TiC–Fe Powders by Coupled SHS Reactions: An Overview

Амосов, А. П.; Samboruk, A. R.; Yatsenko, I. V.; Yatsenko, Vitaliy A.

doi:10.3103/s1061386219010023

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…Titanium carbide, titanium boride (II) are characterized by high melting point (up to 3200 K), hardness, and also resistance to wear, erosion, oxidation and corrosion [1].Joining of TiC and Tib2 to metal alloy is significant for its high-temperature applications [2]. Amongst metallurgy methods, combustion synthesis (known as self-propagating high-temperature synthesis (SHS) [2][3][4]) is an efficient technique for production of engineering and functional materials -intermetallic, ceramics and cermet's. SHS is based on chemical reactions that are sufficiently exothermic to transform spontaneously the reactants into products when initiated, the reaction propagating through the reactants' mixture in the form of a combustion wave.…”

Section: Intorductionmentioning

confidence: 99%

Synthesis in SHS-Mixtures by Explosive Loading

Saikov

Malakhov

Salamatov

et al. 2020

KEM

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The article is devoted to the study of the characteristics of shock-wave processing of powder mixtures capable of an exothermic reaction of the synthesis of metal-ceramic materials. Experiments on shock-wave initiation of synthesis in systems based on Ti-B and Ti-C with 10% and 20% Ni content were carried out. Explosive loading was carried out by oblique throwing of a steel drummer with speeds of 1000 m / s and 1500 m / s. X-ray phase analysis of synthesis products showed the presence of TiB2 diboride and TiC carbide in the nickel bond. The significant role of the mechanical activation of powder mixtures in increasing the sensitivity of SHS-mixtures to shock-wave loading is shown.

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Section: Intorductionmentioning

confidence: 99%

Synthesis in SHS-Mixtures by Explosive Loading

Saikov

Malakhov

Salamatov

et al. 2020

KEM

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“…The design of new systems by coupling a low exothermic reaction with a high exothermic one contributes to the temperature-controlled self-sustaining process and to the preparation of suitable powder precursors for the fabrication of counter-bodies. The effective control over the thermal regime of the process enhances the degree of conversion and homogeneity of the combustion product [ 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

SHS-Derived Powders by Reactions’ Coupling as Primary Products for Subsequent Consolidation

2021

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The capability of self-propagating high-temperature synthesis (SHS) to produce powders that are characterized by a high sintering ability, owing to high heating and cooling rates inherent to the exothermic reaction, is of a special interest for the industry. In particular, SHS-derived powders comprise a significant defect concentration in order to effectively enhance the mass transfer processes during the sintering, which allows for the successful consolidation of difficult-to-sinter materials at relatively low sintering temperatures. From this perspective, the design of precursors suitable for sintering, synthesis in a controlled temperature regime and the optimization of geometrical and structural parameters of SHS powders as a potential feedstock for the consolidation is of key importance. Here, we report on the comparative studies concerning the SHS processing of composites for advanced powder metallurgy techniques. The synthesis and sintering peculiarities of the SHS through coupled reactions in the Me’O3(WO3,MoO3)-Me’’O(CuO,NiO)-Mg-C, Ti-B-Al12Mg17 systems are comparatively reviewed. The SHS coupling approach was used for the preparation of powders with a tuned degree of fineness (a high specific surface area of particles), a high-homogeneity and a controllable distribution of elements via both the regulation of the thermal regime of combustion in a wide range and the matching of the thermal and kinetic requirements of two interconnected reactions. Microstructural features of the powder feedstock greatly contributed to the subsequent consolidation process.

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Multicomponent Powder Initial Composition and Phase Formation in Combustion Synthesis Products

Chumakov

2022

Russ Phys J

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TiC–Fe Powders by Coupled SHS Reactions: An Overview

Cited by 6 publications

References 30 publications

Synthesis in SHS-Mixtures by Explosive Loading

Synthesis in SHS-Mixtures by Explosive Loading

SHS-Derived Powders by Reactions’ Coupling as Primary Products for Subsequent Consolidation

Multicomponent Powder Initial Composition and Phase Formation in Combustion Synthesis Products

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