JP2008091873A5 - - Google Patents

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JP2008091873A5
JP2008091873A5 JP2007200323A JP2007200323A JP2008091873A5 JP 2008091873 A5 JP2008091873 A5 JP 2008091873A5 JP 2007200323 A JP2007200323 A JP 2007200323A JP 2007200323 A JP2007200323 A JP 2007200323A JP 2008091873 A5 JP2008091873 A5 JP 2008091873A5
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Prior art keywords
iron
magnetic powder
rare earth
atomic
nitrogen based
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JP2007200323A
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Japanese (ja)
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JP4737161B2 (en
JP2008091873A (en
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Claims (5)

ThZn17型結晶構造の希土類−鉄−窒素系磁性粉末であって、
前記希土類−鉄−窒素系磁性粉末は、一般式:RFe(100−v−w−x)で表され、RはYを含むランタノイド元素のうち少なくとも一種、MはZr又はTiであり、
v、wはそれぞれ原子百分率で、
3≦v≦30
5≦w≦15
MがZrの場合、xは原子百分率で、
0<x≦0.5
MがTiの場合、xは原子百分率で、
0<x≦1.5
であることを特徴とする希土類−鉄−窒素系磁性粉末。
A rare earth-iron-nitrogen based magnetic powder having a Th 2 Zn 17 type crystal structure,
The rare earth - iron - nitrogen based magnetic powder has the general formula: represented by R v Fe (100-v- w-x) N w M x, of at least one of the lanthanoid element R including Y, M is Zr or Ti,
v and w are atomic percentages respectively.
3 ≦ v ≦ 30
5 ≦ w ≦ 15
When M is Zr, x is an atomic percentage,
0 <x ≦ 0.5
When M is Ti, x is atomic percentage,
0 <x ≦ 1.5
A rare earth-iron-nitrogen based magnetic powder characterized by
前記Mは、前記磁性粉末からなる粒子の内部に均一に含有されていることを特徴とする請求項1に記載の希土類−鉄−窒素系磁性粉末。   2. The rare earth-iron-nitrogen based magnetic powder according to claim 1, wherein the M is uniformly contained in particles made of the magnetic powder. 前記MがZrの場合、磁性粉末中に少なくともZrOが含まれ、前記MがTiの場合、磁性粉末中に少なくともTiOが含まれることを特徴とする請求項1または2に記載の希土類−鉄−窒素系磁性粉末。 The rare earth element according to claim 1 or 2, wherein when M is Zr, at least ZrO 2 is contained in the magnetic powder, and when M is Ti, at least TiO 2 is contained in the magnetic powder. Iron-nitrogen magnetic powder. 前記MがZrの場合、全成分に対するZrの含有原子比率は、0.002原子%以上0.1原子%以下であり、前記MがTiの場合、全成分に対するTiの含有原子比率は、0.1原子%以上1.0原子%以下である請求項1から3のいずれか一項に記載の希土類−鉄−窒素系磁性粉末。   When M is Zr, the atomic ratio of Zr to all components is 0.002 atomic% to 0.1 atomic%, and when M is Ti, the atomic ratio of Ti to all components is 0. The rare earth-iron-nitrogen based magnetic powder according to any one of claims 1 to 3, wherein the content is from 1 atomic% to 1.0 atomic%. 希土類−鉄−窒素系磁性粉末の作製方法であって、
Yを含むランタノイド元素のうちの少なくとも一種の化合物と、鉄の化合物と、Zr化合物又はTi化合物とを溶解した溶液を作製する工程と、
前記溶液に沈殿剤を添加して不溶性塩を生成する工程と、
前記不溶性塩を焼成し希土類元素−鉄−Zrの複合酸化物粉末又は希土類元素−鉄−Tiの複合酸化物粉末を得る工程と、
前記複後酸化物を金属Caにて還元拡散反応を行う工程と、
を有することを特徴とする希土類−鉄−窒素系磁性粉末の作製方法。
A method for producing a rare earth-iron-nitrogen based magnetic powder,
Producing a solution in which at least one compound of lanthanoid elements including Y, an iron compound, and a Zr compound or a Ti compound is dissolved;
Adding a precipitant to the solution to produce an insoluble salt;
Firing the insoluble salt to obtain a rare earth element-iron-Zr complex oxide powder or a rare earth element-iron-Ti complex oxide powder;
Performing a reduction diffusion reaction of the double post-oxide with metal Ca;
A method for producing a rare earth-iron-nitrogen based magnetic powder characterized by comprising:
JP2007200323A 2006-09-08 2007-08-01 Rare earth-iron-nitrogen based magnetic powder and method for producing the same Active JP4737161B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007200323A JP4737161B2 (en) 2006-09-08 2007-08-01 Rare earth-iron-nitrogen based magnetic powder and method for producing the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006243585 2006-09-08
JP2006243585 2006-09-08
JP2007200323A JP4737161B2 (en) 2006-09-08 2007-08-01 Rare earth-iron-nitrogen based magnetic powder and method for producing the same

Publications (3)

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JP2008091873A JP2008091873A (en) 2008-04-17
JP2008091873A5 true JP2008091873A5 (en) 2010-08-19
JP4737161B2 JP4737161B2 (en) 2011-07-27

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615465B (en) * 2008-05-30 2012-10-17 株式会社日立制作所 Soft magnetic powder for compact powder body and compact powder body using the same
JP5218869B2 (en) * 2011-05-24 2013-06-26 住友電気工業株式会社 Rare earth-iron-nitrogen alloy material, method for producing rare earth-iron-nitrogen alloy material, rare earth-iron alloy material, and method for producing rare earth-iron alloy material
JP5874534B2 (en) * 2012-05-23 2016-03-02 日亜化学工業株式会社 Rare earth-iron-nitrogen based magnetic material and method for producing the same
JP6244675B2 (en) * 2013-06-05 2017-12-13 日亜化学工業株式会社 Method for producing magnetic particles
JP6303366B2 (en) * 2013-09-28 2018-04-04 日亜化学工業株式会社 Magnetic particle manufacturing method and magnetic particle
JP2015113481A (en) * 2013-12-10 2015-06-22 住友金属鉱山株式会社 Manufacturing method of rare earth-transition metal-nitrogen alloy powder, rare earth-transition metal-nitrogen alloy powder obtained by the method, bond magnet composition using the same, and bond magnet
JP6332259B2 (en) * 2015-12-24 2018-05-30 日亜化学工業株式会社 Anisotropic magnetic powder and method for producing the same
JP6447768B2 (en) 2017-05-17 2019-01-09 日亜化学工業株式会社 Secondary particle for anisotropic magnetic powder and method for producing anisotropic magnetic powder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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JP3504735B2 (en) * 1994-07-25 2004-03-08 住友特殊金属株式会社 Method for producing RTMN based anisotropic bonded magnet
JP3826537B2 (en) * 1998-01-28 2006-09-27 日亜化学工業株式会社 Rare earth bonded magnet and composition for rare earth bonded magnet
JP4899254B2 (en) * 2000-05-29 2012-03-21 大同特殊鋼株式会社 Isotropic powder magnet material, manufacturing method thereof, and bonded magnet
JP2002184619A (en) * 2000-12-12 2002-06-28 Hitachi Metals Ltd Magnet roll

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