The supercooled liquid undergoes a `glass transition' in which Cp (l) decreases rapidly and approaches that of C p (s). The theoretical glass transition temperature T g,theoretical is defined as the temperature below the melting point, where S(l-s)=0. Similarly, the overheated solid will ...
Thermal and electric properties of metallic glasses and of crystalline reference samples have been measured starting from room temperature up to the liquid state using a high-speed calorimeter. High heating rates φ = dT÷dt are required to prevent the crystallization of the glasses. Experimental res...
A comprehensive review of solid–liquid phase transition studies based on molecular computer simulations is given. Topics such as reliable characterization of phase transition temperature, heating and freezing rates used in simulations, the significance of the initial configurations in solid water clusters,...
As in the near equilibrium scenario, we predict the liquid-solid transition by comparing Eqns. 2 and 3; in here, both the relations include the contributions of the dynamic heterogeneities. The trans- ition occurs when RSe ~RMe us ~1 D or us ~1: D ð6Þ Note that at D~us the ...
liquid transitions of the polymers. The azobenzene groups in the polymers exhibit reversiblecis–transphotoisomerization abilities.Transazopolymers are solids withTgabove room temperature, whereascisazopolymers are liquids withTgbelow room temperature. Because of the photoinduced solid-to-liquid transitions ...
Transitions between solid and liquid phases were investigated to estimate the melting temperature of the clusters. Although the melting temperatures showed non-monotonic behaviour as a function of cluster size, their general tendency follows the classical relationship Tm n1/3 to the cluster size n. ...
For (in reduced unit based on the LJ parameter σ), the liquid–solid phase equilibria are estimated over the thermodynamic parameter space of temperature (T)–lateral pressure ()–slit width (h), on the basis of the Clausius–Clapeyron equation for the quasi-2D system. This is the first ...
Differential thermal analysis in hydrostatic apparatus yielded for K2CO3: solid-liquid transition (905 ± 2°C intercept at 1 bar), 20.2 ± 0.6 deg kbar1 slope and solid-solid (421 ± 2°C), 16.8 ± 0.8 deg kbar1, to 5 kbar; Na2CO3: solid-solid (485 ± 3°C), 15.5 ± 0.5 ...
The internal friction of the Pb-Sn alloys was measured during heating process fr om room temperature to high temperature.It is reported that there is a sudden dr op in the internal friction curves of the vibration systems with the presence of solid-liquid transition of the Pb-Sn alloys.The ...
Q.The melting point of the solid state of a substance is40∘C. The freezing point of the liquid state of the same substance will be: Q.Assertion :In change of state from solid to liquid the temperature decreases util the entire amount of the solid substance melts Re...