Fabrication of Fe-Cu composites from electroexplosive bimetallic nanoparticles by spark plasma sintering

A. S. Lozhkomoev, A. V. Pervikov, A. V. Chumaevsky, E. S. Dvilis, V. D. Paygin, O. L. Khasanov, M. I. Lerner

Innovation Centre for Nanomaterials and Nanotechnologies

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Abstract

The electrical explosion of two intertwined wires made of copper and iron makes it possible to synthesize Janus-like bimetallic nanoparticles comprised of Cu and Fe where the average nanoparticles size is 89 nm. We used spark plasma sintering (SPS) to fabricate a 3D composite material that included 47 wt% of Fe, and 53 wt% of Cu. It had even component distribution, relative density of 92.93% and microhardness of 265.1 HV. The microhardness of the fabricated composite is significantly higher than the values estimated according to the rule of mixtures. The properties of the Fe-53Cu 3D material suggest that the fine-grain structure is maintained after bimetallic nanoparticles that have Janus-like structure have been subjected to SPS.

Original language	English
Article number	108980
Journal	Vacuum
Volume	170
DOIs	https://doi.org/10.1016/j.vacuum.2019.108980
Publication status	Published - 1 Dec 2019

ASJC Scopus subject areas

Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films

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title = "Fabrication of Fe-Cu composites from electroexplosive bimetallic nanoparticles by spark plasma sintering",

abstract = "The electrical explosion of two intertwined wires made of copper and iron makes it possible to synthesize Janus-like bimetallic nanoparticles comprised of Cu and Fe where the average nanoparticles size is 89 nm. We used spark plasma sintering (SPS) to fabricate a 3D composite material that included 47 wt% of Fe, and 53 wt% of Cu. It had even component distribution, relative density of 92.93% and microhardness of 265.1 HV. The microhardness of the fabricated composite is significantly higher than the values estimated according to the rule of mixtures. The properties of the Fe-53Cu 3D material suggest that the fine-grain structure is maintained after bimetallic nanoparticles that have Janus-like structure have been subjected to SPS.",

author = "Lozhkomoev, {A. S.} and Pervikov, {A. V.} and Chumaevsky, {A. V.} and Dvilis, {E. S.} and Paygin, {V. D.} and Khasanov, {O. L.} and Lerner, {M. I.}",

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AU - Lozhkomoev, A. S.

AU - Pervikov, A. V.

AU - Chumaevsky, A. V.

AU - Dvilis, E. S.

AU - Paygin, V. D.

AU - Khasanov, O. L.

AU - Lerner, M. I.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - The electrical explosion of two intertwined wires made of copper and iron makes it possible to synthesize Janus-like bimetallic nanoparticles comprised of Cu and Fe where the average nanoparticles size is 89 nm. We used spark plasma sintering (SPS) to fabricate a 3D composite material that included 47 wt% of Fe, and 53 wt% of Cu. It had even component distribution, relative density of 92.93% and microhardness of 265.1 HV. The microhardness of the fabricated composite is significantly higher than the values estimated according to the rule of mixtures. The properties of the Fe-53Cu 3D material suggest that the fine-grain structure is maintained after bimetallic nanoparticles that have Janus-like structure have been subjected to SPS.

AB - The electrical explosion of two intertwined wires made of copper and iron makes it possible to synthesize Janus-like bimetallic nanoparticles comprised of Cu and Fe where the average nanoparticles size is 89 nm. We used spark plasma sintering (SPS) to fabricate a 3D composite material that included 47 wt% of Fe, and 53 wt% of Cu. It had even component distribution, relative density of 92.93% and microhardness of 265.1 HV. The microhardness of the fabricated composite is significantly higher than the values estimated according to the rule of mixtures. The properties of the Fe-53Cu 3D material suggest that the fine-grain structure is maintained after bimetallic nanoparticles that have Janus-like structure have been subjected to SPS.

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