Phase Evolution During Early Stages of Mechanical Alloying of Cu-13 wt.% Al Powder Mixtures in a High-Energy Ball Mill

Phase Evolution During Early Stages of Mechanical Alloying of Cu-13 wt.% Al Powder Mixtures in a High-Energy Ball Mill Научная публикация

Журнал

Journal of Alloys and Compounds
ISSN: 0925-8388

Вых. Данные

Год: 2015, Том: 629, Страницы: 343-350 Страниц : 8 DOI: 10.1016/j.jallcom.2014.12.120

Авторы

Dudina Dina V. ¹ , Lomovsky Oleg I. ¹ , Valeev Konstantin R. ² , Tikhov Serguey F. ² , Boldyreva Natalya N. ² , Salanov Aleksey N. ^2,3 , Cherepanova Svetlana V. ^2,3 , Zaikovskii Vladimir I. ^2,3 , Andreev Andrey S. ^2,3,4 , Lapina Olga B. ^2,3 , Sadykov Vladislav A. ^2,3

Организации

1	Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze str. 18, Novosibirsk 630128, Russia
2	Boreskov Institute of Catalysis SB RAS, pr. Lavrentieva 5, Novosibirsk 630090, Russia
3	Novosibirsk State University (NSU), Pirogova str. 2, Novosibirsk 630090, Russia
4	Soft Matter Sciences and Engineering Laboratory, UMR 7615 CNRS UPMC, ESPCI ParisTech, 10 rue Vauquelin, Paris 75005, France

We report the phase and microstructure evolution of the Cu-13 wt.% Al mixture during treatment in a high-energy planetary ball mill with a particular focus on the early stages of mechanical alloying. Several characterization techniques, including X-ray diffraction phase analysis, nuclear magnetic resonance spectroscopy, differential dissolution, thermal analysis, and electron microscopy/elemental analysis, have been combined to study the evolution of the phase composition of the mechanically alloyed powders and describe the microstructure of the multi-phase products of mechanical alloying at different length scales. The following reaction sequence has been confirmed: Cu + Al → CuAl2(+Cu) → Cu9Al4 + (Cu) → Cu(Al). The phase evolution was accompanied by the microstructure changes, the layered structure of the powder agglomerates disappearing with milling time. This scheme is further complicated by the processes of copper oxidation, reduction of copper oxides by metallic aluminum, and by variation of the stoichiometry of Cu(Al) solid solutions with milling time. Substantial amounts of X-ray amorphous phases were detected as well. Differential dissolution technique has revealed that a high content of aluminum in the Cu(Al) solid solution-based powders is due to the presence of Al-rich phases distributed between the Cu(Al) crystallites.

Dudina D.V. , Lomovsky O.I. , Valeev K.R. , Tikhov S.F. , Boldyreva N.N. , Salanov A.N. , Cherepanova S.V. , Zaikovskii V.I. , Andreev A.S. , Lapina O.B. , Sadykov V.A.
Phase Evolution During Early Stages of Mechanical Alloying of Cu-13 wt.% Al Powder Mixtures in a High-Energy Ball Mill
Journal of Alloys and Compounds. 2015. V.629. P.343-350. DOI: 10.1016/j.jallcom.2014.12.120 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Поступила в редакцию:	8 авг. 2014 г.
Принята к публикации:	1 дек. 2014 г.
Опубликована online:	14 янв. 2015 г.
Опубликована в печати:	1 апр. 2015 г.

Web of science:	WOS:000349699700053
Scopus:	2-s2.0-84921666481
РИНЦ:	23968900
Chemical Abstracts:	2015:80293
Chemical Abstracts (print):	162:248970
OpenAlex:	W2089725567
Sciact:	4904

БД	Цитирований
OpenAlex	36