Structural features of layered composite material TiB2/TiAl/Ti6Al4 obtained by unrestricted SHS-compression

Prokopets, A. D.; Бажин, П. М.; Konstantinov, A. S.; Чижиков, А. П.; Antipov, M. S.; Авдеева, В. В.

doi:10.1016/j.matlet.2021.130165

Cited by 20 publications

(3 citation statements)

References 12 publications

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“…Metal borides and related compounds provide ample opportunities for multivariate combination of metal–metal, metal–boron and boron–boron bonds in the resulting phases, thereby providing the possibility of directed changes in their physical, chemical and strength properties [ 157 , 158 , 159 , 160 , 161 , 162 ]. The most well-known methods of preparing metal borides include: (i) the reaction of metals and boron; (ii) the reduction of metal and boron from oxides when allowing to react with carbon or metals; (iii) the electrolytic reduction of metal and boron from their compounds; and (iv) the thermal dissociation of unstable compounds containing boron and metals.…”

Section: Boron Cluster Anions As Boron Source For Boron-containing Ma...mentioning

confidence: 99%

Composites and Materials Prepared from Boron Cluster Anions and Carboranes

Avdeeva,

Nikiforova,

Malinina

et al. 2023

Materials

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Here, we present composites and materials that can be prepared starting with boron hydride cluster compounds (decaborane, decahydro-closo-decaborate and dodecahydro-closo-dodecaborate anions and carboranes). Recent examples of their utilization as boron protective coatings including using them to synthesize boron carbide, boron nitride, metal borides, metal-containing composites, and neutron shielding materials are discussed. The data are generalized demonstrate the versatile application of materials based on boron cluster anions and carboranes in various fields.

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Section: Boron Cluster Anions As Boron Source For Boron-containing Ma...mentioning

confidence: 99%

Composites and Materials Prepared from Boron Cluster Anions and Carboranes

Avdeeva,

Nikiforova,

Malinina

et al. 2023

Materials

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“…More than 90% of produced vanadium is added into steel as an intermediate alloy in the form of ferrovanadium (e.g., FeV50, FeV60, FeV80), which is mainly prepared by the self-propagating high-temperature synthesis (SHS) process with a mixture composed of vanadium oxides, reducing agents and fluxing agents [20]. The SHS process is also known as combustion synthesis and involves combustion modes and thermal explosion modes through chemical reactions, which are widely applied to the preparation of master compounds and alloys [21][22][23][24]. The SHS technology is propelled by the heat release from chemical reactions completely or partially, and nearly no external heat sources are needed.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Novel High-Efficiency SHS-EAH Multi-Stage DG-ADP Process for Cleaner Production of High-Quality Ferrovanadium Alloy

Yu,

Yuan,

Shi

et al. 2024

Metals

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A novel high-efficiency industrialized clean production technology based on multi-stage gradient batching and smelting was proposed for the production of high-quality ferrovanadium. The thermodynamic mechanism of aluminothermic reduction equilibrium, alloy settlement and raw material impurity distribution were confirmed, and a multi-stage double-gradient aluminum addition pattern (DG-ADP), the highly efficient separation of molten slag and alloy, and typical impurity control standards of raw materials were achieved on the basis of a self-propagating high-temperature synthesis with an electric auxiliary heating (SHS-EAH) process. The reduction efficiency, separation efficiency and the comprehensive utilization rate of the secondary resources were significantly improved, as the whole total vanadium (T.V) content in the industrially produced residue slag reduced from 2.34 wt.% to 0.60 wt.%, while the corresponding smelting yield increased from 93.7 wt.% to 98.7 wt.% and the aluminum consumption decreased from 510 kg·t−1 to 400 kg·t−1. The multi-stage DG-ADP process enabled the internal circulation of vanadium-bearing materials in the ferrovanadium smelting system, as well as the external circulation of iron and residue slag in the same system, and finally achieved the zero discharge of solid and liquid waste from the ferrovanadium production line, which provides a brand-new perspective for the cleaner production of ferrovanadium alloy.

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“…This fact makes titanium monoboride the most suitable candidate for the development of layered composite materials (LCMs) based on TiB/TiAl(Nb,Mo)B. The deliberate design and formation of a layered composite have the potential to enhance its physical and mechanical properties [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Compactability Regularities Observed during Cold Uniaxial Pressing of Layered Powder Green Samples Based on Ti-Al-Nb-Mo-B and Ti-B

Bazhin,

Konstantinov,

Chizhikov

et al. 2023

Metals

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We determined the compactability regularities observed during the cold uniaxial pressing of layered powder green samples, taking into account factors such as composition, height, and number of Ti–B (TiB) and Ti–Al–Nb–Mo–B (TNM) layers. The following composition was chosen for the TNM layer at %: 51.85Ti–43Al–4Nb–1Mo–0.15B, while for the Ti-B layer we selected the composition wt %: Ti-B-(20, 30, 40) Ti. Green samples were made containing both 100 vol % TiB and TNM, and those taken in the following proportions, vol %: 70TiB/30TNM, 50TiB/50TNM, 30TiB/70TNM; multilayer green samples were studied in the following proportions, vol %: 35TiB/30TNM/35TiB, 25TiB/25TNM/25TiB/25TNM, 35TNM/30TiB/35TNM. Based on the obtained rheological data, we determined the rheological characteristics of the layered green samples, including compressibility modulus, compressibility coefficient, relaxation time, and limiting value of linear section deformation. These characteristics were found to vary depending on the composition, height, and number of layers. Our findings revealed that reducing the TNM content in the charge billet composition improves the compaction of powder materials under the given technological parameters of uniaxial cold pressing. Moreover, we observed that increasing the boron content and decreasing the amount of titanium in the Ti–B composition enhances the compactability of powder materials. We also established a relationship between the compaction pressure interval and the density of the layered powder green sample.

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Structural features of layered composite material TiB2/TiAl/Ti6Al4 obtained by unrestricted SHS-compression

Cited by 20 publications

References 12 publications

Composites and Materials Prepared from Boron Cluster Anions and Carboranes

Composites and Materials Prepared from Boron Cluster Anions and Carboranes

Evaluation of a Novel High-Efficiency SHS-EAH Multi-Stage DG-ADP Process for Cleaner Production of High-Quality Ferrovanadium Alloy

Compactability Regularities Observed during Cold Uniaxial Pressing of Layered Powder Green Samples Based on Ti-Al-Nb-Mo-B and Ti-B

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