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Impregnation of Tungsten-Carbide Substrates with Low-Carbon Steel
The interaction of tungsten carbide and low-carbon steel in contact and contact-free is investigated in systems with contact and contact-free...
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Titanium Monocarbide
Similarly to other transition metals of group 4 – hafnium and zirconium, titanium forms with carbon, practically, the only one chemical compound (see...
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Tungsten Carbides
Tungsten forms with carbon several chemical compounds (see also section C – W in Table I-2.13): tungsten monocarbide δ-WC1±x phase (hexagonal...
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Physicochemical characteristics, production and application of boron-bearing complex ferroalloys
The expediency of producing and using complex ferroalloys in steelmaking is analyzed in terms the manufacturing technology, the raw materials...
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On the absence of long-period 9R phase in the Fe–32% Ni invar alloy
An analysis of electron diffraction patterns available in [19, 20] has shown that, contrary to the author’s conclusion, no signs indicating the...
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Simulation of phase diagrams of oxychromites with a spinel structure
Phase diagrams of oxychromites with a spinel structure are described in the context of the Landau phenomenological theory of phase transitions. As an...
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On similarity of structure of icosahedral viral capsids and shells of metallic nanoclusters
TOPOS software has been applied for searching for topological types of viral capsids—virus shells generated by self-assembly of proteins into...
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Corrosion resistance of titanium-chromium diboride and composite material based on it
The resistance to electrochemical corrosion and high-temperature oxidation of titanium-chromium diboride and materials with a metal binder based upon...
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Magnetic video-pulse action on the nuclear spin echo in multidomain magnetic materials
The dependences of the intensities of two-pulse and single-pulse echoes on the time of the application of the pulses of magnetostatic field (video...
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Phase transitions and structural mechanisms of the formation of LiCoO2 polymorphic modifications
The structural mechanisms of formation of the low-symmetry phases of the LiCoO 2 compound from the praphase with a sodium chloride structure are...
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Polar anisotropy of microhardness for refractory boride single crystals of different syngony
Anisotropy of Knoop microhardness is measured in different directions within the limits 0–90 and 0–180° with a step in the azimuth of 22.5° in...
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Dam** properties of sintered high-porosity materials based on powders and discrete copper fibers
Experimental relationships are established between the vibration decrement and the level of maximum cyclical deformations during the bending of...
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Influence of additives of Al2O3 on properties of aluminum nitride-based ceramic
The properties of AlN-based materials with additives of 5–50 mass% Al 2 O 3 are investigated. It is established that addition of Al 2 O 3 to AlN increases...
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Technological aspects of heat treatment of hard alloys in the sintered state
Conditions and temperature and time parameters of quenching of hard alloy specimens and articles from tungsten group alloys have been studied. It is...
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Reaction of boron-containing materials with titanium during self-propagating high-temperature synthesis
We have studied the contact reaction of titanium, chromium, and tungsten borides with titanium. We have established that the materials react...
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The thermal capacity and enthalpy of gadolinium sesquiselenide over a wide temperature range
Measurements have been made on the thermal capacity of γ-Gd 2 Se 3 at 58.88–298.34 K. Values have been obtained for the thermal capacity, entropy,...
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Adsorption-chemical activity of finely-dispersed amorphous powders of brown and black boron used in synthesizing metal borides
Kinetic features of adsorption-desorption processes for a nitrogen and oxygen mixture of gases, nitrogen and water vapor at the surface of...
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Oxidation of porous nanocrystalline titanium nitride. II. Scale structure and composition
We have used x-ray phase analysis to study the composition of the products of reaction between oxygen and nanocrystalline powders with particle sizes...
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Thermodynamic properties of scandium-copper compounds
We have determined the Gibbs energy, the enthalpy, and the entropy of formation for the compounds ScCu 4 , ScCu 2 , and ScCu by measuring the emf of...
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Phase equilibria in the system HfO2-Y2O3-La2O3 AT 1900°C
We have used x-ray phase analysis, electron-probe microanalysis, petrography, and electron microscopy on annealed specimens to study phase equilibria...