Synthesis of high magnetization FeCo alloys prepared by a modified polyol process

Authors

Zachary J. Huba, Virginia Commonwealth University
Kyler J. Carroll, Virginia Commonwealth University
Everett E. Carpenter, Virginia Commonwealth UniversityFollow

Document Type

Article

Original Publication Date

2011

Journal/Book/Conference Title

Journal of Applied Physics

Volume

109

Issue

7

DOI of Original Publication

10.1063/1.3544430

Comments

Originally published at http://dx.doi.org/10.1063/1.3544430

Date of Submission

October 2015

Abstract

High magnetization, soft ferromagnetic FeCo alloy nanoparticles were synthesized at various Fe to Co ratios using a modified polyol process. Transmission electron microscopy images revealed that Fe-rich particles had a cubic shape with a mean particle size of 100 nm, while Co-rich particles had a spherical shape. A maximum saturation magnetization of 212 emu/g was recorded for both Fe₆₀Co₄₀ and Fe₇₅Co₂₅ particles. X-ray diffraction scans at room temperatureof synthesized particles were characteristic of body-centered-cubic single-phase FeCo. Variabletemperature x-ray diffraction scans under N₂ gas revealed an order–disorder transition at 600 °C and a transition to a face-centered-cubic crystal structure at 1000 °C.

Rights

Huba, Z. J., Carroll, K. J., & Carpenter, E. E. Synthesis of high magnetization FeCo alloys prepared by a modified polyol process. Journal of Applied Physics, 109, 07B514 (2011). Copyright © 2011 American Institute of Physics.

Is Part Of

VCU Chemistry Publications