Influence of Zr substitution on the stabilization of ThMn{sub 12}-type (Nd{sub 1−α}Zr{sub α})(Fe{sub 0.75}Co{sub 0.25}){sub 11.25}Ti{sub 0.75}N{sub 1.2−1.4} (α = 0–0.3) compounds

Journal Article · Sun May 15 00:00:00 EDT 2016 · AIP Advances

DOI:https://doi.org/10.1063/1.4944521· OSTI ID:22611753

Sakuma, N.; Yano, M.; Kato, A. ^[1]; Suzuki, S.; Kuno, T.; Urushibata, K.; Kobayashi, K. ^[2]; Manabe, A. ^[3]

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1. Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193 (Japan)
2. Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555 (Japan)
3. Technology Research Association of Magnetic Materials for High-Efficiency Motors (MagHEM) Higashifuji-Branch, 1200 Mishuku, Susono, Shizuoka 410-1193 (Japan)

The influence of Zr substitution in ThMn{sub 12} compounds was investigated using strip casting alloys. It was found that Zr substitution stabilized (Nd{sub 1−α}Zr{sub α})(Fe{sub 0.75}Co{sub 0.25}){sub 11.25}Ti{sub 0.75}N{sub 1.2−1.4} (α = 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 α = 0.1. The (Nd{sub 1−α}Zr{sub α})(Fe{sub 0.75}Co{sub 0.25}){sub 11.25}Ti{sub 0.75}N{sub 1.2−1.4} (α = 0–0.3) compounds displayed higher saturation polarization than Nd{sub 2}Fe{sub 14}B at high temperatures.

• OSTI ID: 22611753
• Journal Information: AIP Advances, Vol. 6, Issue 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ANISOTROPY
ATOMS
CASTING
COBALT COMPOUNDS
CRYSTAL STRUCTURE
IRON COMPOUNDS
LATTICE PARAMETERS
NEODYMIUM COMPOUNDS
NITROGEN COMPOUNDS
POLARIZATION
REDUCTION
SATURATION
STABILIZATION
TITANIUM COMPOUNDS
TRANSMISSION
TRANSMISSION ELECTRON MICROSCOPY
X-RAY SPECTROSCOPY
ZIRCONIUM ADDITIONS
ZIRCONIUM COMPOUNDS