%0 Journal Article
%T Specific Heat Capacity of A<sub>2</sub>FeCoO<sub>6-<i>¦Ä</i></sub> (A = Ca or Sr)
%A S¡¯Nya Sanchez
%A Mandy Guinn
%A Uttam S. Phuyal
%A Gurjot S. Dhaliwal
%A Ram Krishna Hona
%J Journal of Materials Science and Chemical Engineering
%P 1-10
%@ 2327-6053
%D 2023
%I Scientific Research Publishing
%R 10.4236/msce.2023.114001
%X A<sub>2</sub>FeCoO<sub>6-<em>¦Ä</em></sub> (A = Ca or Sr) is synthesized by the solid-state synthesis method and their specific heat capacities are evaluated at 40<span style=\"white-space:nowrap;\">&amp;#730;</span>C using a heat flow meter. The effect of the A-cation size on the specific heat capacity of these compounds is observed. The specific heat capacity of Sr<sub>2</sub>FeCoO<sub>6-<em>¦Ä</em></sub> is found to be the highest, and that of Ca<sub>2</sub>FeCoO<sub>6-<em>¦Ä</em></sub> is the lowest while CaSrFeCoO<sub>6-<em>¦Ä</em></sub> shows the intermediate value. The specific heat capacity decreases with the decrease of the average A-site ionic radius, demonstrating the relationship between heat capacity and A-site ionic radius. The relationship between specific heat capacity and molar mass is also confirmed as the <em>¦Ä</em> value decreases or molar mass increases from Ca<sub>2</sub>FeCoO<sub>6-<em>¦Ä</em></sub> to CaSrFeCoO<sub>6-<em>¦Ä</em></sub> to Sr<sub>2</sub>FeCoO<sub>6-<em>¦Ä</em></sub>.
%K Perovskite Oxide
%K Specific Heat Capacity
%K Oxygen Vacancy
%K XRD
%K Vacancy Order
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=124272