JPH0627298B2 - Ytterbium-transition metal permanent magnet alloy - Google Patents
Ytterbium-transition metal permanent magnet alloyInfo
- Publication number
- JPH0627298B2 JPH0627298B2 JP59160410A JP16041084A JPH0627298B2 JP H0627298 B2 JPH0627298 B2 JP H0627298B2 JP 59160410 A JP59160410 A JP 59160410A JP 16041084 A JP16041084 A JP 16041084A JP H0627298 B2 JPH0627298 B2 JP H0627298B2
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- ytterbium
- transition metal
- magnet alloy
- metal permanent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 3
- 239000000956 alloy Substances 0.000 title claims description 3
- 229910052723 transition metal Inorganic materials 0.000 title 1
- 239000010941 cobalt Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 229910052735 hafnium Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 11
- 229910052761 rare earth metal Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 7
- 150000002910 rare earth metals Chemical class 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000008000 CHES buffer Substances 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- MKWKNSIESPFAQN-UHFFFAOYSA-N N-cyclohexyl-2-aminoethanesulfonic acid Chemical compound OS(=O)(=O)CCNC1CCCCC1 MKWKNSIESPFAQN-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- -1 rare earth cobalt compound Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、Ｙｂ−Ｃｏ−Ｆｅ−Ｍｎ−Ｍ（Ｍ；IVＢ族元
素）系永久磁石材料に関するもので、用途は一般の家庭
用電化製品からコンピューターの端末、プリンターに到
るまで、幅広い分野で使用可能なな極めて重要な電子部
品材料の１つである。The present invention relates to a Yb-Co-Fe-Mn-M (M; IVB group element) -based permanent magnet material, which is used for general household appliances. It is one of the extremely important electronic component materials that can be used in a wide range of fields from computer terminals to printers.
〔従来の技術〕 従来の軽希土類（Ｌａ〜Ｓｍ）コバルト系永久磁石の技
術的背景として、まずＲ（希土類）−Coダンベルベアに
おける各原子のスピンモーメントが磁気的平行結合す
る、いわゆる磁気構造上フェロ磁性体であるため高飽和
磁化が期待できること。また系の高い結晶磁気異方性ゆ
えの高保磁力も十分展開可能であること等から、高性能
永久磁石材料の最有力侯補として着目され、以来研究・
開発が進められ現在では、種々の軽希土類コバルト系磁
石が市場に出回るまでに到っている。[Prior Art] As a technical background of conventional light rare earth (La to Sm) cobalt-based permanent magnets, firstly, in a so-called magnetic structure, spin moments of respective atoms in an R (rare earth) -Co dumbbell bear are magnetically coupled in parallel. A high saturation magnetization can be expected because it is a ferromagnetic material. In addition, since it is possible to develop a high coercive force due to the high crystalline magnetic anisotropy of the system, it has attracted attention as the most powerful candidate for high-performance permanent magnet materials.
With the progress of development, various light rare-earth cobalt magnets are now on the market.
一方重希土類コバルト系は、含有率が少なくコスト高で
あり、また磁気構造上、高性能永久磁石を考える上で良
好とは言えないアンチフェロ構造を形成するので、大き
なモーメントが期待できず従って永久磁石材料としては
不向きとされていた。文献等も、重希土類では温度補償
・その他光学磁気材料に関するものが多いが、高性能永
久磁石材料として取り掲げたものに、例えばＭ．ＭＥＲ
ＣＨＥＳ，Ｗ．Ｅ．ＷＡＬＬＡＣＥ and Ｒ．Ｓ．Ｃ
ＲＡＩＧらのＪ，of ３Ｍ２４（１９８１）９７−１０
５等の文献を示すことができる。On the other hand, heavy rare earth cobalt-based alloys have a low content rate and are costly, and because they form an antiferro structure that is not good in terms of magnetic structure in terms of high-performance permanent magnets, a large moment cannot be expected and therefore permanent. It was considered unsuitable as a magnet material. Most of the literature and the like are related to temperature compensation and other optical magnetic materials for heavy rare earths, but the materials listed as high-performance permanent magnet materials are described in, for example, M.K. MER
CHES, W.A. E. WALLACE and R.W. S. C
RAIG et al., J, of 3M24 (1981) 97-10
5, etc. can be shown.
本発明は、重希土類コバルト化合物におけるアンチフェ
ロ構造による飽和磁化の低下をＲのモーメントが最も小
さいＲを選定することにより、極力これを抑さえ、高飽
和磁化を維持しつつ、同時に異方性磁界の向上を、その
効果が既に知られているＭｎ及びIVＢ族元素を添加・置
換することにより、従来不向きとされていた高性能重希
土類コバルト系磁石の領域も着手・開発することを目的
としている。何となれば希土類産業はバランス産業であ
り、従来の軽希土類のみならず、鉱石の分離・抽出過程
での副産物である場合が多い重希土類も利用すること
は、希土類資源の有効活用にもなるからである。The present invention suppresses the decrease in saturation magnetization due to the antiferro structure in a heavy rare earth cobalt compound by selecting R having the smallest R moment, thereby suppressing this as much as possible and maintaining a high saturation magnetization, and at the same time an anisotropic magnetic field. By adding and substituting Mn and Group IVB elements, the effects of which are already known, the objective is to start and develop the area of high-performance heavy rare earth-cobalt magnets, which was conventionally unsuitable. . What is important is that the rare earth industry is a balanced industry, and the use of not only conventional light rare earths but also heavy rare earths, which are often by-products in the ore separation and extraction process, also contributes to the effective use of rare earth resources. Is.
上記問題点を解決するため本発明は、Ｒ（希土類）とし
てイッテルビウムを選定し、Yb2Co17系をベースとし
て、Ｃｏの一部をＦｅ、Ｍｎ及びIVＢ族元素で置換し、
永久磁石化を図った。In order to solve the above problems, the present invention selects ytterbium as R (rare earth), replaces part of Co with Fe, Mn and IVB group elements based on the Yb 2 Co 17 system,
Aimed to make it a permanent magnet.
Ｒのモーメントが最も小さい元素として知られているＹ
ｂを選定することにより、アンチフェロ構造による飽和
磁化低下の影響を極力抑さえ、更に飽和磁化の高いＦｅ
でＣｏの一部を置換すれば極めて高い飽和磁化（１．６
０Ｔ）が達成可能となる。一方永久磁石化の必要条件と
して高保磁力であることも重要である。そこでＣｏの一
部を保磁力に寄与する効果のあるＭｎ及びIVＢ族元素で
置換し、永久磁石化が可能となった。Y, which is known to have the smallest R moment
By selecting b, the influence of the saturation magnetization decrease due to the antiferro structure can be suppressed as much as possible, and Fe with a higher saturation magnetization can be suppressed.
If a part of Co is replaced with, the extremely high saturation magnetization (1.6
0T) can be achieved. On the other hand, a high coercive force is also important as a necessary condition for making a permanent magnet. Therefore, a part of Co was replaced with Mn and an IVB group element that have an effect of contributing to the coercive force, and it became possible to form a permanent magnet.
以下に本発明の実施例を説明する。 Examples of the present invention will be described below.
次表に掲げた重量組成となる様、アーク溶解炉にてボタ
ン状インゴットを作製し原料合金試料を準備する。A raw material alloy sample is prepared by making button-shaped ingots in an arc melting furnace so that the weight composition shown in the following table is obtained.
得られた上表No.１〜２５の各インゴットを、ブレーキ
クラッシャーで１mm角程度まで粉砕し、更にブラウンミ
ルで約５０〜１００μｍまで粉砕する。最終的にはボー
ルミルにておよそ３〜５μｍ程度にまで更に粉砕する。
得られた磁性粉末は異方性を付与するため、磁界中プレ
スにて約１万エルステッド、２トン／cm2の条件で圧縮
成型する。得られたグリーンは、ボールミル粉砕時に使
用した有機溶媒の脱ガス処理を行なった後に、約１００
０〜１１５０℃で加圧Ａｒガス中にて、１時間焼結され
冷却室にて急冷する。更に保磁力改善のための熱処理と
して６００℃〜８００℃で２時間、時効処理を施す。Ｂ
ｒ（残留磁束密度）やＩＨｃ（保磁力）等の磁気特性測
定は、４πＩ−Ｈ水平同軸補償コイルを用い、減磁曲線
を求めそこから各特性値を測定した。異方性磁界は十分
配向させた粉末試料を用い、トルクメーターで測定し
た。 Each of the obtained ingots of Nos. 1 to 25 in the above table is crushed to about 1 mm square with a brake crusher, and further crushed to about 50 to 100 μm with a brown mill. Finally, it is further pulverized by a ball mill to a size of about 3 to 5 μm.
In order to impart anisotropy, the obtained magnetic powder is compression-molded in a magnetic field press under the conditions of about 10,000 Oersted and 2 ton / cm 2 . The obtained green is about 100 after degassing the organic solvent used during ball milling.
Sintered in pressurized Ar gas at 0 to 1150 ° C. for 1 hour and rapidly cooled in a cooling chamber. Further, as heat treatment for improving coercive force, aging treatment is performed at 600 to 800 ° C. for 2 hours. B
For measurement of magnetic characteristics such as r (residual magnetic flux density) and I Hc (coercive force), a 4πI-H horizontal coaxial compensation coil was used, and a demagnetization curve was obtained to measure each characteristic value. The anisotropic magnetic field was measured with a torque meter using a powder sample that was sufficiently oriented.
以下に結果を示す。The results are shown below.
第１図はＹｂ２（Ｃｏ．Ｆｅ．Ｍｎ．Ｚｒ）17系のＹｂ
含有量によるＢｒ及びＩＨｃへの影響を示す。Ｙｂ含有
量の増加と共にＢｒは減少しＩＨｃが増大することが判
る。FIG. 1 shows Yb 2 (Co.Fe.Mn.Zr) 17 system Yb
The effect of the content on Br and I Hc is shown. It can be seen that Br decreases and I Hc increases as the Yb content increases.
第２図には、ＦｅのＢｒ及びＩＨｃへの影響を示す。Ｆ
ｅ濃度と共にＢｒは増加し（およびＦｅ濃度が２０ｗｔ
％の範囲）、最大１．６０Ｔにも達する。一方ＩＨｃは
緩慢に減少しおよそＦｅ濃度が１８ｗｔ％に達すると急
激に低下する。FIG. 2 shows the effect of Fe on Br and I Hc. F
Br increases with e concentration (and Fe concentration is 20 wt.
% Range), reaching a maximum of 1.60 T. On the other hand, I Hc decreases slowly and decreases sharply when the Fe concentration reaches 18 wt%.
第３図にはＭｎ及びIVＢ属元素の異方性磁界への影響を
示す。これら元素の濃度と共にＨＡ（異方性磁界が上昇
することが判る。特にＺｒの影響が著しい。FIG. 3 shows the influence of Mn and IVB group elements on the anisotropic magnetic field. It is understood that H A (anisotropic magnetic field increases with the concentration of these elements. Especially, the influence of Zr is remarkable.
本発明は、以上説明したように、ＲとてＹｂを選定する
ことによりアンチフェロ構造による飽和磁化の低下を抑
え、かつＭｎ及びIVＢ属元素を添加・置換により異方性
磁界を向上せしめ、永久磁石化する効果がある。As described above, the present invention suppresses the decrease in saturation magnetization due to the antiferro structure by selecting Yb as R, and improves the anisotropic magnetic field by adding and substituting Mn and IVB group elements, It has the effect of magnetizing.
第１図はＹｂ含有量によるＢｒ及びＩＨｃへの影響図、
第２図はＦｅ含有量によるＢｒ及びＩＨｃへの影響図、
第３図にはＭｎ及びIVＢ属元素におけるＨＡへの影響図
を示す。FIG. 1 is a diagram showing the influence of Yb content on Br and I Hc.
FIG. 2 is a graph showing the influence of Fe content on Br and I Hc.
FIG. 3 shows the effect of Mn and IVB elements on HA .
Claims (1)
％、鉄（Ｆｅ）が１０〜２０ｗｔ％、マンガン（Ｍｎ）
が４〜９ｗｔ％、及びIVＢ族元素（Ｔｉ，Ｚｒ，Ｈｆ）
のいずれか一種あるいは二種以上の組合わせで計１〜３
ｗｔ％、残コバルト（Ｃｏ） 上記組成で構成されることを特徴とする永久磁石合金。1. Ytterbium (Yb) 25 to 30 wt.
%, Iron (Fe) 10 to 20 wt%, manganese (Mn)
Is 4-9 wt%, and Group IVB elements (Ti, Zr, Hf)
1 to 3 in any combination of 1 or 2 or more
wt%, residual cobalt (Co) A permanent magnet alloy having the above composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59160410A JPH0627298B2 (en) | 1984-07-30 | 1984-07-30 | Ytterbium-transition metal permanent magnet alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59160410A JPH0627298B2 (en) | 1984-07-30 | 1984-07-30 | Ytterbium-transition metal permanent magnet alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6137940A JPS6137940A (en) | 1986-02-22 |
| JPH0627298B2 true JPH0627298B2 (en) | 1994-04-13 |
Family
ID=15714331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59160410A Expired - Lifetime JPH0627298B2 (en) | 1984-07-30 | 1984-07-30 | Ytterbium-transition metal permanent magnet alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627298B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63250429A (en) * | 1987-04-06 | 1988-10-18 | Seiko Instr & Electronics Ltd | Production of ytterbium-transition metal alloy |
| CN1832951B (en) * | 2003-06-09 | 2011-08-03 | 大八化学工业株式会社 | Organophosphorus compound having phosphate-phosphonate bond, flame-retardant fiber and composition using same |
-
1984
- 1984-07-30 JP JP59160410A patent/JPH0627298B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6137940A (en) | 1986-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |