期刊
PHYSICS OF METALS AND METALLOGRAPHY
卷 122, 期 4, 页码 370-375出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0031918X21030066
关键词
mechanochemical synthesis; intermetallic compounds; solid solutions; copper; aluminum; X-ray diffraction analysis
资金
- Russian Foundation for Basic Research [20-53-00037]
- Belarusian Foundation for Basic Research
X-ray diffraction analysis was used to study the mechanochemical formation of a solid solution in the Cu-10 wt % Al system. The formation of the solid solution was found to occur via the formation of CuAl2 and Cu9Al4 intermetallic compounds, with a maximum Al concentration of 7.4 wt % in the solid solution. The two-phase product formed under the conditions of mechanical activation in a high-energy planetary ball mill consisted of 90 wt % Cu(Al) + 10 wt % Cu9Al4.
X-ray diffraction analysis is used to study the mechanochemical formation of a solid solution in the Cu-10 wt % Al system. The formation of the solid solution is shown to occur via the formation of the CuAl2 and Cu9Al4 intermetallic compounds, which, in the course of mechanical activation, react with residual copper to form the Cu(Al), solid solution of aluminum in copper. Under the conditions of mechanical activation in a high-energy planetary ball mill, the two-phase product of the mechanochemical synthesis, namely, 90 wt % Cu(Al) + 10 wt % Cu9Al4 forms is formed. It is shown that the maximum reached Al concentration in the solid solution is 7.4 wt %. The microstresses of the solid solution are similar to 1%; the crystallite size reaches 35-40 nm.
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