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Statements

Subject Item
n2:RIV%2F60461373%3A22340%2F09%3A00022005%21RIV10-MSM-22340___
rdf:type
skos:Concept n19:Vysledek
dcterms:description
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 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.
dcterms:title
Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15 Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15
skos:prefLabel
Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15 Heat capacity, enthalpy and entropy of strontium niobates Sr2Nb10O27 and Sr5Nb4O15
skos:notation
RIV/60461373:22340/09:00022005!RIV10-MSM-22340___
n4:aktivita
n11:P n11:Z
n4:aktivity
P(GA104/07/1209), Z(MSM0021620834), Z(MSM6046137302), Z(MSM6046137307)
n4:cisloPeriodika
1-2
n4:dodaniDat
n6:2010
n4:domaciTvurceVysledku
n5:5395097 n5:6541690 n5:9424466
n4:druhVysledku
n16:J
n4:duvernostUdaju
n18:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
316923
n4:idVysledku
RIV/60461373:22340/09:00022005
n4:jazykVysledku
n8:eng
n4:klicovaSlova
Oxides; Strontium niobates; Calorimetry; Heat capacity; Enthalpy increments; Entropy
n4:klicoveSlovo
n13:Heat%20capacity n13:Oxides n13:Calorimetry n13:Enthalpy%20increments n13:Entropy n13:Strontium%20niobates
n4:kodStatuVydavatele
CH - Švýcarská konfederace
n4:kontrolniKodProRIV
[979941C6610D]
n4:nazevZdroje
Journal of Alloys and Compounds
n4:obor
n12:BJ
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
5
n4:projekt
n14:GA104%2F07%2F1209
n4:rokUplatneniVysledku
n6:2009
n4:svazekPeriodika
45
n4:tvurceVysledku
Šipula, Ivan Svoboda, Pavel Sedmidubský, David Leitner, Jindřich Růžička, Květoslav
n4:wos
000267798700019
n4:zamer
n7:MSM0021620834 n7:MSM6046137307 n7:MSM6046137302
s:issn
0925-8388
s:numberOfPages
5
n9:organizacniJednotka
22340