Аннотация
The calorimetric method is used to investigate the heat capacity of DyMeIICr2O5.5(MeII-Mg, Ca) chromites in the range from 298.15 to 673 K. The C 0 ∼ f(T) curves exhibit λ-like effects at 348 and 548 K for DyMgCr2O5.5 and at 473 K for DyCaCr2O5.5, which apparently relate to second-order phase transitions. The temperature dependences are calculated for thermodynamic functions C 0 (T), H 0(T)-H 0(298.15), S 0(T), and Φ**(T).