High-Temperature Synthesis of Ti–Si–B and Ti–Al–B Composites and Coatings

Лепакова, O. K.; Karakchieva, Natalia; Golobokov, N. N.; Galchenko, N. K.; Афанасьев, Н. И.

doi:10.3103/s106138622003005x

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…As our high-throughput model predicted the highest for Ti AlX (X: B, C and N), we therefore performed a more detailed study of superconductivity in these materials Whilst the structural, electronic, elastic, thermodynamic, and vibrational properties of Ti AlX (X: B, C and N) have been studied theoretically 33 – 37 and experimentally 35 , 38 , we are unaware of any study of superconductivity in these materials. Thus, this work presents an ab initio study of the superconducting , including electron-phonon coupling, as well as structural, electronic and phonon properties of Ti AlX (X: B, C, and N), using the plane-wave pseudopotential approach to density functional theory (DFT).…”

Section: Introductionmentioning

confidence: 99%

Prediction of phonon-mediated superconductivity in new Ti-based M$$_2$$AX phases

Karaca

Byrne

Hasnip

et al. 2022

Sci Rep

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A high-throughput computational method is used to predict 39 new superconductors in the Ti-based M$$_2$$ 2 AX phases, and the best candidates are then studied in more detail using density functional theory electron–phonon coupling calculations. The detailed calculations agree with the simple predictions, and Ti$$_2$$ 2 AlX (X: B, C and N) materials are predicted to have higher values of $$T_c$$ T c than any currently known hexagonal M$$_2$$ 2 AX phases. The electronic states at the Fermi level are dominated by the Ti 3d states. The choice of X (X: B, C and N) has a significant impact on the electronic density of states but not on the phonon characteristics. The electron–phonon coupling parameter for Ti$$_2$$ 2 AlX (X: B, C and N) was determined to be 0.685, 0.743 and 0.775 with a predicted $$T_c$$ T c of 7.8 K, 10.8 K and 13.0 K, respectively.

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Section: Introductionmentioning

confidence: 99%

Prediction of phonon-mediated superconductivity in new Ti-based M$$_2$$AX phases

Karaca

Byrne

Hasnip

et al. 2022

Sci Rep

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“…SHS in the Ti-Si-B system typically lead to the formation of the TiB, TiB 2 , and Ti 5 Si 3 phases, while TiB, TiB 2 , and AlTi 3 are formed from the Ti-Al-B system, respectively. The binary borides Ti 3 SiB 2 , Ti 3 AlB 2 , and Ti 2 AlB, but not MAX phases, were also observed [34]. Ti 3 SiC 2 , with some TiC, was produced by Pampuch through preheating the elements.…”

Section: Shs From Elementsmentioning

confidence: 98%

Combustion Synthesis of MAX Phases: Microstructure and Properties Inherited from the Processing Pathway

Aydinyan

2023

Crystals

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The MAX phases exhibit outstanding combination of strength and ductility which are unique features of both metals and ceramics. The preparation of pure MAX phases has been challenging due to the thermodynamic auspiciousness of intermetallic formation in the ternary systems. This review demonstrates the power of the self-propagating, high-temperature synthesis method, delivers the main findings of the combustion synthesis optimization of the MAX phases, and reveals the influence of the combustion wave on the microstructure features thereof. The possibility of using elements and binary compounds as precursors, oxidizers, and diluents to control the exothermicity was comparatively analyzed from the point of view of the final composition and microstructure in the following systems: Ti-Al-C, Ti-V-Al-C, Cr-V-Al-C, Ti-Cr-Al-C, Ti-Nb-Al-C, Ti-Al-Si-C, Ti-Al-Sn-C, Ti-Al-N, Ti-Al-C-N, Ti-Al-B, Ti-Si-B, Ti-Si-C, Nb-Al-C, Cr-Al-C, Cr-Mn-Al-C, V-Al-C, Cr-V-Al-C, Ta-Al-C, Zr-S-C, Cr-Ga-C, Zr-Al-C, and Mo-Al-C, respectively. The influence of sample preparation (including the processes of preheating, mechanical activation, and microwave heating, sample geometry, porosity, and cold pressing) accompanied with the heating and cooling rates and the ambient gas pressure on the combustion parameters was deduced. The combustion preparation of the MAX phases was then summarized in chronological order. Further improvements of the synthesis conditions, along with recommendations for the products quality and microstructure control were given. The comparison of the mechanical properties of the MAX phases prepared by different approaches was illustrated wherever relevant.

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“…In addition, the introduction of B into the Fe-Ti-Al system will increase the hardness and increase the melting point of the material, and therefore promotes the improvement of wear resistance. Some works (Lepakova et al, 2020) indicate that high-temperature synthesis of Ti-Al-B does not provide triple compounds, but TiB2 , TiB, and AlTi3 compounds (Fig. 2).…”

Section: Al-fe-ti Alloysmentioning

confidence: 99%

A study of the properties and development in technology for obtaining multi-component systems of particle reinforced aluminum and titanium alloys

Gumen¹,

Селина²,

Kruzhkova³

2022

CoOEP

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The article analyzes the groundwork on the influence of alloying contaminants on the structure and mechanical properties of aluminum alloys. Aluminum has become widely used in various parts of machine-building due to its physical properties. However, the main task of modern material science is to increase the strength of aluminum alloys. Therefore, today there is the development of materials and alloys based on aluminum with alloying constituents (copper, silicon, magnesium, zinc, mangan), which are administered in aluminum mainly to increase its strength. Especially attractive are properties of aluminum-doped by transition metals, in particular scandium, zirconium, iron, etc. Finally, conclusions are drawn in order to develop a material based on aluminum with increased hardness, durability, and crack resistance.

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High-Temperature Synthesis of Ti–Si–B and Ti–Al–B Composites and Coatings

Cited by 6 publications

References 20 publications

Prediction of phonon-mediated superconductivity in new Ti-based M$$_2$$AX phases

Prediction of phonon-mediated superconductivity in new Ti-based M$$_2$$AX phases

Combustion Synthesis of MAX Phases: Microstructure and Properties Inherited from the Processing Pathway

A study of the properties and development in technology for obtaining multi-component systems of particle reinforced aluminum and titanium alloys

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