Iron–chromium alloy nanoparticles produced by pulsed sonoelectrochemistry: Synthesis and characterization

This study describes synthesis of Fe–Cr alloy nanoparticles by using a method which couples electrodeposition of metals with the employment of high power ultrasound. The production of alloyed nanoparticles was performed using a 20 kHz titanium alloy horn ultrasound generator, a “sonoelectrode” gener...

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Bibliographic Details
Published in:Acta materialia 2010, Vol.58 (1), p.311-319
Main Authors: Zin, Valentina, Dabalà, Manuele
Format: Article
Language:English
Subjects:
Applied sciences
Electrochemistry
Exact sciences and technology
Iron alloys
Metals. Metallurgy
Nanocrystalline materials
Nanostructure
Ultrasound
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Summary:This study describes synthesis of Fe–Cr alloy nanoparticles by using a method which couples electrodeposition of metals with the employment of high power ultrasound. The production of alloyed nanoparticles was performed using a 20 kHz titanium alloy horn ultrasound generator, a “sonoelectrode” generating short current pulses ( t ON) triggered and followed immediately by ultrasonic pulses ( t US). A rest time ( t r ) restores the initial conditions close to the sonoelectrode. The final product is a suspension of nanoparticles with high purity and high surface/volume ratio, which could be controlled by varying process parameters like time management and current density.
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2009.09.009