Correlative optimization of heat capacities of isostructural compoundsстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:A semi-empirical approach to the critical analysis of thermodynamic data is proposed and applied in this work. A critical analysis of heat capacities of the sixteen isostructural AIIIBV compounds was then made based on the correlative optimization method. A set of mutually agreed equations CP =a+b•10-3•T-c•105•T-2was proposed to describe the heat capacities of these phases. Two continuums of relations CP (T) vs. logarithm of the sum of atomic numbers of elements A and B were obtained for the AIIIBV phases, of both sphalerite and wurtzite types, in the temperature range from 260 to 1 500 K. Based on the proposed equations, heat capacity values were predicted for the previously unstudied (or poorly studied) phases TlN and AlP within the temperature ranges of 260-1018 K and 260-1 500 K, respectively. The proposed correlative method of thermodynamic functions can be applied to other different groups of isostructural organic and inorganic compounds.