The stability of newly developed (R,Zr)(Fe,Co)_12−xTi_x alloys for permanent magnets

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• 作者：K. Kobayashi^a ; ^{koba@ms.sist.ac.jp} ; S. Suzuki^a ; T. Kuno^a ; K. Urushibata^a ; N. Sakuma^b ; ^c ; M. Yano^b ; ^c ; T. Shouji^b ; ^c ; ^{tetsuya_shoji@mail.toyota.co.jp} ; A. Kato^b ; ^c ; A. Manabe^c
• 关键词：ThMn12 structure ; (R ; Zr)(Fe ; Co)12&minus ; xTixNy (R = Nd ; y > ; 0 ; and R = Sm ; y = 0) compounds ; Permanent magnet ; Cs-STEM
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：694
• 期：Complete
• 页码：914-920
• 全文大小：2443 K
• 卷排序：694

文摘

Atomic substitutions in newly developed ThMn12-structure magnet materials. Substitution of Ti for Fe(8i) site and Zr for R(2a) site are confirmed by Cs-STEM. Amount of precipitated α-(Fe,Co) phase increased with Tix decreasing (x = 1.0 → 0.5). Zr substitution for R(2a) sites stabilized ThMn12 structure in Ti-poor phase. Tix (x = 0.5–0.75) and Zry (y = 0.1–0.3) is optimum composition for properties.