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Volume 12
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10.3390/met12030478
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Article

Synthesis of Ti–Al Bimodal Powder for High Flowability Feedstock by Electrical Explosion of Wires

by
Marat Lerner
1,2,
Alexander Pervikov
1,2,
Elena Glazkova
2,*,
Nikolay Rodkevich
2,
Konstantin Suliz
2,
Sergey Kazantsev
2,
Nikita Toropkov
1,2 and
Olga Bakina
2
1
National Research Tomsk State University, 634050 Tomsk, Russia
2
Institute of Strength Physics and Material Science, Siberian Branch of Russian Academy of Science, 634055 Tomsk, Russia
*
Author to whom correspondence should be addressed.
Metals 2022, 12(3), 478; https://doi.org/10.3390/met12030478
Submission received: 25 January 2022 / Revised: 28 February 2022 / Accepted: 8 March 2022 / Published: 11 March 2022
(This article belongs to the Special Issue Today and Tomorrow of Processing Techniques for Metal Powders: Properties and Applications)
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Abstract

In this research, Ti–Al bimodal powders were produced by simultaneous electrical explosion of titanium and aluminum wires. The resulting powders were used to prepare powder–polymer feedstocks. Material characterization involving X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and melt flow index (MFI) determination were carried out to characterize bimodal powders obtained and evaluate the influence of the powder composition on the feedstock flowability. The bimodal distribution of particles in powders has been found to be achieved at a current density of 1.2 × 107 A/cm2 (the rate of energy input is 56.5 J/μs). An increase in the current density to 1.6 × 107 A/cm2 leads to a decrease in the content of micron particles and turning into a monomodal particle size distribution. The use of bimodal powders for powder–polymer feedstocks allows to achieve higher MFI values compared with monomodal powders. In addition, the use of electroexplosive synthesis of bimodal powders makes it possible to achieve a homogeneous distribution of micro- and nanoparticles in the feedstock.
Keywords: electrical explosion; wire; energy; Ti–Al; bimodal powder; microparticles; nanoparticles; homogeneous; bimodal feedstock; flowability electrical explosion; wire; energy; Ti–Al; bimodal powder; microparticles; nanoparticles; homogeneous; bimodal feedstock; flowability

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MDPI and ACS Style

Lerner, M.; Pervikov, A.; Glazkova, E.; Rodkevich, N.; Suliz, K.; Kazantsev, S.; Toropkov, N.; Bakina, O. Synthesis of Ti–Al Bimodal Powder for High Flowability Feedstock by Electrical Explosion of Wires. Metals 2022, 12, 478. https://doi.org/10.3390/met12030478

AMA Style

Lerner M, Pervikov A, Glazkova E, Rodkevich N, Suliz K, Kazantsev S, Toropkov N, Bakina O. Synthesis of Ti–Al Bimodal Powder for High Flowability Feedstock by Electrical Explosion of Wires. Metals. 2022; 12(3):478. https://doi.org/10.3390/met12030478

Chicago/Turabian Style

Lerner, Marat, Alexander Pervikov, Elena Glazkova, Nikolay Rodkevich, Konstantin Suliz, Sergey Kazantsev, Nikita Toropkov, and Olga Bakina. 2022. "Synthesis of Ti–Al Bimodal Powder for High Flowability Feedstock by Electrical Explosion of Wires" Metals 12, no. 3: 478. https://doi.org/10.3390/met12030478

APA Style

Lerner, M., Pervikov, A., Glazkova, E., Rodkevich, N., Suliz, K., Kazantsev, S., Toropkov, N., & Bakina, O. (2022). Synthesis of Ti–Al Bimodal Powder for High Flowability Feedstock by Electrical Explosion of Wires. Metals, 12(3), 478. https://doi.org/10.3390/met12030478

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