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公开(公告)号：US5716462A
公开(公告)日：1998-02-10
申请号：US671595
申请日：1996-06-28
申请人： Shinya Sakurada , Akihiko Tsutai , Takahiro Hirai , Yoshitaka Yanagita , Masashi Sahashi , Tomohisa Arai , Keisuke Hashimoto
发明人： Shinya Sakurada , Akihiko Tsutai , Takahiro Hirai , Yoshitaka Yanagita , Masashi Sahashi , Tomohisa Arai , Keisuke Hashimoto
CPC分类号： H01F1/057 , H01F1/0578 , H01F1/058 , H01F1/059
摘要： There is provided a magnetic material having a TbCu.sub.7 phase as a principal phase and excellent in residual magnetic flux density. This magnetic material is formed of a composition represented by a general formula: R1.sub.x R2.sub.y B.sub.z A.sub.u M.sub.100-x-y-z-u wherein R1 is at least one element selected from rare earth elements including Y; R2 is at least one element selected from Zr, Hf and Sc; A is at least one element selected from H, N, C and P; M is at least one element selected from Fe and Co; x, y, z and u represent are atomic percent individually defined as 2.ltoreq.x, 2.ltoreq.x+y.ltoreq.20, 0.001.ltoreq.z.ltoreq.10, 0.ltoreq.u.ltoreq.20; and a principal phase of the magnetic material having a TbCu.sub.7 type crystal structure.
摘要翻译： 提供了具有TbCu7相作为主相的磁性材料，并且剩余磁通密度优异。 该磁性材料由通式R1xR2yBzAuM100-x-y-z-u表示的组合物形成，其中R1为选自包括Y在内的稀土元素中的至少一种元素; R2是选自Zr，Hf和Sc中的至少一种元素; A是选自H，N，C和P中的至少一种元素; M是选自Fe和Co中的至少一种元素; x，y，z和u表示的是原子百分比，分别定义为2，x，2，...，x，y = 20,0.001， 20; 以及具有TbCu7型晶体结构的磁性材料的主相。
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公开(公告)号：US5549766A
公开(公告)日：1996-08-27
申请号：US288808
申请日：1994-08-12
申请人： Akihiko Tsutai , Takahiro Hirai , Shinya Sakurada
发明人： Akihiko Tsutai , Takahiro Hirai , Shinya Sakurada
摘要： A permanent magnet is composed of a magnetic material which is represented by a general formula R1.sub.x R2.sub.y A.sub.z Co.sub.u Fe.sub.100-x-y-z-u (where R1 is at least one element selected from rare earth elements, R2 is at least one element selected from the group consisting of Sc, Zr and Hf, A is at least one element selected from the group of C, N and P, and x,y,z and u are atomic percent defined as 2.ltoreq.x, 4.ltoreq.x+y.ltoreq.20, 0.ltoreq.z.ltoreq.20, 0.ltoreq.u.ltoreq.70), wherein the material includes a principal phase of TbCu.sub.7 structure and .alpha.-Fe, a peak width at half height of the main peak of X-ray diffraction of the principal phase obtained by using Cu-K.alpha. X-rays with the resolution of 0.02.degree. or less is about 0.8.degree. or less, and a ratio of peak intensity between the principal phase and .alpha.-Fe satisfies a relation that the value of I.sub.Fe /(I.sub.p +I.sub.Fe) is about 0.4 or less where I.sub.p is the peak intensity of main peak of X-ray diffraction of the principal phase obtained by using Cu-K.alpha. X-rays and I.sub.Fe is that of .alpha.-Fe.
摘要翻译： 永久磁铁由通式为R1xR2yAzCouFe100-xyzu（其中R1为选自稀土元素中的至少一种元素，R2为选自Sc，Zr和Hf中的至少一种元素）的磁性材料构成 A是选自C，N和P组中的至少一种元素，x，y，z和u是原子百分比，其定义为2
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公开(公告)号：US5456769A
公开(公告)日：1995-10-10
申请号：US203371
申请日：1994-03-01
申请人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai
发明人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai
摘要： Disclosed is a magnetic material which exhibits an improved saturation magnetic flux density and an improved magnetic anisotropy and, thus, is adapted for use as a raw material of a permanent magnet or a bond magnet of a high performance. The magnetic material is represented by a general formulaR.sub.X Co.sub.y Fe.sub.100-x-y (I)where R is at least one element selected from the rare earth elements, x and y are atomic percent individually defined as 4.ltoreq.x.ltoreq.20 and 0.01.ltoreq.y.ltoreq.70, and Co and Fe occupy 90 atomic percent or more in the principal phase of the compound, and the principal phase has a TbCu.sub.7 crystal structure.
摘要翻译： 公开了一种具有提高的饱和磁通密度和改善的磁各向异性的磁性材料，因此适合用作高性能永磁体或粘结磁铁的原料。 磁性材料由通式RXCoyFe100-xy（I）表示，其中R是选自稀土元素中的至少一种元素，x和y分别是原子百分比定义为4≤x≤20和0.01 < / = y <70，Co和Fe在化合物的主相中占据90原子％以上，主相具有TbCu 7晶体结构。
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