-
公开(公告)号：US06475302B2
公开(公告)日：2002-11-05
申请号：US09749803
申请日：2000-12-28
申请人： Wu Mei , Toshiya Sakamoto , Shinya Sakurada , Takao Sawa , Akihiko Tsutai , Akiko Saito , Masashi Sahashi
发明人： Wu Mei , Toshiya Sakamoto , Shinya Sakurada , Takao Sawa , Akihiko Tsutai , Akiko Saito , Masashi Sahashi
IPC分类号： H01F1055
CPC分类号： H01F1/058 , H01F1/0306 , H01F1/055 , H01F1/057
摘要： Disclosed is a permanent magnet which comprises an alloy containing a hard magnetic phase having a ThMn12 type tetragonal structure and a nonmagnetic phase. The alloy is represented by a general formula given below: [R1-a(M1)a][T1-b-c(M2)b(M3)c]dx&agr; where R is at least one rare earth element (including Y), Ml is at least one element selected from the group consisting of Zr and Hf, T is at least one element selected from the group consisting of Fe, Co and Ni, M2 is at least one element selected from the group consisting of Cu, Bi, Sn, Mg, In and Pb, M3 is at least one element selected from the group consisting of Al, Ga, Ge, Zn, B, P and S, X is at least one element selected from the group consisting of Si, Ti, V, Cr, Mn, Nb, Mo, Ta and W, and the atomic ratios of a, b, c, d and &agr; fall within the ranges of 0≦a≦0.6, 0.01≦b≦0.20, 0≦c≦0.05, 6≦d≦11, and 0.5≦&agr;≦2.0.
摘要翻译： 公开了一种永磁体，其包含含有ThMn 12型四方晶系的硬磁相和非磁性相的合金。 该合金由以下给出的通式表示：其中R是至少一种稀土元素（包括Y），M1是选自Zr和Hf中的至少一种元素，T是至少一种选自 由Fe，Co和Ni构成的组，M2是选自Cu，Bi，Sn，Mg，In和Pb中的至少一种元素，M3是选自Al，Ga，Ge中的至少一种元素 ，Zn，B，P和S中的至少一种，X是选自由Si，Ti，V，Cr，Mn，Nb，Mo，Ta和W组成的组中的至少一种元素，并且a，b，c， d和α落在0 <= a <= 0.6,0.01 <= b <= 0.20,0 <= c <= 0.05,6 <= d <= 11和0.5 <=α<2.0的范围内。
-
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。
-
公开(公告)号：US5482573A
公开(公告)日：1996-01-09
申请号：US961821
申请日：1992-10-16
申请人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai , Masashi Sahashi , Hideo Nagai , Tsutomu Yamashita
发明人： Shinya Sakurada , Takahiro Hirai , Akihiko Tsutai , Masashi Sahashi , Hideo Nagai , Tsutomu Yamashita
摘要： A magnetic material with an improved maximum energy product useful for high performance permanent magnet, bond magnet and other applications is disclosed. The magnetic material is expressed in a general formula R1.sub.x R2.sub.y M.sub.100-x-y where R1 is at least one element selected from the rare earth elements, R2 is at least one element selected from elements having an atomic radius in a range of 0.156 to 0.174 nm, M is at least one element selected from Fe and Co and x and y are atomic percent individually defined as x.gtoreq.2, y.gtoreq.0.01 and 4.ltoreq.x+y.ltoreq.20, and M occupying 90 atomic percent or more in the principal phase of the compound.
摘要翻译： 公开了一种具有用于高性能永磁体，粘结磁体和其他应用的改进的最大能量积的磁性材料。 磁性材料以通式R1xR2yM100-xy表示，其中R1是选自稀土元素中的至少一种元素，R2是选自原子半径在0.156至0.174nm范围内的元素中的至少一种元素，M是 选自Fe和Co中的至少一种元素和x和y分别定义为x> / = 2，y> / = 0.01和4
-
公开(公告)号：US5480495A
公开(公告)日：1996-01-02
申请号：US86379
申请日：1993-07-06
CPC分类号： H01F1/0593 , H01F1/055
摘要： Disclosed is a magnetic material which suppresses formation of impurity phase of Fe, Co or Fe-Co alloy, possesses a stable ThMn.sub.12 crystal structure as the principal phase, and is excellent in magnetic properties and lower in cost. Such magnetic material is expressed in a general formula:R1.sub.x R2.sub.y Si.sub.z M.sub.u T.sub.vwhere R1is at least one element selected from Zr and Hf, R2is at least one element selected from rare earth element, M is at least one element selected from C, N and P, T is at least one element selected from Fe and Co, x+y+z+u+v=100, x, y, z, u, v are atomic percent individually defined as 0.1.ltoreq.x.ltoreq.20, 2.ltoreq.y.ltoreq.20, 0.5.ltoreq.z.ltoreq.20, 0.ltoreq.u.ltoreq.20, v.gtoreq.50, and of which principal phase possesses a ThMn.sub.12 crystal structure.
摘要翻译： 公开了抑制Fe，Co或Fe-Co合金的杂质相的形成的磁性材料，其具有稳定的ThMn12晶体结构作为主相，磁性优异，成本低。 这种磁性材料以通式表示：R1xR2ySizMuTv其中R1为选自Zr和Hf中的至少一种元素，R2为选自稀土元素中的至少一种元素，M为选自C，N和P中的至少一种元素，T为 选自Fe和Co中的至少一种元素，x + y + z + u + v = 100，x，y，z，u，v是原子百分数，各自定义为0.1≤x≤20,2/ = y / = 50，其主相具有ThMn12晶体结构。
-
公开(公告)号：US5658396A
公开(公告)日：1997-08-19
申请号：US540173
申请日：1995-10-06
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.
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分别为原子百分比定义为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。
-
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
-
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。
-
公开(公告)号：US06546968B2
公开(公告)日：2003-04-15
申请号：US09933741
申请日：2001-08-22
IPC分类号： H01F108
CPC分类号： G11B21/025 , G11B5/4813 , H01F1/059 , Y10S977/775 , Y10S977/838 , Y10S977/896
摘要： A bond magnet comprises a molded body in which a mixture of flake of magnet material comprising rare earth element-iron-nitrogen as main component, TbCu7 type crystal phase as a principal phase and a thickness of less than 200 &mgr;m a binder is compression molded. A compression molded body constituting a bond magnet has a density of 6×103 kg/m3 or more. In the step of compression molding a mixture of magnet material and binder, pressure is applied a plurality of times, or pressure is applied while rotating a punch and die, or the binder is cured while applying pressure to obtain such a bond magnet with good reproducibility. Such a bond magnet has excellent magnetic properties and corrosion resistance.
-
公开(公告)号：US06317020B1
公开(公告)日：2001-11-13
申请号：US09573186
申请日：2000-05-19
IPC分类号： H01F702
CPC分类号： G11B21/025 , G11B5/4813 , H01F1/059 , Y10S977/775 , Y10S977/838 , Y10S977/896
摘要： A bond magnet comprises a molded body in which a mixture of flake of magnet material comprising rare earth element-iron-nitrogen as main component, TbCu7 type crystal phase as a principal phase and a thickness of less than 200 &mgr;m a binder is compression molded. A compression molded body constituting a bond magnet has a density of 6×103 kg/m3 or more. In the step of compression molding a mixture of magnet material and binder, pressure is applied a plurality of times, or pressure is applied while rotating a punch and die, or the binder is cured while applying pressure to obtain such a bond magnet with good reproducibility. Such a bond magnet has excellent magnetic properties and corrosion resistance.
摘要翻译： 粘结磁体包括成型体，其中以稀土元素 - 铁 - 氮为主要成分的磁体材料片，TbCu7型结晶相为主相，厚度小于200μm的粘结剂。 构成粘结磁体的压缩成型体的密度为6×10 3 kg / m 3以上。 在压缩成型磁体材料和粘合剂的混合物的步骤中，多次施加压力，或者在旋转冲头和模具的同时施加压力，或者在施加压力的同时固化粘合剂以获得具有良好重复性的粘结磁体 。 这种粘结磁体具有优异的磁性能和耐腐蚀性。
-
公开(公告)号：US20090019860A1
公开(公告)日：2009-01-22
申请号：US12234790
申请日：2008-09-22
IPC分类号： F25B21/00
CPC分类号： F25B21/00 , C22C38/005 , C22C45/02 , H01F1/015
摘要： A magnetic material for magnetic refrigeration has a composition represented by (R11-yR2y)xFe100-x (R1 is at least one of element selected from Sm and Er, R2 is at least one of element selected from Ce, Pr, Nd, Tb and Dy, and x and y are numerical values satisfying 4≦x≦20 atomic % and 0.05≦y≦0.95), and includes a Th2Zn17 crystal phase, a Th2Ni17 crystal phase, or a TbCu7 crystal phase as a main phase.
摘要翻译： 用于磁性制冷的磁性材料具有由（R11-yR2y）xFe100-x表示的组成（R1是选自Sm和Er中的至少一种元素，R2是选自Ce，Pr，Nd，Tb中的至少一种元素， Dy，x和y是满足4 <= x <= 20原子％和0.05 <= y <= 0.95的数值），并且包括Th2Zn17结晶相，Th2Ni17结晶相或TbCu7晶相作为主相 。
-
-
-
-
-
-
-
-
-
搜索结果
83 条记录 (耗时 0.082 秒)