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Article
Layered Niobium-Cermet Composite Material
Layered composite materials based on niobium and cermet are produced via the self-propagating high-temperature synthesis of preliminarily structured samples using metal foils (Ti, Nb, Ta, Ni) and reaction tape...
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Article
Self-Propagating High-Temperature Synthesis of Layered Composite Ti/Hf/Ta/Ni/Ceramics Materials
This paper describes the compounds of refractory metal foils (Ti, Hf, Ta, and Ni) with ceramic layers formed as a result of combustion of reaction tapes rolled from Ti + 0.65C, Ti + 1.7B, and 5Ti + 3Si powder ...
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Article
Self-Propagating High-Temperature Synthesis of High-Entropy Carbides in the Gasless Thermal Explosion Mode
High-entropy carbides are a new class of inorganic compounds promising for a wide range of applications. A new concept was proposed for the synthesis of powders of high-entropy carbides by self-propagating hig...
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Article
Layered Composite Materials Based on Ti/Ta/Hf/Ceramic for Operation under Extreme Conditions
Ti/Ta/Hf/Ni/ceramic layered composite materials are produced via the self-propagating high-temperature synthesis (SHS) of prestructured samples using metal foils (Ti, Hf, Ta, Ni) and reaction tapes (Ti + 0.65C...
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Article
Evolution of the Structure and Phase Composition of High-Entropy CoCrFeNiCu Alloy during Prolonged Annealing
The thermal stability of a CoCrFeNiCu high-entropy alloy (HEA) is studied in the course of prolonged annealing in a temperature range of 873–1273 К for 204 days. The alloy, which is prepared by mechanochemical...
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Article
Induction Period of a Thermal Explosion in Titanium and Aluminum Powder Mixtures
The processes occurring during the induction of a thermal explosion in titanium and aluminum powder mixtures are analyzed. The role of the oxide film on aluminum particles and the heating rate of samples durin...
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Article
Welding in Ti–Al and Ni–Al Systems by Self-Propagating High-Temperature Synthesis
The possibility of welding between Ti–Al and Ni–Al layers via self-propagating high-temperature synthesis was demonstrated by using the heat released from the exothermic chemical reaction. The applied pressure...
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Article
Thermal Explosion in Ti + Zr + Hf + Nb + Ta + 5С System: Effect of Mechanical Activation
The effect of various conditions of mechanical activation of Ti + Zr + Hf + Nb + Ta + 5C mixtures on the microstructure of composite particles, regularities of their ignition, and phase composition of final pr...
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Article
High-Temperature Interaction between Carbon Fibers and Cu–Ag Eutectic Alloy
High-temperature interaction of 30 wt % Cu–70 wt % Ag eutectic alloy with carbon fibers was studied. It was shown that Cu–Ag drops coated with carbon film are formed on the surface of carbon fibers. Carbon ato...
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Article
Evolution of the Phase Composition of the Cantor CoCrFeNiMn Alloy during Prolonged Annealing
The thermal stability of the Cantor high-entropy CoCrFeNiMn alloy fabricated by mechanical alloying of metal powders in a planetary mill has been studied after a 30-day annealing in the 873–1273 K temperature ...
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Article
Combustion Synthesis and Magnetic Properties of Ni–Al–Mn Based Alloy
The influence of Mn addition on combustion synthesis, morphology, phase composition, and magnetic properties of the Ni–Al–Mn alloys was investigated. Ni–Al–xMn alloys with various Mn concentration (x = 0–1.5) wer...
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Article
Change in the Ignition Parameters of Nanodispersed Iron Powders During Long-Term Storage
In this paper, the ignition of samples pressed from nanodispersed iron powder with nanosized particles, stored after manufacturing for four years, is studied. The ignition temperature of samples pressed from a...
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Article
Interaction of Cu Melt with Graphite Fibers
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Article
Peculiarities of Structure Formation in Ni–C, Al–C, and Ni–Al–C Systems at High-Temperature Heating
We performed high-temperature treatment of the Ni–C, Al–C, and Ni–Al–C powder mixtures (5 wt % C (soot)) up to the melting point of the respective metals and found that the melt particles coagulate with format...
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Article
High-Temperature Interaction of Carbon Fibers with a Nickel Melt
This paper investigates the features of the high-temperature interaction of carbon fibers with a nickel melt under the action of a short electric pulse and the formation of a multilayer graphite coating on the...
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Article
Effect of Compression Pressure on Combustion of Tapes Obtained by Rolling a Ti + 1.7B Powder Mixture
Combustion during self-propagating high-temperature synthesis of Ti + 1.7B reaction tapes obtained by rolling from a powder mixture is experimentally investigated. Dependences between the combustion wave propa...
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Article
Obtaining a High-Entropy Fe–Cr–Co–Ni–Ti Alloy by Mechanical Alloying and Electric Spark Plasma Sintering of a Powder Mixture
A two-phase powder alloy based on substitutional solid solutions with bcc and fcc lattices has been obtained by the high-intensity mechanical treatment (HMT) of a multicomponent powder mixture Fe + Cr + Co + N...
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Article
Combustion of Transition Metal–Boron Mixtures in Argon Gas
Combustion of Me + 2B, (Me1 + Me2 + Me3 + Me4) + 8B, and (Me1 + Me2 + Me3 + Me4 + Me5) + 10B mixtures (Me = Ti, Hf, Nb, Zr, Ta) aiming at the preparation of a high-entropy metal diboride by SHS method was stud...
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Article
Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals
A family of high-entropy alloys (HEA) composed of 3d-transitional metals is attracting great interest due to the mechanical, magnetic, and electrical properties that are valuable in the development of advanced...
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Article
Interaction of Carbon Fiber with a Ti–Al Melt during Self-Propagating High-Temperature Synthesis
We have studied the structuring of combustion products in the Ti–Al system upon interaction with carbon fibers during self-propagating high-temperature synthesis. The combustion products have been characterize...
