Heat capacity, enthalpy and entropy of ternary bismuth tantalum oxides

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10106794" target="_blank" >RIV/00216208:11320/11:10106794 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/11:43880125 RIV/60461373:22310/11:43880125
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0022459610005268" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0022459610005268</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jssc.2010.11.020" target="_blank" >10.1016/j.jssc.2010.11.020</a>

Result language
angličtina
Original language name
Heat capacity, enthalpy and entropy of ternary bismuth tantalum oxides
Original language description
Heat capacity and enthalpy increments of ternary bismuth tantalum oxides Bi(4)Ta(2)O(11), Bi(7)Ta(3)O(18) and Bi(3)TaO(7) were measured by the relaxation time method (2-280 K), DSC (265-353 K) and drop calorimetry (622-1322 K). Temperature dependencies of the molar heat capacity in the form C(pm)=445.8 + 0.005451T-7.489 x 10(6)/T(2) J K(-1) mo1(-1), C(pm)= 699.0+0.05276T-9.956 x 10(6)/T(2) J K(-1) mol(-1) and C(pm) =251.6+0.06705T-3.237 x 10(6)/T(2) J K(-1) mol(-1) for Bi(3)TaO(7), Bi(4)Ta(2)O(11) and for Bi(7)Ta(3)O(18), respectively, were derived by the least-squares method from the experimental data. The molar entropies at 298.15 K,S degrees(m)(298.15 K)= 449.6 +/- 2.3 J K(-1) mol(-1) for Bi(4)Ta(2)O(11), S degrees(m)(298.15 K)= 743.0 +/- 3.8 J K(-1) mol(-1) for Bi(7)Ta(3)O(18) and S degrees(m)(298.15K)= 304.3 +/- 1.6 J K(-1) mol(-1) for Bi(3)TaO(7), were evaluated from the low-temperature heat capacity measurements.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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