта 2018 г.
Аннотация:Water <em>NaCl </em>solid solutions with the salt weight fraction p = 0.0001-0.1 subjected to high uniaxial compression exhibit elastic instability (similar to the Bridgman explosive effect) in the temperature range 100.260 K. At temperatures from 225 to 260 K, stability threshold P<sub>c</sub> (or a critical pressure at which the explosive instability occurs) of these solutions is equal to, or higher than, P<sub>c</sub> for pure water ice. However, in the temperature interval 100-225 K, thresholds P<sub>c</sub> for the NaCl water solid solutions with p > 0.001 are anomalously low. The largest drop of P<sub>c</sub> (by 15 to 30 times relative to Pc for pure water ice) is observed for low 0.001 < p < 0.01. The possible structure of the solid ice solutions in all the temperature ranges mentioned above is analyzed in terms of the percolation theory as applied to elastic networks.