Structure, non-stoichiometry and thermodynamic properties of Bi1.85Sr2Co1.85O7.7-delta ceramics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10271634" target="_blank" >RIV/00216208:11320/14:10271634 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/14:43897387 RIV/60461373:22340/14:43897387
Result on the web
<a href="http://dx.doi.org/10.1016/j.tca.2014.02.022" target="_blank" >http://dx.doi.org/10.1016/j.tca.2014.02.022</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tca.2014.02.022" target="_blank" >10.1016/j.tca.2014.02.022</a>

Result language
angličtina
Original language name
Structure, non-stoichiometry and thermodynamic properties of Bi1.85Sr2Co1.85O7.7-delta ceramics
Original language description
The structure and oxygen non-stoichiometry of misfit layered cobaltite Ei(1.85)Sr(2)Co(1.85)O(7.7-delta) was determined by Rietveld analysis and by thermogravimetric measurements. The heat capacity and enthalpy increments of pseudo-ternary oxide Ei(1.85)Sr(2)Co(1.85)O(7.7-delta) was measured by the relaxation time method (PPMS) from 2 K to 256 K, by differential scanning calorimetry (DSC) from 258 K to 355 K and by the drop calorimetry from 573 K to 1153 K. Above room temperature the temperature dependence of the molar heat capacity in the form C-pm = (305.8 + 0.07325 . T - 4702536 T-2)J K-1 mol(-1) was derived by the least-squares method from the experimental data. The heat capacity was analyzed in terms of a combined Debye-Einstein model. The molar entropy S-m(o)(298.15) = 317.7J mol(-1) K-1 was evaluated from the low temperature heat capacity measurements. (C) 2014 Elsevier B.V. All rights reserved.
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>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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