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Synthesis and Characterization of Fe-Co Alloy Nanoparticles

Published

Author(s)

J H. Scott, Dale Newbury

Abstract

FeCo nanoparticles are synthesized using a radio frequency (RF) plasma torch. These alloy nanoparticles ([approximate] 50 nm diameter) are nucleated in the gas phase from a vapor produced by evaporating much larger metal powder precursors ([approximate] 10 um diameter) in the thermal plasma. To study the effects of precursor homogeneity on the synthesis, two different starting materials were used: (1) pre-alloyed FeCo powder produced by inert gas atomization, and (2) a mixture of commercial elemental Fe and Co powders. X-ray powder diffraction, SEM, TEM, and x-ray microanalysis were used to characterize the morphology, structure, and chemical homogeneity of the precursors and products. Both starting materials produced alloy product, but nanoparticles produced from pre-alloyed precursors exhibited smaller variations in Fe/Co ratio than particles produced from elemental powders.
Citation
Synthesis and Characterization of Fe-Co Alloy Nanoparticles

Keywords

Fe-Co alloy, nanoparticles, SEM, TEM, thermal plasma synthesis, x-ray diffraction

Citation

Scott, J. and Newbury, D. (1998), Synthesis and Characterization of Fe-Co Alloy Nanoparticles, Synthesis and Characterization of Fe-Co Alloy Nanoparticles (Accessed June 25, 2024)

Issues

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Created December 31, 1997, Updated October 12, 2021