Zobrazeno 1 - 10
of 69
pro vyhledávání: '"S. N. Kallaev"'
Publikováno v:
Physics of the Solid State. 64:527-530
Publikováno v:
High Temperature. 60:15-18
Publikováno v:
Physics of the Solid State. 63:877-880
Autor:
S. N. Kallaev, R. M. Emirov, N. M.-R. Alikhanov, F.F. Orudzhev, Dinara Sobola, Shikhgasan Ramazanov, S. A. Sadykov, Sultanakhmed Kh. Gadzhimagomedov, K. G. Abdulvakhidov, Murtazali Kh. Rabadanov
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:13323-13335
The pure-phase BiFeO3 was obtained in one stage by solution combustion synthesis. The influence of the heat treatment process on the phase composition, magnetic, and optical properties was studied. The calcination of the powder led to a decrease in t
Publikováno v:
Physics of the Solid State. 62:1285-1288
Temperature dependences of the thermal diffusivity and thermal conductivity in multiferroic materials BiFeO3, Bi0.90Sm0.10FeO3, and Bi0.90Eu0.10FeO3 were studied. Substitution of rare-earth ions of europium and samarium for bismuth ions in bismuth fe
Autor:
S. N. Kallaev, R. G. Mitarov, L. A. Reznichenko, N. M.-R. Alikhanov, Z. M. Omarov, S. A. Sadykov
Publikováno v:
Physics of the Solid State. 62:1039-1042
The specific heat and the dielectric permittivity of Bi0.8Ho0.2FeO3 multiferroics have been studied in the wide temperature range 300–750 K. The doping with rare-earth element holmium is found to lead to substantial changes in the temperature depen
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 142:519-534
As well-known the rate of heat extraction depends on the thermal conductivity, $$Q = - \, \lambda \left( T \right){\text{grad }}T$$ , and the fluids flow characteristics, while amounts of heat recovery depends on heat capacity of reservoir rocks, $$Q
Publikováno v:
Physics of the Solid State. 62:865-868
The thermal diffusivity and thermal conductivity of multiferroics Bi1 – xHoxFeO3 (x = 0–0.20) have been studied in the high-temperature region of 300–1200 K. It is established that alloying with the rare-earth element (holmium) strongly increas
Autor:
Zh. Kh. Murlieva, R. M. Emirov, D. K. Palchaev, S. N. Kallaev, S. A. Sadykov, M. Kh. Rabadanov, N. M-R. Alikhanov
Publikováno v:
Physics of the Solid State. 61:2069-2074
Structure and dielectric properties of polycrystalline multiferroics of Bi1 – xSmxFeO3 (x = 0–0.2) system are studied. Using X-ray diffraction, two coexisting phases (rhombohedral R3c and orthorhombic Pbam) are found in the nanostructured sample
Autor:
Zumrud Z. Abdulagatova, S. N. Kallaev, A. E. Ramazanova, B. A. Grigor’ev, Kurban M. Rabadanov, Z. M. Omarov, Ilmutdin M. Abdulagatov, A. G. Bakmaev
Publikováno v:
International Journal of Thermophysics. 42
The contact-free, laser-flash (LFA 457) apparatus was used to measure the thermal diffusivity ( $$a$$ ) of oil reservoir rock samples over the temperature range from (303 to 723) K at atmospheric pressure. The measurements of the heat capacity ( $$C_