Issue 4, 2019

Synthesis of α′′-Fe16N2 ribbons with a porous structure

Abstract

The microstructure of FeCuB ribbons (∼20 μm thick) was modified to fabricate α′′-Fe16N2 at a temperature as low as 160 °C. The ribbon samples were heat treated first at a temperature reaching 930 °C and then quenched down to room temperature. During the heat treatment, ribbon samples were oxidized, and hydrogen reduction was then conducted to remove the oxygen from the ribbon samples. The reduced ribbon samples had a porous structure, which improved the nitrogen diffusion efficiency and decreased the fabrication temperature of α′′-Fe16N2 down to 160 °C. It was demonstrated that the techniques for microstructure control in this method including oxidation and reduction helped obtain the α′′-Fe16N2 phase with high coercivity, thus manifesting this could be a promising technique for low-temperature nitridation on ribbons in general.

Graphical abstract: Synthesis of α′′-Fe16N2 ribbons with a porous structure

Supplementary files

Article information

Article type
Paper
Submitted
04 Jan 2019
Accepted
03 Mar 2019
First published
12 Mar 2019
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2019,1, 1337-1342

Synthesis of α′′-Fe16N2 ribbons with a porous structure

J. Liu, G. Guo, F. Zhang, Y. Wu, B. Ma and J. Wang, Nanoscale Adv., 2019, 1, 1337 DOI: 10.1039/C9NA00008A

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