Výsledky vyhledávání - "V. A. Dudnikov"

Effect of mechanical activation on the thermoelectric properties of Sr1-Sm TiO3 ceramics

Autor: S. N. Vereshchagin, Yu. S. Orlov, A.A. Borus, Mikhail N. Volochaev, S. V. Novikov, M.V. Sitnikov, Alexander T. Burkov, Leonid A. Solovyov, V. A. Dudnikov

Publikováno v: Ceramics International. 47:28992-28999

The Sr1-xSmxTiO3 (х = 0.025, 0.05, 0.075, 0.1, 0.2) strontium titanate solid solutions were prepared from oxides and carbonates using a conventional ceramic technology based on the mechanochemical activation. The electrical conductivity and Seebeck

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59c8bda5a3072906445dd6359e74c566
https://doi.org/10.1016/j.ceramint.2021.07.060

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The Sr2.4Dy0.6Co2O7-δ Ruddlesden‒Popper Phase: Structural, thermoelectric, and magnetic properties

Autor: S. Yu. Gavrilkin, Leonid A. Solovyov, S. N. Vereshchagin, V. A. Dudnikov, Yu. S. Orlov

Publikováno v: Ceramics International. 47:9068-9074

―A new anion-deficient Sr2.4Dy0.6Co2O7‒δ (δ = 0.33–1.1) perovskite phase with a structure of the A3B2O7 Raddlesden‒Popper homologous series has been obtained by the solid-state synthesis in the reducing/oxidizing atmosphere and its structur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a6a43e8e67b20010f3bee27898da2e26
https://doi.org/10.1016/j.ceramint.2020.12.030

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Order–disorder transition in the Dy0.2Sr0.8CoO3-δ rare-earth cobalt oxide solid solutions: Structural and thermoelectric properties

Autor: Mikhail N. Volochaev, A. Yu. Tsvetkov, S. N. Vereshchagin, S. Yu. Gavrilkin, V. A. Dudnikov, Yu. S. Orlov

Publikováno v: Journal of the European Ceramic Society. 40:5559-5565

By the example of the Dy0.2Sr0.8CoO3-δ compound undergoing an order–disorder phase transition with increasing temperature, we demonstrate a significant dependence of the kinetic properties on the morphology of the internal spatially inhomogeneous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57002852ac5b191e2b9ef66713e67b11
https://doi.org/10.1016/j.jeurceramsoc.2020.06.066

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Electronic Structure and Conductivity of a Disordered A1 – xBx Binary Alloy in the Cluster Approach for the Hubbard Model

Autor: Yu. S. Orlov, S. V. Nikolaev, V. A. Dudnikov

Publikováno v: Journal of Experimental and Theoretical Physics. 131:823-837

We propose a method for calculating the electronic band structure of disordered systems with strong electron correlations. Various approaches to the description of electrical conductivity of disordered systems are considered. Calculations are based o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d985a2dc2647fe7a651031c55f7f6d5c
https://doi.org/10.1134/s1063776120100131

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Thermoelectric properties of the SmCoO3 and NdCoO3 cobalt oxides

Autor: Yu. S. Orlov, Mikhail V. Gorev, Alexander S. Fedorov, V. A. Dudnikov, Leonid A. Solovyov, S. N. Vereshchagin, S. V. Novikov, Sergey Ovchinnikov, A. Yu. Tsvetkov, S. Yu. Gavrilkin

Publikováno v: Ceramics International. 46:17987-17991

The thermoelectric properties of the NdCoO3 and SmCoO3 rare-earth cobalt oxides with a perovskite structure have been investigated in a wide temperature range. It is shown that, in the low-temperature region, the thermal conductivity of the compounds

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4c27eacc4345e14d1d64a1c97ec3dd4
https://doi.org/10.1016/j.ceramint.2020.04.113

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Effect of Crystal Field on the Electronic Structure of the Two-Band Hubbard Model with Spin Crossover

Autor: S. V. Nikolaev, Yu. S. Orlov, V. A. Dudnikov

Publikováno v: Journal of Experimental and Theoretical Physics. 130:699-710

We consider the change in the electronic structure of the two-band Hubbard model in the regime of strong electron correlations with spin crossover upon the passage through the crossover point depending on the crystal field growth. An abrupt semimetal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d066f4179f5d4502a7965c487ee6fcee
https://doi.org/10.1134/s106377612004007x

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Organizational-technical measures for cryogels application to increase the soil bearing capacity in the construction and operation of the pipeline transport facilities

Autor: V. Yu. Dudnikov, Lyubov K. Altunina, Vladimir P. Burkov, Galina G. Osadchaya, P V Burkov

Publikováno v: Pipeline Science and Technology. 3:126-132

The paper outlines the ways to increase the operational reliability of trunk pipelines in the permafrost zone by increasing the soil bearing capacity through the use of technology and technical means to control their physical and chemical properties.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::078ee6317568982ec6a1720ebbcf53ec
https://doi.org/10.28999/2514-541x-2019-3-2-126-132

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