Abstract
The innovative sphere of kinetic phase diagrams as a special domain of routine thermodynamic determined diagrams is re-evaluated while accentuating its specificity and practical impact when studying system under rapid changes of temperature (e.g., cooling). Requirement for a certain driving force in order to accomplish transformations is explored. It involves merger of heating–cooling as a nonequilibrium thermodynamic state of a certain sample ‘autonomy.’ The meaning of temperature is discussed when measured during inconstant thermal experiments. Thermodynamic legitimacy when assuming the effect of programmed temperature changes at the constant heating rate is examined and approved. Query about the implication of the term ‘temperature’ under rapid quenching results in a proposal of new tem ‘tempericity.’ Size as another degree of thermodynamic freedom is observed and investigated for the issue of nanomaterials providing the apparent analogy between the temperature-dependent kinetic phase diagrams and those obtained for diminishing particle size. Specific behavior of nanocomposites is explored regarding the particle curvature, temperatures of transformation, dissolution or phase separation, etc. Extension of kinetic phase diagram to the nanostate determinability, involving thermodynamics expanded by ‘one dimension’ as a result of severely contracted particle surface, is dealt with. The chapter contains 92 references.
Published Version
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