Features on the graphs of thermal characteristics of metals in the absence and presence of phase transitions
It is shown that the model of a two-phase system for the first time made it possible not only to calculate the temperature dependences of the heat capacities and thermal expansion coefficients of a number of metals in the ranges of the studied temperatures, but also to calculate their values outside these intervals. The relationship between the appearance of features in the form of "peaks" and "pits" on the graphs with the course of phase transitions and processes in phase subsystems has been established. It has been demonstrated that in the region close to absolute zero, compression of crystals of metals of hexagonal and cubic syngonies is possible with an increase in temperature in the direction perpendicular to the axis of the applicate. Keywords: phase transition, thermodynamic model, heat capacity, syngony, linear thermal expansion coefficient.
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