The influence of Zr substitution in ThMn12 compounds was investigated using strip casting alloys. It was found that Zr substitution stabilized (Nd1-alpha Zr alpha)(Fe0.75Co0.25)(11.25)Ti0.75N1.2-1.4 (alpha = 0-0.3) compounds. Specifically, a reduction in the lattice constant along the a-axis was observed. Energy-dispersive X-ray spectroscopy mapping combined with Cs-corrected scanning transmission electron microscopy indicated that Zr atoms preferentially occupied Nd 2a sites. Both the magnetic anisotropy field and saturation polarization were maximum at Zr substitution ratio alpha = 0.1. The (Nd1-alpha Zr alpha)(Fe0.75Co0.25)(11.25)Ti0.75N1.2-1.4 (alpha = 0-0.3) compounds displayed higher saturation polarization than Nd2Fe14B at high temperatures. (C) 2016 Author(s).
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