Abstract:
The isobaric heat capacity of $\mathrm{LaSrMnFeO_{5,5}}$ ferrite is investigated within the temperature range of $298.15$–$673$ K by a calorimetric method. On the curve of the dependence of the heat capacity on temperature, the $\lambda$-type effect is revealed relating to a phase transition of the second kind. Temperature dependencies of the thermodynamic functions $S^0(T)$, $H^0(T)-H^0(298.15)$, and $\Phi^{xx}(T)$ are calculated. The temperature dependencies of permittivity and electrical resistance are studied within the temperature range of $303$–$493$ K, and the results show that the composition under study has semiconductor properties.
Citation:
B. K. Kasenov, S. Zh. Davrenbekov, Sh. B. Kasenova, Zh. I. Sagintaeva, A. Zh. Abildaeva, B. T. Ermagambet, M. A. Isabaeva, M. O. Turtubaeva, E. Zh. Zhumadilov, “Thermodynamic and electrophysical properties of $\mathrm{LaSrMnFeO_{5,5}}$ ferrite”, TVT, 50:6 (2012), 789–792; High Temperature, 50:6 (2012), 736–738
This publication is cited in the following 4 articles:
Kassenov B.K., Kassenova Sh.B., Sagintaeva Zh.I., Kuanyshbekov E.E., Kopylov N.I., “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
A. Zh. Bekturganova, Sh. B. Kasenova, Zh. I. Sagintaeva, B. K. Kasenov, K. T. Rustembekov, M. D. Stoev, “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”, High Temperature, 55:3 (2017), 459–462
A. G. Vikulov, D. G. Vikulov, S. Yu. Mesnyankin, A. Yu. Fel'dman, “Experimental study of electrone conductivity of aluminum materials contact in the presence of surface nanofilms”, High Temperature, 53:1 (2015), 36–44
B. K. Kasenov, Zh. I. Sagintaeva, Sh. B. Kasenova, E. E. Kuanyshbekov, A. A. Seisenova, “Calorimentric investigation of heat capacity of the $\mathrm{ErMFe}_2\mathrm{O}_{5.5}\,(\text{M} = \mathrm{Mg}$, $\mathrm{Ca}$, $\mathrm{Sr}$, $\mathrm{Ba})$ ferrites in the temperature range of $298.15$–$673$ K and calculation of their thermodynamic functions”, High Temperature, 53:3 (2015), 358–362