(Sm,Zr)(Fe,Co)11.0-11.5Ti1.0-0.5 compounds as new permanent magnet materials
Tomoko Kuno,
Shunji Suzuki,
Kimiko Urushibata,
Kurima Kobayashi,
Noritsugu Sakuma,
Masao Yano,
Akira Kato,
Akira Manabe
Affiliations
Tomoko Kuno
Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
Shunji Suzuki
Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
Kimiko Urushibata
Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
Kurima Kobayashi
Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka 437-8555, Japan
Noritsugu Sakuma
Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
Masao Yano
Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
Akira Kato
Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
Akira Manabe
Technology Research Association of Magnetic Materials for High-efficiency Motors (Mag-HEM) Higashifuji-Branch, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
We investigated (Sm,Zr)(Fe,Co)11.0-11.5Ti1.0-0.5 compounds as permanent magnet materials. Good magnetic properties were observed in (Sm0.8Zr0.2)(Fe0.75Co0.25)11.5Ti0.5 powder containing a limited amount of the α-(Fe, Co) phase, including saturation polarization (Js) of 1.63 T, an anisotropic field (Ha) of 5.90 MA/m at room temperature, and a Curie temperature (Tc) of about 880 K. Notably, Js and Ha remained above 1.5 T and 3.70 MA/m, respectively, even at 473 K. The high-temperature magnetic properties of (Sm0.8Zr0.2)(Fe0.75Co0.25)11.5Ti0.5 were superior to those of Nd2Fe14B.
