Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Andrey V. Kartashev"'
Autor:
Andrey V. Kartashev
Publikováno v:
Гуманитарные и юридические исследования. 9:206-213
Autor:
Igor N. Flerov, E. I. Pogorel’tsev, Andrey V. Kartashev, N. M. Laptash, M. S. Molokeev, E. V. Bogdanov, M. V. Gorev, Svetlana V. Melnikova
Publikováno v:
Physics of the Solid State. 62:1271-1279
The (NH4)3VOF5 crystals have been synthesized and their homogeneity and single-phase structure has been established by the X-ray diffraction, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy studies. The investigations of the temp
Heat capacity, thermal expansion and barocaloric effect in fluoride $$\hbox {K}_{2}\hbox {TaF}_{7}$$
Publikováno v:
Journal of Materials Science. 54:14287-14295
The heat capacity and thermal expansion of potassium heptafluorotantalate were studied. The room temperature phase $$P2_1/c$$ is stable at least to 4 K. The strong first-order phase transition $$P2_1/c - Pnma$$ at $$T_0=486.2\,\hbox {K}$$ is accompan
Autor:
Evgeniy V. Bogdanov, Andrey V. Kartashev, Natalia M. Laptash, Igor N. Flerov, E. I. Pogorel’tsev, Mikhail V. Gorev
Publikováno v:
Journal of Solid State Chemistry. 276:152-158
Heat capacity, thermal dilatation, permittivity and sensitivity to external pressure of ( NH 4 ) 3 SiF 7 were studied. Due to the absence of cubic phases P m 3 ¯ m and P a 3 ¯ , a strong decrease in the total entropy change ∑ Δ S i = 19 J/mol K
Publikováno v:
Physics of the Solid State. 61:62-68
Crystalline samples of the (La1 – yEuy)0.7Pb0.3MnO3 (y = 0, 0.2, 0.4, 0.5, 0.6, and 0.8) manganite solid solutions have been grown. Temperature dependences of the specific heat, thermal expansion, and high-intensity magnetocaloric effect have been
Publikováno v:
Journal of Magnetism and Magnetic Materials. 545:168747
Using the flux technique single crystals of (Ni,Cu)2MnBO5 were grown. The crystal structure of this compound belongs to the space group Pbam(55). There are no monoclinic distortions of the crystal structure. The analysis of the structural data shows
Autor:
Andrey V. Kartashev, E. A. Mikhaleva, Maxim S. Molokeev, L. N. Korotkov, Ewa Rysiakiewicz-Pasek, Mikhail V. Gorev, Igor N. Flerov
Publikováno v:
Physics of the Solid State. 60:1338-1343
The effect of restricted geometry on specific heat capacity and thermal expansion of the triglycine sulfate (TGS)–borosilicate glass composites have been studied first. A decrease in the entropy and temperature of the P21 ↔ P21/m phase transition
Autor:
Igor N. Flerov, Mikhail V. Gorev, Andrey V. Kartashev, Evgeniy V. Bogdanov, Ewa Rysiakiewicz-Pasek, L. N. Korotkov, Vitaliy S. Bondarev, E. A. Mikhaleva, Maxim S. Molokeev
Publikováno v:
Journal of Materials Science. 53:12132-12144
A study of heat capacity, thermal dilatation, susceptibility to hydrostatic pressure, permittivity and polarization loops was carried out on NH4HSO4–porous glass nanocomposites (AHS + PG) as well as empty glass matrices. The formation of dendrite c
Autor:
Evgeniy V. Bogdanov, E. I. Pogorel’tsev, Igor N. Flerov, Andrey V. Kartashev, Natalia M. Laptash, Mikhail V. Gorev
Publikováno v:
Journal of Solid State Chemistry. 256:162-167
Heat capacity, thermal dilatation, susceptibility to hydrostatic pressure and dielectric properties associated with succession of three phase transitions below room temperature in double fluoride salt (NH 4 ) 3 GeF 7 were studied. A possible transfor
Autor:
Mikhail V. Gorev, Ewa Rysiakiewicz-Pasek, L. N. Korotkov, Andrey V. Kartashev, V. S. Bondarev, E. V. Bogdanov, Igor N. Flerov, E. A. Mikhaleva
Publikováno v:
Ferroelectrics. 513:44-50
Heat capacity, thermal dilatation, sensitivity to pressure and permittivity of NH4HSO4 embedded into glass matrices with a pore size of 320 nm and 46 nm were studied. Large difference in the thermal expansion of both glass and ferroelectric leads to