JPS58185747A - Amorphous iron alloy for magnetic head - Google Patents
Amorphous iron alloy for magnetic headInfo
- Publication number
- JPS58185747A JPS58185747A JP6550482A JP6550482A JPS58185747A JP S58185747 A JPS58185747 A JP S58185747A JP 6550482 A JP6550482 A JP 6550482A JP 6550482 A JP6550482 A JP 6550482A JP S58185747 A JPS58185747 A JP S58185747A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- magnetostriction
- amorphous alloy
- amorphous
- flux density
- 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.)
- Granted
Links
Landscapes
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、新規な磁気ヘッド用非晶質合金に関し、史に
詳しくは、Ｉ！ｌｉ磁束密度及び低磁歪である、磁気ヘ
ッド用鉄基非晶質合金に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a novel amorphous alloy for magnetic heads. The present invention relates to an iron-based amorphous alloy for magnetic heads that has low magnetic flux density and low magnetostriction.
従来、磁気ヘッドに用いられる＾ａａ率材料としては、
結晶構造を有するＦ＠−Ｎｉ合金（パーマロイ）、Ｆ＠
−８ｔ−Ａ１合金（センダスト）等があった。Conventionally, the ^aa rate materials used in magnetic heads are:
F@-Ni alloy (permalloy) with crystal structure, F@
-8t-A1 alloy (Sendust), etc.
しかし、Ｆ・−Ｈｔ金合金、透磁率は高いが、耐摩耗性
に劣り、Ｆ・−８ｉ−Ａ１合金は、耐摩耗性は優れるが
、脆弱であるため塑性加工が非常に困難であるという欠
点を有していた。However, the F-Ht gold alloy has high magnetic permeability but poor wear resistance, while the F-8i-A1 alloy has excellent wear resistance but is brittle and is extremely difficult to plastically work. It had drawbacks.
ところが、最近になり、結晶構造を持たない非晶質合金
において、優れた磁気的及び機械的特性が見出された。However, recently, excellent magnetic and mechanical properties have been discovered in amorphous alloys that do not have a crystalline structure.
％に、ＣＯとＦｏｏｍ子比が９４：６付近のコバルト基
非晶質合金は、磁歪が零付近になり、透磁率が高いため
、磁気ヘッド用材料として注目されている。A cobalt-based amorphous alloy with a CO to FOO ratio of about 94:6 has magnetostriction near zero and high magnetic permeability, so it is attracting attention as a material for magnetic heads.
しかし、上記コバルト基非晶質合金は、一般に、飽和磁
束密度が９ＫＧ以下と低いものであった、９ＫＧ以上の
コバルト基非晶質合金を作製することは可能であるが、
この場合ＫＦｉ、キュリ一点（Ｔｃ ）が結晶化温度（
ＴＩ）よりも高くなり、その結果、高透磁率とするため
Ｋは、回転磁場中での特殊な熱処理等、特殊な処理を要
するという煩雑さがあった。また、コバルト基非晶質合
金は、コバルトを主体とするため、高価であるという欠
点もあった。However, the above-mentioned cobalt-based amorphous alloys generally have a low saturation magnetic flux density of 9 KG or less. Although it is possible to produce a cobalt-based amorphous alloy with a saturation magnetic flux density of 9 KG or more,
In this case, KFi, Curie point (Tc) is the crystallization temperature (
As a result, in order to obtain high magnetic permeability, K requires special treatment such as special heat treatment in a rotating magnetic field, which is complicated. In addition, cobalt-based amorphous alloys mainly contain cobalt, and therefore have the disadvantage of being expensive.
一方鉄基非晶質合金としては、Ｍｅ 、 Ｍｎ ＋ Ｖ
＊Ｃｒ、Ｒｕ等を添加してなる合金（特開昭５４−２３
０２０号、特開昭５４−４３１１８号、特開昭５４−５
６９１９号勢の明細書）が知られているが、これら合金
では、磁歪については考慮されていない。一般に、鉄基
非晶質合金は安価、かつ、高磁束密度であるという利点
を有する反面、磁歪が大きく（低透磁率）、また、磁気
ヘッド製造工程中の樹脂モールドによる磁気特性劣下が
著しい吟の問題があるた込、磁気ヘッド材料としては＃
１とんど注目されていない。On the other hand, as iron-based amorphous alloys, Me, Mn + V
*Alloy made by adding Cr, Ru, etc.
No. 020, JP-A-54-43118, JP-A-54-5
No. 6919), but these alloys do not take magnetostriction into consideration. In general, iron-based amorphous alloys have the advantages of being inexpensive and having a high magnetic flux density, but on the other hand, they have large magnetostriction (low magnetic permeability), and their magnetic properties are significantly degraded due to resin molding during the magnetic head manufacturing process. As a magnetic head material, #
1. It doesn't get much attention.
そのため、安価で、かつ、磁気ヘッド用として優れ丸竹
性を有する非晶質合金の開発が、当〔発明の目的〕
本発明の目的は、安価な鉄基非晶質合金からなり、しか
本、＊ａ束密度を有し、かつ、特殊な熱処理を必要とせ
ずＫ１１ｌｌ透磁率（低磁歪）を有する磁気ヘッド用材
料を提供することにある。Therefore, it is an object of the present invention to develop an inexpensive amorphous alloy with excellent roundness for use in magnetic heads. , *a flux density and K11ll magnetic permeability (low magnetostriction) without requiring special heat treatment.
本発明者らは、鉄基非晶質合金において、Ｔｌ。 The present inventors have discovered that in iron-based amorphous alloys, Tl.
Ｚ ｒ＋ ）ｉ ｆ ｅ Ｎ ｂ 、 Ｔ ａ又はＷを
７５ｒ定普泳カロすることにより著しく磁歪を低下させ
ることができることを見出し、本発明を完成するに至っ
た。The present inventors have discovered that magnetostriction can be significantly reduced by subjecting Z r+ ) if N b , Ta or W to 75r constant heating, and have completed the present invention.
本発明の磁気ヘッド用鉄基非晶質合金は、次式・
（Ｆ・１−＠ Ｍａ）１ｏｏ−ｂＸｂ
〔式中、ＭＦｉＴｉ 、 Ｚｒ 、 Ｈｆ 、 Ｎｂ
、 ’Ｉ’ａ 、ＷｔＤ群から選はれる少くとも１株の
元素を表わし；ＸはＢ又はＢとＳｔ（但し、Ｓｔは７原
子チ以下）を表わし； ａ 、 ｂはそれぞれ０．０３
≦ａ≦０．１．１０≦ｂ≦１７の関係を満足する数を表
わす。〕で示される組成であることを％徴とするもので
ある。The iron-based amorphous alloy for magnetic heads of the present invention has the following formula:
, 'I'a represents at least one element selected from the WtD group; X represents B or B and St (however, St is 7 atoms or less); a and b are each 0.03
It represents a number that satisfies the relationship: ≦a≦0.1.10≦b≦17. ] The composition is expressed as a percentage.
本発明の非晶質合金１こおいて、Ｍ（Ｔｉ、Ｚｒ。In the amorphous alloy 1 of the present invention, M (Ti, Zr.
ＩＩｆ、Ｎｂ、Ｔａ、Ｗ）は、鉄基非晶質合金の磁歪を
低下させるのに必須な成分で、その包含される量：・ａ
は原子−で表示して、０．０３≦ａ≦０．１の範囲に設
定される。ａが０．０３未満の場合には、磁歪の低下が
顕著でなく、また、０．１を超えると飽和磁束密度の低
下が着しいため、好ましくない。元素Ｍとしては、特Ｋ
Ｎｂ、Ｔａが有効である。IIf, Nb, Ta, W) are essential components for lowering the magnetostriction of iron-based amorphous alloys, and the amount included: ・a
is expressed as an atom - and is set in the range of 0.03≦a≦0.1. If a is less than 0.03, the reduction in magnetostriction will not be significant, and if it exceeds 0.1, the saturation magnetic flux density will be significantly reduced, which is not preferable. As element M, special K
Nb and Ta are effective.
Ｘ（Ｂ又はＢとｓＢは鉄基合金の非晶質化に有効な元素
で、その包含されるに：ｂｉｊ原子−で表示して、１０
≦ｂ≦１７の範囲に設定される。X (B or B and sB are elements effective for making iron-based alloys amorphous, including: bij atoms - expressed as
It is set in the range of ≦b≦17.
ｂが１０未満の場合には、合金の非晶質化が困難となり
、１７を超えると、磁歪の低下が顕著ではなくなる。When b is less than 10, it becomes difficult to make the alloy amorphous, and when b exceeds 17, the decrease in magnetostriction is not significant.
Ｓｌは非晶質合金の製造を容易にするのに有効な元素で
あるが、磁歪を増大させるという欠点があるため、その
包含される量は７原子−以下が好ましい、また、非晶質
合金製造の容易化及び磁歪の低減のためには０．０１原
子−以上０．１原子チ未満であることが史に好ましい。Although Sl is an effective element for facilitating the production of amorphous alloys, it has the disadvantage of increasing magnetostriction, so the amount of Sl included is preferably 7 atoms or less, and In order to facilitate manufacturing and reduce magnetostriction, it is preferable that the amount is 0.01 atoms or more and less than 0.1 atoms.
本発明の非晶質合金は、前記した各成分を所定の割合で
混合した後、溶融し、これを、例えば、液体（溶＃ｋ）
急冷法％によって非晶質合金化し、会費に応じて、これ
に熱処理を施すことＫより、容易に＃ｌ造される。The amorphous alloy of the present invention is produced by mixing the above-mentioned components in a predetermined ratio, melting the mixture, and converting the mixture into a liquid (molten #k), for example.
It can be easily manufactured by forming an amorphous alloy by rapid cooling and then subjecting it to heat treatment according to the fee.
実施例１
（Ｆ・１−ａＮｂａ）８５”３Ｂ１２で示される組成の
非晶質合金を、単ロール法により製造した。即ち、上記
組成に混合し九合金を溶融し、ついで、咳浴融合金を、
＾速口転する単ロール表面上Ｋ。Example 1 An amorphous alloy having the composition shown as (F.1-aNba)85"3B12 was produced by a single roll method. That is, the above composition was mixed with the 9 alloy, and then the cough bath alloy was melted. of,
^ K on the surface of a single roll that quickly turns.
石英管ノズルからアルゴンガス圧（１，０〜２．０にν
ｉ ）で噴出させ、得られた薄帯を急冷して一１０■、
板厚的２０μ−〇長尺テープ状の薄帯とした。次に％該
薄帝を長さ２ｏ■に切取り、これを、試料とした。Argon gas pressure (ν from 1.0 to 2.0) from the quartz tube nozzle
i) and quenched the obtained ribbon for 110 seconds.
It was made into a long tape-like thin strip with a thickness of 20 μm. Next, the thin strip was cut into a length of 2° and used as a sample.
以上の試料につき、ストレインゲージ法によ）飽和磁歪
を測定した。結果を組成比ａとの関係曲線として第１図
に示した。The saturation magnetostriction of the above samples was measured using the strain gauge method. The results are shown in FIG. 1 as a relationship curve with the composition ratio a.
図より、Ｎｂの組成比が増大するとともＫｍ歪が著しく
低下し、特Ｋａが０．０３以上の場合、磁歪定数がｌ０
ＸＩ（１’以下となることが判明した。From the figure, as the composition ratio of Nb increases, the Km strain decreases significantly, and when the special Ka is 0.03 or more, the magnetostriction constant l0
XI (1' or less).
更に、ＮｂＫ代えて、Ｔｉ、Ｚｒ、Ｈｆ、Ｔａ、Ｗを添
加した前記組成の非晶質合金について、同様の測定を行
なつ九結果、Ｎｂの場合と類似の挙動を示した。Furthermore, similar measurements were performed on an amorphous alloy having the above composition in which Ti, Zr, Hf, Ta, and W were added instead of NbK, and the results showed a behavior similar to that of Nb.
実施例２
（”Ｑ、９５Ｎｂ（１０５）！ Ｓ ’ ８８−ｚ Ｂ
１２で示される組成の非晶質合金を、実施例１と同様に
単ロール法により製造し、飽和磁歪を測定した。結果を
組成比２との関係曲線Ａとして第２図に示した。Example 2 ("Q, 95Nb(105)! S' 88-z B
An amorphous alloy having the composition shown by No. 12 was manufactured by the single roll method in the same manner as in Example 1, and the saturation magnetostriction was measured. The results are shown in FIG. 2 as a relationship curve A with composition ratio 2.
図より、２の増大とともに磁歪が著しく低下し、２が８
３以上の場合には磁束定数がｌ０Ｘ１０−６以下となる
ことが判明した。From the figure, the magnetostriction decreases significantly as 2 increases, and 2 becomes 8
It has been found that when the value is 3 or more, the magnetic flux constant becomes 10×10 −6 or less.
ま九、Ｎｂを含有しないＦ＠ｚＳｉ９ｏ−ｚＢｌｏで示
される組成の非晶質合金についても、同様の−ｊ定を行
いその結果を、組成比重との関係−ｆＩＭＢとして第２
図に合わせて示した。Also, for the amorphous alloy with the composition shown by F@zSi9o-zBlo that does not contain Nb, the same −j determination is performed and the result is expressed as the second equation as the relationship with the composition specific gravity −fIMB.
Shown according to the figure.
加効果は顕著であることが判明した。The additive effect was found to be significant.
実施例３
表に示Ｌ７たＪト晶質合金を、実施例１と一様に単ロー
ル法を用いて一１０＋ｗ、板厚約２Ｃ１間の長尺テープ
状の薄帯とした。この薄帯を長−ｇｌ−Ｋ ＩＪ取り、
これをトロイダル状に巻回した後、キュリ一点以上結晶
化温度以下の編反域で熱処理を施し、試料とした。尚、
回転磁場処理は施さなかった。Example 3 The crystalline alloy L7 shown in the table was made into a long tape-like thin strip having a diameter of 110+w and a thickness of about 2C1 using the same single roll method as in Example 1. Take this thin strip long-gl-K IJ,
After winding this into a toroidal shape, it was heat-treated in a knitted region at least one Curie point and below the crystallization temperature, and was used as a sample. still,
No rotating magnetic field treatment was performed.
この試料について、マックスウェルブリッジを用いて１
〜１００ＫＨｚＫおける実効透磁率を測定し、また試料
振動型磁力計を用いて飽和磁束密度を−ｊ定するととも
に実施例１と一様に飽和磁歪も測定した。ＩＫＨｚＫお
ける実効透磁率（μ’ ＩＫ）飽和磁歪及び飽和磁束密
度の値を＊に示した。For this sample, 1
The effective magnetic permeability at ~100 KHzK was measured, and the saturation magnetic flux density -j was determined using a sample vibrating magnetometer, and the saturation magnetostriction was also measured in the same manner as in Example 1. The values of effective magnetic permeability (μ' IK), saturation magnetostriction, and saturation magnetic flux density at IKHzK are shown in *.
比較剰として、Ｍ元本を含まない非晶質合金についても
表に合ゎせて示した。For comparative purposes, amorphous alloys that do not contain M principal are also shown in the table.
表から明らかなように、本発明の非晶質合金は、磁歪が
小さいため、実効透磁率が大きく、また、飽和磁束密度
がｌｏＫＧ以上と大きいこと一判明した。As is clear from the table, the amorphous alloy of the present invention has a small magnetostriction, so it has a large effective magnetic permeability, and it has been found that the saturation magnetic flux density is as large as loKG or more.
本発明の非晶質合金は、鉄を主体にしているため安価で
あり、また、磁歪が小さいため、実効透磁率が大きい。The amorphous alloy of the present invention is mainly composed of iron, so it is inexpensive, and since the magnetostriction is small, the effective magnetic permeability is high.
しかも、飽和磁束密度が大 ′きなものである。史に
は、コバルト系の非晶質合金のような＾温でのエージン
グによる特性劣下が極めて小さい。従って、磁気ヘッド
用材料として優れた適性を有し、その工業的価値は極め
て大きい。Moreover, the saturation magnetic flux density is large. Historically, properties of cobalt-based amorphous alloys due to aging at temperatures are extremely small. Therefore, it has excellent suitability as a material for magnetic heads, and its industrial value is extremely large.
図面の簡単な鋭嘴
第１図は、（Ｆ”１−ａＮｂａ）８５””３Ｂ１２で示
される本発明非晶質合金の組成比ａと飽和磁歪との関係
曲線を示した図である。第２図は、（Ｆ”０．９ＯＮｂ
（１０５）ｚ ｓ’５ａ−ｚＢ１２ で示される本発
明非晶質合金の組成比２と飽和磁歪との関係−ＭＡ、及
び、ＦｅＺ８１５＋６．８１ｏで示される非晶質合金の
組成比２と飽和磁歪との関ｉ―線Ｂである。Figure 1 is a diagram showing a relationship curve between the composition ratio a and saturation magnetostriction of the amorphous alloy of the present invention, which is represented by (F"1-aNba)85""3B12. Figure 2 shows (F”0.9ONb
(105) Relationship between composition ratio 2 and saturation magnetostriction of the amorphous alloy of the present invention represented by z s'5a-zB12 - MA and composition ratio 2 and saturation magnetostriction of the amorphous alloy represented by FeZ815+6.81o The relationship is i-line B.
Claims (2)
ら選ばれる少くとも１種の元素を表わし；ＸはＢ又はＢ
とＳ亀（但し、３１は７原子−以下）を表わし；１．ｂ
はそれぞれ０．０３≦ａ≦０．１ 、１０≦ｂ≦１７の
関係を満足する数を表わす。〕 で示される磁気ヘッド用鉄基非晶質合金。(1) The following formula: % formula % [In the formula, M represents at least one element selected from the group of Ti, ZrtHf, Nb, TatW;
and S turtle (however, 31 represents 7 atoms or less); 1. b
represent numbers satisfying the relationships of 0.03≦a≦0.1 and 10≦b≦17, respectively. ] An iron-based amorphous alloy for magnetic heads.
Ｏ１原子−以上０．１原子哄未満である特許請求の範囲
第１項記載の磁気ヘッド用鉄基非晶質合金。(2) The above X consists of B and Si, and Si is 0.
The iron-based amorphous alloy for a magnetic head according to claim 1, wherein the iron-based amorphous alloy has an O1 atom or more and less than 0.1 atom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6550482A JPS58185747A (en) | 1982-04-21 | 1982-04-21 | Amorphous iron alloy for magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6550482A JPS58185747A (en) | 1982-04-21 | 1982-04-21 | Amorphous iron alloy for magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58185747A true JPS58185747A (en) | 1983-10-29 |
| JPS6239226B2 JPS6239226B2 (en) | 1987-08-21 |
Family
ID=13288963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6550482A Granted JPS58185747A (en) | 1982-04-21 | 1982-04-21 | Amorphous iron alloy for magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58185747A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058087U (en) * | 1983-09-28 | 1985-04-23 | 福本 清顕 | Water stop valve |
| JPS6164844A (en) * | 1984-09-06 | 1986-04-03 | Sony Corp | Amorphous alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472715A (en) * | 1977-11-24 | 1979-06-11 | Toshiba Corp | High permeability amorphous alloy |
| JPS54107825A (en) * | 1978-02-13 | 1979-08-24 | Toshiba Corp | High permeability amorphous alloy |
| JPS5672153A (en) * | 1979-11-14 | 1981-06-16 | Takeshi Masumoto | Amorphous iron alloy of high permeability |
| JPS5789450A (en) * | 1980-11-21 | 1982-06-03 | Matsushita Electric Ind Co Ltd | Amorphous magnetic alloy |
-
1982
- 1982-04-21 JP JP6550482A patent/JPS58185747A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472715A (en) * | 1977-11-24 | 1979-06-11 | Toshiba Corp | High permeability amorphous alloy |
| JPS54107825A (en) * | 1978-02-13 | 1979-08-24 | Toshiba Corp | High permeability amorphous alloy |
| JPS5672153A (en) * | 1979-11-14 | 1981-06-16 | Takeshi Masumoto | Amorphous iron alloy of high permeability |
| JPS5789450A (en) * | 1980-11-21 | 1982-06-03 | Matsushita Electric Ind Co Ltd | Amorphous magnetic alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058087U (en) * | 1983-09-28 | 1985-04-23 | 福本 清顕 | Water stop valve |
| JPS6164844A (en) * | 1984-09-06 | 1986-04-03 | Sony Corp | Amorphous alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6239226B2 (en) | 1987-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5370749A (en) | Amorphous metal alloy strip | |
| JPS6218620B2 (en) | ||
| KR870001283B1 (en) | Metallic glasses having a combination of high permeability | |
| JPS6133900B2 (en) | ||
| US5358576A (en) | Amorphous materials with improved properties | |
| JP2552274B2 (en) | Glassy alloy with perminer characteristics | |
| JPS6362579B2 (en) | ||
| JPH01294847A (en) | Soft-magnetic alloy | |
| JP2823203B2 (en) | Fe-based soft magnetic alloy | |
| JPS58185747A (en) | Amorphous iron alloy for magnetic head | |
| JPS581183B2 (en) | High magnetic permeability amorphous alloy with high magnetic flux density and large squareness ratio | |
| JPS6037179B2 (en) | amorphous magnetic alloy | |
| JPS6038454B2 (en) | Amorphous alloy with excellent effective magnetic permeability | |
| JPH07258728A (en) | Production of iron-base fine crystal soft magnetic alloy | |
| JP2621151B2 (en) | Magnetic material and method of manufacturing the same | |
| JPS6044383B2 (en) | Amorphous alloy for magnetic heads | |
| JPS6261660B2 (en) | ||
| JPH0238520A (en) | Manufacture of fe-base soft-magnetic alloy and magnetic core | |
| JPS5942069B2 (en) | Method for manufacturing amorphous alloy with high effective magnetic permeability | |
| JPH01290746A (en) | Soft-magnetic alloy | |
| JPS6043899B2 (en) | High effective permeability non-quality alloy | |
| JPS6242981B2 (en) | ||
| JPH0255498B2 (en) | ||
| JP2621150B2 (en) | Magnetic material and method of manufacturing the same | |
| JPH01142049A (en) | Fe-based magnetic alloy |