Zobrazeno 1 - 10
of 183
pro vyhledávání: '"V. M. Gropyanov"'
Autor:
E. N. Khazanov, V. M. Gropyanov, S. N. Ivanov, A. V. Taranov, A. A. Abramovich, I. S. Mikhailova
Publikováno v:
Physics of the Solid State. 43:665-669
Elastic properties and thermal-phonon scattering are investigated in Al2O3+0.3% MgO ceramics and cermets of different porosities based on them. The cermets, reinforced with a metallic frame of the steel 12X18H9T, are obtained by dry compaction follow
Autor:
A. V. Gropyanov, V. M. Gropyanov
Publikováno v:
Refractories and Industrial Ceramics. 42:374-377
The ceramic strength is shown to increase with decrease in porosity and decrease in grain size of polycrystals. In sintering, the material porosity decreases and the grain size increases. A relation between the ceramic strength and the kinetic parame
Autor:
A. V. Gropyanov, V. M. Gropyanov
Publikováno v:
Refractories and Industrial Ceramics. 42:162-165
The potential use of a mathematical simulation method for accumulative recrystallization of magnesite of provenance from the Chita deposit is considered. The densification rate in sintered MgO, that is, the rate at which grain boundaries form at the
Publikováno v:
Journal of Magnetism and Magnetic Materials. 220:147-151
The zero-field-cooled and field-cooled magnetizations, magnetization versus field, and remanent magnetization were measured for a cermet on the base of Al 2 O 3 using a SQUID magnetometer in the temperature range of 2–360 K. It was shown that magne
Publikováno v:
Refractories and Industrial Ceramics. 41:385-389
Results of a study of cermets based on Al2O3 and ZrO2 reinforced by a metallic skeleton of steel 12Kh18N9T are presented. The Young's modulus, the shear modulus, the compression modulus, and the Poisson coefficient are determined by the dynamic metho
Autor:
V. M. Gropyanov, A. V. Gropyanov
Publikováno v:
Refractories and Industrial Ceramics. 41:430-434
A kinetic equation of solid-phase sintering is presented that relates the compaction rate with the growth rate of grains of polycrystals. Progressive allowance for the changes in the structure of porous solid bodies in sintering (statistical features
Publikováno v:
Refractories. 36:280-284
The kinetics of sintering at 2300 – 2400K naturally pure dolomites of the Melekhovo — Fedot'evo and Lis'egorsk Deposits is investigated experimentally at different heating rates. Kinetic parameters of the processes of densification and grain grow
Publikováno v:
Refractories. 36:35-38
Lime specimens obtained by clinker technology from sintered lime clinker with a relative density exceeding 75% of the theoretical value using TiO2 as a sintering addition are investigated. It is established that the heat resistance of lime specimens
Publikováno v:
Refractories. 34:463-468
The data obtained suggest that the rate and degree of hydroxylation in lime clinkers are determined by the rate of chemical adsorption of water vapor on their surfaces. An addition of TiO2 affects the reduction in the rate of hydroxylation to the ext
Autor:
R. M. Vezikova, V. M. Gropyanov
Publikováno v:
Refractories. 34:87-90
A study of mixtures of CaO and TiO2 fired at 1770 K with various heating rates confirmed the presence of three binary compounds in the system CaO-TiO2: CaTiO3, Ca3Ti2O7, and Ca4Ti3O10.