JPS62163303A - Permanent magnet - Google Patents
Permanent magnetInfo
- Publication number
- JPS62163303A JPS62163303A JP61005813A JP581386A JPS62163303A JP S62163303 A JPS62163303 A JP S62163303A JP 61005813 A JP61005813 A JP 61005813A JP 581386 A JP581386 A JP 581386A JP S62163303 A JPS62163303 A JP S62163303A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- rare earth
- max
- magnetic characteristics
- less
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、希土類合端(以下Rと記す)とCoの金属間
化合物、特にR+Cos系永久磁石に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an intermetallic compound of a rare earth joint (hereinafter referred to as R) and Co, particularly to an R+Cos permanent magnet.
R+Coa系永久磁石の磁気特性の向上方法として各種
方法(例えは特公昭56−14731号、同56−14
736号、および同56−42122号の分轄参照)が
提案されている。Various methods are used to improve the magnetic properties of R+Coa permanent magnets (for example, Japanese Patent Publication No. 56-14731, No. 56-14)
No. 736 and No. 56-42122) have been proposed.
〔発明が解決シ1.ようとする間句点〕しかし、これら
従来の方法でのR+Cos系永久磁石の磁気特性は低く
、世の中の要求には対応し難い問題点を有する。[The invention solves the problem.1. However, the magnetic properties of the R+Cos permanent magnets obtained by these conventional methods are low, and there is a problem that it is difficult to meet the demands of the world.
本発明は、上記従来技術の間四点を解消し、磁気特性の
優れた永久磁石を提供するものである。The present invention solves the four problems of the prior art described above and provides a permanent magnet with excellent magnetic properties.
〔間か8点を解決するだめの手段〕
本発明の永久磁石は、R(Cot−XBX )A (こ
こでRは、Ce * Pr r Nd + Smなどの
希土類元素の内、少くとも1種、0.001≦X≦0.
15.3≦A≦6)の組成からなり、残留磁束密度(B
r)、保磁力(Ha)、および最大エネルギーM ((
BH)MAX )の優れた磁気特性を有すことを特徴と
するものである。[Means to solve the problem 8] The permanent magnet of the present invention is R(Cot-XBX)A (here, R is at least one rare earth element such as Ce*PrNd+Sm). , 0.001≦X≦0.
15.3≦A≦6), and the residual magnetic flux density (B
r), coercive force (Ha), and maximum energy M ((
It is characterized by having excellent magnetic properties of BH)MAX).
すなわち、B(ポロン)を添加することにより本発明を
見出すに至ったのである。本発明での成分限定の理由を
述べると、下記の辿りである。すなわちB量(X)が、
0.0C11未満および0.15を越メると、磁気特性
の改善の効果が少なく、モル比Aが3未満では、磁気特
性が低くなり、6を越えるとBrは高くなるものの、H
cおよび(BH)MAXが低下することによる。That is, the present invention was discovered by adding B (poron). The reasons for limiting the ingredients in the present invention are as follows. That is, the amount of B (X) is
If the molar ratio A is less than 0.0C11 or more than 0.15, the effect of improving magnetic properties will be small; if the molar ratio A is less than 3, the magnetic properties will be low; if it exceeds 6, Br will be high, but H
This is due to a decrease in c and (BH)MAX.
実施例1
Sm (Co l−x Bx ) 4.8 (但し、X
= O、C1,005。Example 1 Sm (Col-x Bx) 4.8 (However, X
= O, C1,005.
0.01 、0.1 、0.18 )なる合金をアーク
溶解にて作成した。鞄成例を第1表に示す。得られたイ
ンゴットを粉砕し、平均粒径4.5μmの微粉とし、磁
場強度8KOe、成形圧4 t/F!にてプレス成形し
、成形体を得た○成形体を)hガス雰囲気中にて、11
10℃XIHrの焼結を行い、さらにArガス雰囲気中
にて、950℃X 1 Hrの保持後、800℃tで、
1℃/分の速度で、徐冷し、800℃からオイル中に急
冷処理を施し、磁気特性の評価に供した。結果を第1表
に示す。0.01, 0.1, 0.18) were prepared by arc melting. Examples of bag construction are shown in Table 1. The obtained ingot was crushed into fine powder with an average particle size of 4.5 μm, magnetic field strength was 8 KOe, and molding pressure was 4 t/F! Press molding was performed to obtain a molded product (○ molded product) in a gas atmosphere of 11
Sintering was performed at 10°C for 1 hour, and then held at 950°C for 1 hour in an Ar gas atmosphere, and then at 800°C for 1 hour.
It was slowly cooled at a rate of 1° C./min, and then quenched from 800° C. in oil to evaluate its magnetic properties. The results are shown in Table 1.
第 1 表
実施例(A2,3.4)に見る如く、B添加により、磁
気特性の向上が認められる。しかし、B景が多すぎると
馬5のp口<、特性が低下する。As seen in Example (A2, 3.4) in Table 1, the magnetic properties were improved by adding B. However, if there are too many B scenes, the p mouth characteristics of horse 5 will deteriorate.
実施例2゜
(Pro、ss Ndo、ox Smo、+2) (C
o I−x Bx ) 4.8なる合金(ただし、x=
o 、 o、os )について、焼結以外を実施例1
と同様に行い、その結果を第2表にA6゜7として示す
〇
ただし、焼結はArガス雰囲気中で、1080℃×1
Hrとした。Example 2゜(Pro, ss Ndo, ox Smo, +2) (C
o I-x Bx ) 4.8 alloy (where x=
o, o, os), except for sintering Example 1
The results are shown in Table 2 as A6゜7〇However, sintering was performed at 1080℃ x 1 in an Ar gas atmosphere.
It was set as Hr.
実施例3゜
(Ce 00I113mo、ss ) (Co 1−x
Bx ) 4.1+ なる合金(ただし、X= 0
、 o、os >にて、実施例2と同様に行った結果
を第2表中、扁8,9として示す。Example 3゜(Ce 00I113mo, ss) (Co 1-x
Bx ) 4.1+ alloy (where X= 0
, o, os>, the results were carried out in the same manner as in Example 2, and are shown as flats 8 and 9 in Table 2.
第 2 表
実施例4゜
SmComC余人よびSm (Coo、9s Bo、o
s )A合金における異なるA値(A=2.8 、3.
3 、4.8 、5.7および6.3)の試料(A 1
0〜19 )について、焼結をArカス雰吐気中にて、
1140℃X1Hrとした以外実施例1と同様に行った
結果を第3表に示す。Table 2 Example 4゜SmComC and Sm (Coo, 9s Bo, o
s) Different A values in A alloys (A=2.8, 3.
3, 4.8, 5.7 and 6.3) samples (A 1
0 to 19), sintering was performed in an Ar gas atmosphere,
Table 3 shows the results of the same procedure as in Example 1 except that the temperature was 1140° C. for 1 hour.
第3表から、B添加による本発明の永久磁石が優れた磁
気特性を有すことが分る。From Table 3, it can be seen that the permanent magnet of the present invention with the addition of B has excellent magnetic properties.
第 3 表 〔発明の効果〕Table 3 〔Effect of the invention〕
Claims (1)
、Pr、Nd、Smなどの希土類元素の内、少くとも1
種、0.001≦X≦0.15、3≦A≦6)で示され
る組成からなることを特徴とする永久磁石。R(Co_1_−_XB_X)_A (where R is Ce
, at least one of rare earth elements such as Pr, Nd, and Sm.
1. A permanent magnet characterized by having a composition represented by the following formulas: species, 0.001≦X≦0.15, 3≦A≦6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61005813A JPS62163303A (en) | 1986-01-14 | 1986-01-14 | Permanent magnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61005813A JPS62163303A (en) | 1986-01-14 | 1986-01-14 | Permanent magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62163303A true JPS62163303A (en) | 1987-07-20 |
Family
ID=11621519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61005813A Pending JPS62163303A (en) | 1986-01-14 | 1986-01-14 | Permanent magnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62163303A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008251993A (en) * | 2007-03-30 | 2008-10-16 | Tdk Corp | Magnetic material and magnet using the same |
JP2008270796A (en) * | 2007-03-29 | 2008-11-06 | Tdk Corp | Magnetic material and magnet using the same |
-
1986
- 1986-01-14 JP JP61005813A patent/JPS62163303A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008270796A (en) * | 2007-03-29 | 2008-11-06 | Tdk Corp | Magnetic material and magnet using the same |
JP2008251993A (en) * | 2007-03-30 | 2008-10-16 | Tdk Corp | Magnetic material and magnet using the same |
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