Elimination of Composition Segregation in 33Al–45Cu–22Fe (at.%) Powder by Two-Stage High-Energy Mechanical Alloying

Elimination of Composition Segregation in 33Al–45Cu–22Fe (at.%) Powder by Two-Stage High-Energy Mechanical Alloying Full article

Journal

Materials
ISSN: 1996-1944

Output data

Year: 2022, Volume: 15, Number: 6, Article number : 2087, Pages count : 16 DOI: 10.3390/ma15062087

Tags

CATALYSTS, CU-FE ALLOY, CU-FE-AL ALLOY, MECHANICAL ALLOYING, POWDER

Authors

Tikhov Serguei ¹ , Valeev Konstantin ¹ , Cherepanova Svetlana ¹ , Zaikovskii Vladimir ¹ , Salanov Aleksei ¹ , Sadykov Vladislav ¹ , Dudina Dina ^2,3 , Lomovsky Oleg ³ , Petrov Sergey ³ , Smorygo Oleg ⁴ , Gokhale Amol ⁵

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Lavrentyev Ave. 5, 630090 Novosibirsk, Russia
2	Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentyev Ave. 15, 630090 Novosibirsk, Russia
3	Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia
4	O.V. Roman Powder Metallurgy Institute, National Academy of Sciences of Belarus, 41 Platonov Str., 220005 Minsk, Belarus
5	Indian Institute of Technology Bombay, Powai, Mumbai 400076, India

Funding (1)

Министерство науки и высшего образования Российской Федерации

FWGG-2021-0005

In the present work, complex powder alloys containing spinel as a minor phase were produced by mechanical alloying in a high-energy planetary ball mill from a 33Al–45Cu–22Fe (at.%) powder blend. These alloys show characteristics suitable for the synthesis of promising catalysts. The alloying was conducted in two stages: at the first stage, a Cu+Fe powder mixture was ball-milled for 90 min; at the second stage, Al was added, and the milling process was continued for another 24 min. The main products of mechanical alloying formed at each stage were studied using X-ray diffraction phase analysis, Mössbauer spectroscopy, transmission electron microscopy, and energy-dispersive spectroscopy. At the end of the first stage, crystalline iron was not found. The main product of the first stage was a metastable Cu(Fe) solid solution with a face-centered cubic structure. At the second stage, the Cu(Fe) solid solution transformed to Cu(Al), several Fe-containing amorphous phases, and a spinel phase. The products of the two-stage process were different from those of the single-stage mechanical alloying of the ternary elemental powder mixture; the formation of undesirable intermediate phases was avoided, which ensured excellent composition uniformity. A sequence of solid-state reactions occurring during mechanical alloying was proposed. Mesopores and a spinel phase were the features of the two-stage milled material (both are desirable for the target catalyst).

Tikhov S. , Valeev K. , Cherepanova S. , Zaikovskii V. , Salanov A. , Sadykov V. , Dudina D. , Lomovsky O. , Petrov S. , Smorygo O. , Gokhale A.
Elimination of Composition Segregation in 33Al–45Cu–22Fe (at.%) Powder by Two-Stage High-Energy Mechanical Alloying
Materials. 2022. V.15. N6. 2087 :1-16. DOI: 10.3390/ma15062087 WOS Scopus РИНЦ OpenAlex

Web of science:	WOS:000775181900001
Scopus:	2-s2.0-85126782800
Elibrary:	48194695
OpenAlex:	W4220931251

DB	Citing
OpenAlex	7
Elibrary	5
Scopus	6
Web of science	6