Phase Evolution During Early Stages of Mechanical Alloying of Cu-13 wt.% Al Powder Mixtures in a High-Energy Ball Mill | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Journal

Journal of Alloys and Compounds
ISSN: 0925-8388 , E-ISSN: 1873-4669

Output data

Year: 2015, Volume: 629, Pages: 343-350 Pages count : 8 DOI: 10.1016/j.jallcom.2014.12.120

Tags

Intermetallides, Mechanical alloying and milling, Microstructure, Spectroscopic methods

Authors

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

Affiliations

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

Funding (4)

1	Russian Foundation for Basic Research	14-08-00251
2	The Ministry of Education and Science of the Russian Federation
3	French Embassy in Moscow
4	Council for Grants of the President of the Russian Federation	СП-389.2012.1

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 OpenAlex ANCAN

Submitted:	Aug 8, 2014
Accepted:	Dec 1, 2014
Published online:	Jan 14, 2015
Published print:	Apr 1, 2015

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

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