"RIV/60461373:22340/09:00022005!RIV10-MSM-22340___" . . . . . "3"^^ . . . "\u0160ipula, Ivan" . . "Journal of Alloys and Compounds" . "22340" . "316923" . "Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15" . "[979941C6610D]" . . "Heat capacity and enthalpy increments of strontium niobates Sr2Nb10O27 (S2N5) and Sr5Nb4O15 (S5N2) were measured by the relaxation time method (2-275 K), DSC (253-353 K) and drop calorimetry (673-1371 K). Temperature dependencies of the molar heat capacity in the form Cpm = 835 + 0.23 T - 14x106/T2 J K-1 mol-1 for S2N5 and Cpm =511+0.14T - 6.6x106/T2 J K-1 mol-1 for S5N2 were derived by the least-squares method. The molar entropies at 298.15 K, S^o_m (S2N5, 298.15 K) = 759.7 JK-1 mol-1 and S^o_m (S5N2, 298.15 K) = 524.5 JK-1 mol-1,were evaluated from the lowtemperature heat capacity measurements." . . . . . . "Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15"@en . "0925-8388" . . "Oxides; Strontium niobates; Calorimetry; Heat capacity; Enthalpy increments; Entropy"@en . "Svoboda, Pavel" . "CH - \u0160v\u00FDcarsk\u00E1 konfederace" . "1-2" . . "Heat capacity and enthalpy increments of strontium niobates Sr2Nb10O27 (S2N5) and Sr5Nb4O15 (S5N2) were measured by the relaxation time method (2-275 K), DSC (253-353 K) and drop calorimetry (673-1371 K). Temperature dependencies of the molar heat capacity in the form Cpm = 835 + 0.23 T - 14x106/T2 J K-1 mol-1 for S2N5 and Cpm =511+0.14T - 6.6x106/T2 J K-1 mol-1 for S5N2 were derived by the least-squares method. The molar entropies at 298.15 K, S^o_m (S2N5, 298.15 K) = 759.7 JK-1 mol-1 and S^o_m (S5N2, 298.15 K) = 524.5 JK-1 mol-1,were evaluated from the lowtemperature heat capacity measurements."@en . . . "Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15" . . "P(GA104/07/1209), Z(MSM0021620834), Z(MSM6046137302), Z(MSM6046137307)" . . "Sedmidubsk\u00FD, David" . . "000267798700019" . "Leitner, Jind\u0159ich" . "45" . . "R\u016F\u017Ei\u010Dka, Kv\u011Btoslav" . "Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15"@en . . "RIV/60461373:22340/09:00022005" . . "5"^^ . "5"^^ . .