Structure and Electrical Properties of AlFe Matrix Composites with Graphene.

Autor: Petrova, Anastasiia N., Rasposienko, Dmitry Y., Brodova, Irina G., Yolshina, Liudmila A., Muradymov, Roman V., Markin, Artem A., Marchenkov, Vyacheslav V., Fominykh, Bogdan M.
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Zdroj: Applied Sciences (2076-3417); Sep2023, Vol. 13 Issue 18, p10501, 13p
Abstrakt: Composites based on Al-Fe alloys and reinforced with three-layer graphene sheets were synthesized "in situ" under a layer of molten salts. Composites containing 0.12 wt.% graphene were subjected to severe plastic deformation via high-pressure torsion. SEM and TEM were used to study the morphological and size characteristics of the composite structure in the as-cast and deformed states. Herein, it is shown that severe plastic deformation leads to the deformation-induced dissolution of iron-containing aluminides with the formation of a supersaturated Al solid solution with a submicrocrystalline structure. The hardness and electrical properties of the graphene composites were measured in different structural states and compared to the characteristics of the matrix alloy. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index