JPH0255496B2 - - Google Patents
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- Publication number
- JPH0255496B2 JPH0255496B2 JP54121659A JP12165979A JPH0255496B2 JP H0255496 B2 JPH0255496 B2 JP H0255496B2 JP 54121659 A JP54121659 A JP 54121659A JP 12165979 A JP12165979 A JP 12165979A JP H0255496 B2 JPH0255496 B2 JP H0255496B2
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- Japan
- Prior art keywords
- amorphous
- magnetic
- alloy
- materials
- present
- 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.)
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Description
【発明の詳細な説明】
本発明は非晶質磁性材料に関するものである。
従来よく知られている非晶質磁性材料は磁性金属
原子Ｍといわゆるメタロイド原子Ｘとが合金して
いるMaXbの形の組成をしたものが大部分であつ
た。すなわちたとえばFe80B20、（Co0.94Fe0.
6）19Si10B11あるいはFe80P13C7などである。これ
らの合金系においてはメタル原子とメタロイド原
子の原子の大きさが大巾に異ることが大きな特長
でありその故に合金溶湯を急冷して、比較的容易
に非晶質化できるものと言われている。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to amorphous magnetic materials.
Most of the conventionally well-known amorphous magnetic materials have a composition of the form M a X b , in which magnetic metal atoms M and so-called metalloid atoms X are alloyed. For example, Fe 80 B 20 , (Co 0 . 94 Fe 0 .
6 ) 19 Si 10 B 11 or Fe 80 P 13 C 7 . A major feature of these alloy systems is that the atomic sizes of the metal atoms and metalloid atoms differ widely, and for this reason, it is said that the molten alloy can be rapidly cooled to become amorphous relatively easily. ing.
しかるにこれら従来型非晶質材料においては、
構成原子の大きさおよび原子量が比較的大巾に異
るためか磁気特性の経時変化が著しく大きいとい
う重大な欠点をもつている。すなわち、Coを主
体とするCoFeSiB系高透磁率非晶質材の場合を
例にとると20KHzにおける熱処理直後の実効透磁
率μe＝16000は、150℃にて100時間保持したあと
では約50％劣化してμe＝8000になつてしまうと
いう程のもので、このままでは、たとえば磁気ヘ
ツドのコアとして使うことは全く不可能である。 However, in these conventional amorphous materials,
It has a serious drawback in that its magnetic properties change significantly over time, probably because the sizes and atomic weights of its constituent atoms vary widely. In other words, taking the case of a CoFeSiB-based high permeability amorphous material mainly composed of Co, the effective magnetic permeability μe = 16000 immediately after heat treatment at 20KHz deteriorates by approximately 50% after being held at 150℃ for 100 hours. As it is, it is completely impossible to use it as the core of a magnetic head, for example.
ところで、特願昭54−108078号（特開昭56−
33453号）は、原子比率でジルコニウム８〜14％、
ニツケル、コバルトの何れか少なくとも１種７〜
38％を含み、残部実質的に鉄より成る磁束密度が
高く磁歪の小さな鉄基非晶合金を開示している。 By the way, Japanese Patent Application No. 108078 (1982)
No. 33453) has an atomic ratio of 8 to 14% zirconium,
At least one of nickel or cobalt 7~
The disclosure discloses an iron-based amorphous alloy with high magnetic flux density and low magnetostriction, the remainder being substantially iron.
本発明は従来材の欠点を除去した全く新しい非
晶質磁性材料を提供するものである。 The present invention provides a completely new amorphous magnetic material that eliminates the drawbacks of conventional materials.
すなわち、本発明の非晶質磁性材料は、組成式
（原子比率で表示）：
組成式（原子比率で表示）：
（FeI-xCox）100-aZra
（ただし、０≦ｘ≦１、２≦ａ≦30（ただし、
７≦ｘ（100−ａ）≦38かつ８≦ａ≦14の場合を除
く））で表されることを特徴とする。 That is, the amorphous magnetic material of the present invention has the following compositional formula (expressed in atomic ratio): Compositional formula (expressed in atomic ratio): (Fe Ix Co x ) 100-a Zra (However, 0≦x≦1, 2≦a≦30 (however,
7≦x(100-a)≦38 and 8≦a≦14)).
上記の組成範囲は全く新規なものであり、従来
の欠点のない非晶質磁性材料を得ることができ
る。 The above composition range is completely new and makes it possible to obtain an amorphous magnetic material without the drawbacks of the conventional ones.
ここに磁性原子としてのFe，Coは80〜95％、
Zr20〜５％が磁束密度の点から好ましいが、安
定な磁性材料としての特長はFeCo70〜98％の
Zr30〜２％の範囲でこれを保持しており、この
範囲で実用可能である。 Here, Fe and Co as magnetic atoms are 80 to 95%,
Zr20~5% is preferable from the point of view of magnetic flux density, but FeCo70~98% has the advantage of being a stable magnetic material.
This is maintained in the range of Zr30 to 2%, and it is practical within this range.
但し、Fe又はCoの量が70％を割ると磁束密度
が低くなりすぎること、またZrの量が２％以下
になると非晶質化しにくくなることよりして実用
的でなくなる。なお特願昭54−108078号との関係
で、Coが７〜38％かつZrが８〜14％の場合を除
く。従つて、下記の場合は除外される。 However, if the amount of Fe or Co is less than 70%, the magnetic flux density becomes too low, and if the amount of Zr is less than 2%, it becomes difficult to become amorphous, making it impractical. In relation to Japanese Patent Application No. 108078/1984, cases where Co is 7 to 38% and Zr is 8 to 14% are excluded. Therefore, the following cases are excluded.
７≦ｘ（100−ａ）≦38 ８≦ａ≦14 以下本発明に基づく実施例を示す。 7≦x(100-a)≦38 8≦a≦14 Examples based on the present invention will be shown below.
実施例 １
Co90.5Zr9.5なる組成をもつ非晶質リボンを、石
英ノズルを用いてAr中にてロール急冷方式で試
作し、その磁性を調べた所、B10＝10.5KG，Hc
＝0.2Oeであつた。これを150℃にて100時間保持
したのち再び磁気特性を測定した所、その劣化量
はわずか２％以下であり、従来型非晶質磁性材料
に比して著しく安定なことが判明した。Example 1 An amorphous ribbon with a composition of Co 90.5 Zr 9.5 was prototyped by a roll quenching method in Ar using a quartz nozzle, and its magnetism was investigated, and it was found that B 10 = 10.5KG, Hc
= 0.2 Oe. After holding this material at 150°C for 100 hours, we measured its magnetic properties again and found that the amount of deterioration was only 2% or less, making it significantly more stable than conventional amorphous magnetic materials.
実施例 ２
同様にして（Fe0.5Co0.5）75Z25、Co93Zr7なる組
成をもつ非晶質リボンを同様にして減圧下におい
て作成し150℃100時間時効によるその磁気特性の
劣化を調べた。その結果（Fe0.5Co0.5）75Zr25材に
おいて約３％、Co93Zrの材において約1.5％の劣
化を生じたに過ぎなかつた。Example 2 An amorphous ribbon having the composition (Fe 0.5 Co 0.5 ) 75 Z 25 , Co 93 Zr 7 was similarly prepared under reduced pressure, and its magnetic properties were evaluated by aging at 150°C for 100 hours . We investigated the deterioration of As a result , only about 3% deterioration occurred in the (Fe 0.5 Co 0.5 ) 75 Zr 25 material and about 1.5% in the Co 93 Zr material.
すなわち以上の実施例の結果からも明らかなよ
うに本発明合金は従来材非晶質材料に比して著し
く優れた安定性をもつことが実証される。 That is, as is clear from the results of the above examples, it is demonstrated that the alloy of the present invention has significantly superior stability compared to conventional amorphous materials.
なお、発明者らの研究によれば、本発明合金は
単に安定性に優れているのみならず、従来非晶質
材料に比してつくりやすく磁束密度も出やすく耐
食性耐摩耗性にも優れておりキユリー点も比較的
高く磁歪もそれぞれの用途に応じて適切に選べる
等、オーデイオ用、VTR用およびコンピユータ
ー用等の磁気ヘツド材およびその他の電磁変換器
用として著しく優れた材料であることが判明して
おり工業上価値の大きなものである。 According to research conducted by the inventors, the alloy of the present invention not only has excellent stability, but also is easier to manufacture than conventional amorphous materials, has a higher magnetic flux density, and has excellent corrosion resistance and wear resistance. It has been found to be an extremely excellent material for magnetic head materials for audio, VTR, and computer applications, as well as for other electromagnetic transducers, as it has a relatively high Kurie point and magnetostriction that can be selected appropriately according to each application. It is of great industrial value.
本発明において、Zrは非磁性元素であるので、
8at％より少ない場合は特に高い磁束密度の合金
が得られる。一方、合金にZrを14at％より多く、
30at％以下含有させれば、合金の非晶質化が容易
である。 In the present invention, since Zr is a non-magnetic element,
When it is less than 8at%, an alloy with particularly high magnetic flux density can be obtained. On the other hand, if the alloy contains more than 14at% of Zr,
If the content is 30 at% or less, the alloy can be easily made amorphous.
Claims (1)
７≦ｘ（100−ａ）≦38かつ８≦ａ≦14の場合を除
く））で表されることを特徴とする非晶質磁性材
料。[Claims] 1. Composition formula (expressed in atomic ratio): (Fe Ix Co x ) 100-a Zr a (where 0≦x≦1, 2≦a≦30 (however,
7≦x(100-a)≦38 and 8≦a≦14)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12165979A JPS5644753A (en) | 1979-09-21 | 1979-09-21 | Amorphous magnetic alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12165979A JPS5644753A (en) | 1979-09-21 | 1979-09-21 | Amorphous magnetic alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5644753A JPS5644753A (en) | 1981-04-24 |
| JPH0255496B2 true JPH0255496B2 (en) | 1990-11-27 |
Family
ID=14816715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12165979A Granted JPS5644753A (en) | 1979-09-21 | 1979-09-21 | Amorphous magnetic alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5644753A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633453A (en) * | 1979-08-27 | 1981-04-03 | Takeshi Masumoto | Iron-base amorphous alloy having high magnetic flux density and small magnetostriction |
-
1979
- 1979-09-21 JP JP12165979A patent/JPS5644753A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5644753A (en) | 1981-04-24 |
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