Published in Inorganic Materials
Abstract—It has been shown using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, energy dispersive X-ray spectroscopy, and elemental analysis that phase-pure VB2 with an average particle size in the range 20–35 nm can be prepared in the temperature range 595–930°C by reacting vanadium(III) chloride and sodium boro...
Published in Inorganic Materials
Abstract—We have prepared powders and ceramic composite materials in the ZrO2–Al2O3 system containing 10 and 20 wt % Al2O3 and examined the effect of ferric oxide additions on the linear shrinkage, phase composition, porosity, microstructure, and mechanical properties of the ZrO2–Al2O3 ceramic materials. The results demonstrate that the addition of...
Published in Inorganic Materials
Abstract—A process has been developed for the preparation of high-purity granulated zinc for the growth of Zn82Se scintillator crystals intended for investigation of neutrinoless double beta decay, 2β(0ν), of the 82Se isotope in the CUPID-0 experiment. We have determined the chemical and isotopic compositions of high-purity zinc prepared by this pr...
Published in Inorganic Materials
Abstract—Order–disorder structural transformations in xR2O3 ∙ (1 – х)TiO2 (R = Tm, Er; х = 0.5−0.6) solid solutions with a highly imperfect fluorite-derived structure at 1600°C have been studied using monochromatic synchrotron X-ray diffraction and Raman spectroscopy. The results demonstrate that the synthesis process leads to the formation of two ...
Published in Inorganic Materials
Abstract—New Gd- and B-containing compounds, Y3 –xGdxAl2(AlO4)3 – 0.01x(BO4)0.01x with the garnet structure and Y1 –xGdx(AlO3)1 – 0.01x(BO3)0.01x with the perovskite structure, have been synthesized in the range x = 0.2–1.0 via coprecipitation method and characterized by X-ray diffraction and IR spectroscopy. The formation of a continuous series of...
Published in Inorganic Materials
Abstract—The thermodynamic properties of crystalline platinum disulfide have been studied in the range from 5 to 875 K. The isobaric heat capacity of PtS2 has been determined by two methods: by adiabatic calorimetry from 5.32 to 344.96 K and by differential scanning calorimetry in the range 344.6–874.6 K. Using the experimental Cp(T) data, we evalu...
Published in Inorganic Materials
Abstract—A Ti + Ni powder mixture has been subjected to high-energy mechanical processing (HEMP) and then characterized by X-ray diffraction. The results demonstrate that, with increasing milling time, the crystallite size of both titanium and nickel drops to 10 nm. The internal stress rises with increasing HEMP time, reaching a level near the yiel...
Published in Inorganic Materials
Abstract—This paper examines the feasibility of improving the strength of hydroxyapatite prepared by precipitation from solution via partial substitution of fluoride ions for hydroxyl groups and the addition of calcium fluoride. A comparative analysis of the resultant materials is carried out using advanced physicochemical characterization techniqu...
Published in Inorganic Materials
Abstract—The YbInGe2O7 and LuInGe2O7 germanates have been prepared by solid-state reactions using stoichiometric oxide mixtures, which were sequentially fired at temperatures from 1273 to 1473 K in air, and their molar heat capacity has been determined by differential scanning calorimetry in the range 350‒1000 K. The experimental Cp(T) data obtaine...
Published in Inorganic Materials
Abstract—Magnesium aluminate spinel, MgAl2O4, has been prepared by self-propagating high-temperature synthesis (SHS) in the MgO–Al2O3–Mg(NO3)2 ∙ 6H2O–Al–B system. The composition and structure of the synthesis product have been ascertained by X-ray diffraction, infrared spectroscopy, and scanning electron microscopy. Using time-resolved X-ray diffr...
