Search Results - "solid solutions"

Electrophysical properties of solid solutions and composite structures of system SnO2 - TiO2 were studied. Values of specific volume resistivity, factors of temperature sensitivity and temperature factors of resistance of solid solutions and compositions formed as a result of their disintegration we...

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Regularities of changes in the electrical conductivity of solid NiO – ZnO solutions in the temperature range of 20– 700°C were studied. It was found that all the compositions of solid solutions have a negative temperature coefficient of resistance. The change in electrical resistance is 3-4 orders o...

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The single crystals of ternary compounds MnIn2S4, AgIn5S8 and solid solutions on their basis have been obtained for the first time employing Bridgeman method. The single crystals' compositions and structure were determined. It is seen that the pointed compounds MnIn2S4, AgIn5S8 and their solid...

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This article discusses methods for describing and modeling the properties of new nanostructured materials that contain systems and structures with sizes from tens to thousands of angstroms (or 1-100 nm). For such systems, the characteristic quantum interference effects: giant enhancement of the diel...

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Pure and superstoichiometric modified by 2[Formula: see text]wt.% Bi2O3 and 2[Formula: see text]wt.% manganese oxide (Mn2O3) ceramic samples of the binary system 0.71BiFeO3-0.29BaTiO3 were fabricated using conventional ceramic technology by double solid-phase synthesis with following sintering. Mech...

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It is shown that the open pores of the crystal lattices of iron, manganese, titanium, cobalt cannot contain hydrogen, oxygen, nitrogen and carbon atoms. In solid solutions of alloys, hydrogen and oxygen atoms are present in the adsorbed state. Nitrogen atoms are mainly included in metal nitrides. Ca...

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The frequency dependences of attenuation and reflection coefficient for solid solutions of the (FeIn2S4)х ×(AgIn5S8)1-х system upon interaction with microwave radiation are obtained. It is established that crystal powders of the mentioned compounds provide attenuation of the electromagnetic radiatio...

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Ceramic samples of the (1-2x)BiScO3-xPbTiO3-xPbMg1/3Nb2/3O3 system in the whole compositions region x = 0-0.50 were synthesized. According to the X-ray diffraction studies (XRD), the region of solid solutions with perovskite structure formation in the system was determined (x = 0.23-0.50). The prese...

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The frequency dependences of attenuation and reflection coefficient for solid solutions of the (FeIn2S4)1-х ×(CuIn5S8)х system upon interaction with microwave radiation are obtained. It is established that the addition of carbon black to the powder composition based on the CuIn5S8 and FeIn2S4 crysta...

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Single crystals of solid solutions (MnIn2S4)1-х–(AgIn5S8)х have been grown with the Bridgeman method in the whole range of temperatures. The crystals structure and composition were determined. The study of the given single crystals in the temperature range 2–300 К and magnetic fields to 10 T was car...

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The growth process and properties of CdZnTe single crystals of solid solutions was considered. A mathematical model of the process was built taking into account radiative heat transfer. An analytic form for calculating the view factor in different geometric configurations with axial symmetry was obt...

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Computation method of the radiative heattransfer and free convection in the growth ampoule was suggested. It is based on numeric computation of two phase problem with unknown shape of interface. Computation was realized in two steps: on the first step heat transfer problem was solved, in which cryst...

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The development of effective, cost-efficient, and printable solid-state gas sensors for the detection of volatile organic compounds is of great interest due to their wide range of applications, spanning from real-time indoor monitoring to emerging fields such as non-invasive medical diagnostics. How...

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A method for the computation of radiative heat transfer was suggested. It is based on numeric computation of heat flows from the muffle walls with a specified temperature to the ampoule walls with a temperature that needs to be estimated. The computation was realized in two steps. At the first step...

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Solid solutions (SS) with a quasi-binary cross-section of a four-component system of the composition [Formula: see text](Na[Formula: see text]K[Formula: see text])NbO3–xPb(Ti[Formula: see text]Zr[Formula: see text])O3, based on compositions with fundamentally different physical responses (Na, K)NbO3...

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The single crystals of FeIn2S4, AgIn5S8 compounds and (FeIn2S4)1- x AgIn5S8 solid solutions have been grown with Bridgeman method. Their composition and structure were determined. It is seen that the pointed compounds and solid solutions are crystallized in the spinal cubic structure. The elementary...

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Method of magnetron sputtering targets polycrystalline SiC-AlN on substrates SiC and Al2O3 thin films received solid solutions (SiC)1-x(AlN)x. The methods of Xray and electron microscopy studies the structure and composition of films. There are factors that determine the composition and structure of...

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Objectives. Chalcogenides of transition elements with low oxidation states, as well as their substituted derivatives, remain a poorly studied class of chemical compounds. Rhenium disulfide has many distinctive features and great application potential as a new twodimensional semiconductor. This is du...

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Abstract The loading states and crystal structure control of solid solution catalysts, which greatly influence the catalytic performance, have not yet been achieved simultaneously due to the limitations of previous synthetic methodologies. In this work, a one‐pot in situ polyol method is developed f...

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The method of solid solution calculation in the system Ln3[М2]M3O12 - Ln3[ScyМ2-y]M3O12 (Ln = La-Lu, Y; М = Ga, Al) has been developed. The theoretical model has been confirmed by experimental data.