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Article
Bismuth Niobates Bi3Nb1 – xErxO7 – δ: Structure and Transport Properties
The results of structural and electrophysical characterization of substituted bismuth niobates Bi3Nb1 – xErxO7 – δ , promising oxygen-ion conductors, are presented. The homogeneity extents were determined and cry...
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Article
Synthesis, Structure, and Properties of La0.9Sr0.05Bi0.05Mn1 – yNiyO3 and Composites on Its Basis
The solid solution La0.9Sr0.05Bi0.05Mn1 – yNiyO3 (y = 0.0–1.0) was obtained for the first time using the solid-phase method and studied. It has been found that the solid solution (y = 0.1–0.3) with a rhombo-hedra...
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Article
BIFEVOX Composites: Manufacture and Characterization
Design of composites is a way to improve the quality of solid electrolytes. By mechanically mixing and annealing substituted bismuth vanadate with nanosized aluminum, bismuth, and zirconium binary oxides, we o...
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Article
The Mechanism of Interblock-Boundary Formation and the Effect of Disorientation-Vector Sign Variation along Torn Interblock Boundaries in Nanothin Spatial Dissipative Structures
By analyzing the patterns of flexural extinction contours present on the electron-microscopic images of nanothin (~80 nm) spatial dissipative structures (SDSs) of hexagonal selenium, i.e., nanothin crystals wi...
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Article
Lattice Symmetry of Nanothin Crystals, Direct and Reciprocal Space Isomorphism, and the Curie Symmetry Principle
The symmetry of direct and reciprocal lattices and the symmetry of bend contours present in the electron microscopy images of nanothin crystals with elastic rotational distortion of the lattice are examined us...
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Article
Specifics of the Electrical Properties of Composite Solid Oxide Membranes Based on SrTi0.5Fe0.5O3–δ
The electrical properties of dual-phase fluorite-pervoskite oxide systems based on strontium titanate- ferrite (SrTi0.5Fe0.5O3–δ) are studied. We find that the oxygen ionic and ambipolar conductivities of stronti...
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Article
Change in the Lattice Configuration of Nanothin Space-Dissipative Structures Formed in an Amorphous Film
Nanothin space-dissipative structures (SDSs) of hexagonal selenium formed in an amorphous film are investigated by transmission electron microscopy. It is established that the nanothin SDS of hexagonal seleniu...
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Article
Formation of Dissipative Structures in an Amorphous Film
The formation of nanothin spatial dissipative structures (SDSs) of hexagonal selenium with elastic rotational curvature of the lattice about [001] in an amorphous film was considered. It was established that n...
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Article
New complex-oxide materials Bi25.6Ba0.4Mo10–2yMe″2yO69–d: Synthesis and characteristics
An integrated study was carried out of complex-oxide materials based substituted bismuth molybdate Bi26Mo10O69, which exhibit such potentially valuable characteristics as oxygen-ion conductivity at medium tempera...
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Article
Mn-doped Bi26Mo10O69-d: synthesis and characterization
In this work, we research two series of Mn-substituted bismuth molybdates: Bi26-2xMn2xMo10O69-d and Bi26Mo10-2yMn2yO69-d. The synthesis of powder samples is performed by the conventional solid state technology. S...
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Article
The effect of the synthesis method on the morphological and luminescence characteristics of α-Zn2V2O7
A promising yellow phosphor, α-Zn2V2O7, was synthesized at temperatures below the phase transition temperature (610 ± 5°C) by three different methods: solid-phase and microwave processes and thermolysis of a wate...
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Article
The modification of BaCe0.5Zr0.3Y0.2O3–δ with copper oxide: Effect on the structural and transport properties
The effect of the content of CuO additive on the sinterability, phase composition, microstructure, and electrical properties of BaCe0.5Zr0.3Y0.2O3–δ proton-conducting material is studied. Ceramic samples were pro...
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Article
Phase equilibria in the Nb2O5–CdO system and the thermal stability of Cd2Nb2O7 and CdNb2O6
Phase equilibria were studied in the Nb2O5–CdO system in the Nb2O5-rich region including CdNb2O6 and Cd2Nb2O7. It was determined that CdNb2O6 and Cd2Nb2O7 in air are stable to 1150 and 1120°C, respectively, and t...
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Article
Bi13-xMexMo5O34±δ (Me = Mg, Ca, Sr, Ba) solid solutions: synthesis and properties
A series of complex oxides Bi13-xMexMo5O34±δ, Me = Mg, Ca, Sr, Ba were synthesized and studied. The solid solutions ranges and polymorphic modifications limits were determined. High temperature X-ray powder diffr...
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Article
Synthesis and magnetic properties of a new complex oxide Mn3FeTiSbO9 with an ilmenite structure
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Article
Combined method for obtaining ultradispersed powders of vanadium oxides and carbide
New opportunity to synthesize nano- and ultradispersed powdered materials by combining of two procedures, classical liquid-phase precipitation and low-temperature microwave calcination, at a rather simple inst...
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Article
Modification of a structure of cermet coatings Co-Ni-Cr-B-Si-TiB2, (TiCr)B2 in their fusion
Peculiarities of variation in hardness and structure of the matrix alloy, Stellite, depending on a composition of the ceramic-metal system were found out in studying the effects of hardening of the base layer ...
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Article
Deposition of zinc hydroxide films using weak organic bases
Chemical deposition of zinc hydroxide (obtained by deposition with N,N′-dimethylformamide from alkaline solutions) on glass substrates is studied. The morphology and structure of the films are investigated. The f...
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Article
Nanostructured composite materials of cerium oxide and barium cerate
Nanosized powders with a composition of (1-x)Ce0.8Sm0.2O2-δ-xBace0.8Sm0.2O3-δ (x = 0, 0.3, and 1) were obtained by self-ignition combustion synthesis (SICS) from the appropriate nitrates and various organic fuels...
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Article
Effect of the synthesis technique on the physicochemical properties of Ce0.8(Sm0.75Sr0.2Ba0.05)0.2O2 − δ
A multicomponent solid electrolyte of composition Ce0.8(Sm0.75Sr0.2Ba0.05)0.2O2 − δ has been synthesized by three different techniques: solid-state reaction, laser evaporation, and the glycine nitrate process. It...
