Elimination of Composition Segregation in 33Al–45Cu–22Fe (at.%) Powder by Two-Stage High-Energy Mechanical Alloying Научная публикация
Журнал |
Materials
ISSN: 1996-1944 |
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Вых. Данные | Год: 2022, Том: 15, Номер: 6, Номер статьи : 2087, Страниц : 16 DOI: 10.3390/ma15062087 | ||||||||||
Ключевые слова | mechanical alloying; powder; Cu–Fe alloy; Cu–Fe–Al alloy; catalysts | ||||||||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Белорусский республиканский фонд фундаментальных исследований | Т20Р-049 |
2 | Российский фонд фундаментальных исследований | 20-53-00003 |
Реферат:
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).
Библиографическая ссылка:
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 CAPlus PMID OpenAlex
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 CAPlus PMID OpenAlex
Даты:
Поступила в редакцию: | 18 янв. 2022 г. |
Принята к публикации: | 4 мар. 2022 г. |
Опубликована в печати: | 11 мар. 2022 г. |
Опубликована online: | 11 мар. 2022 г. |
Идентификаторы БД:
Web of science: | WOS:000775181900001 |
Scopus: | 2-s2.0-85126782800 |
РИНЦ: | 48194695 |
Chemical Abstracts: | 2022:822374 |
PMID (PubMed): | 35329537 |
OpenAlex: | W4220931251 |