Abstract:
By means of the calorimetric method, we investigate the LaM2NiMnO5(M—Li,Na,K) nickelite-manganite heat capacities within the range of 298.15–673 K. For the studied compounds, within the above temperature range, we reveal the λ-like effects respective to the second kind phase transition at 323 K and 498 K for compounds containing Li, 323 K and 523 K for compounds containing Na, and 448 K for those containing K. Taking into consideration the phase transition temperatures, we derive the equations of the temperature dependence of the compound heat capacity. On the basis of the experimental values of the heat capacities as well as of the calculation data on the nickelite-manganite standard entropy, we calculate the temperature dependences of the heat capacity, the entropy, the enthalpy, and the reduced thermodynamic potential.
Citation:
A. Zh. Bekturganova, Sh. B. Kasenova, Zh. I. Sagintaeva, B. K. Kasenov, K. T. Rustembekov, M. D. Stoev, “Calorimetric studies of LaM2NiMnO5(M—Li,Na,K) nickelite-manganite heat capacity within the temperature range of 298.15–673 K”, TVT, 55:3 (2017), 480–483; High Temperature, 55:3 (2017), 459–462
\Bibitem{BekKasSag17}
\by A.~Zh.~Bekturganova, Sh.~B.~Kasenova, Zh.~I.~Sagintaeva, B.~K.~Kasenov, K.~T.~Rustembekov, M.~D.~Stoev
\paper Calorimetric studies of $\rm{LaM}_2\rm{NiMnO}_5\,(\rm{M}$---$\rm{Li}, \rm{Na}, \rm{K})$ nickelite-manganite heat capacity within the temperature range of $298.15$--$673$ K
\jour TVT
\yr 2017
\vol 55
\issue 3
\pages 480--483
\mathnet{http://mi.mathnet.ru/tvt8480}
\crossref{https://doi.org/10.7868/S0040364417030024}
\elib{https://elibrary.ru/item.asp?id=29381414}
\transl
\jour High Temperature
\yr 2017
\vol 55
\issue 3
\pages 459--462
\crossref{https://doi.org/10.1134/S0018151X17030026}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000404173400021}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85021260227}
Linking options:
https://www.mathnet.ru/eng/tvt8480
https://www.mathnet.ru/eng/tvt/v55/i3/p480
This publication is cited in the following 5 articles:
Sh. B. Kassenova, Zh. I. Sagintayeva, B. K. Kassenov, E. E. Kuanyshbekov, Zh. S. Bekturganov, A. K. Zeinidenov, “Electrophysical characteristics of nanodimensional cobalte-cuprate-manganite lana2cocumno6 and nickelite-cuprate-manganite lana2nicumno6”, Bull. Karaganda Univ. -Phys., 2:98 (2020), 43–49
A. I. Klyndyuk, A. A. Khort, “Thermophysical properties of solid solutions of Bi1−xNdxFe1−xMnxO3 multiferroics (x=0.03,0.09) at high temperatures”, High Temperature, 57:2 (2019), 186–189
L. V. Kamaeva, V. I. Lad'yanov, “Heat capacity of nickel–phosphorus eutectic melts”, High Temperature, 57:2 (2019), 177–181
B. K. Kassenov, Sh. B. Kassenova, Zh. I. Sagintaeva, E. E. Kuanyshbekov, N. I. Kopylov, “Thermal capacity of new nanodimensional cobalt-cuprate-manganite lali2cocumno6 and nickelite-cuprate-manganite lali2nicumno6 in the interval of 298.15-673 K and their thermodynamic properties”, Bull. Univ. Karaganda-Chem., 2019, no. 94, 62–68
I. Zh. Sagintaeva, B. K. Kasenov, Sh. B. Kasenova, M. O. Turtubaeva, E. E. Kuanyshbekov, “Synthesis and x-ray of new nanosized (nanocluster) nickelite-cuprate-manganites of lanthanum and alkaline metals”, News Natl. Acad. Sci. Rep. Kazastan-Ser. Chem. Technol., 2018, no. 3, 44–48
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