JPS5845164A - Oxide magnetic material - Google Patents
Oxide magnetic materialInfo
- Publication number
- JPS5845164A JPS5845164A JP56143092A JP14309281A JPS5845164A JP S5845164 A JPS5845164 A JP S5845164A JP 56143092 A JP56143092 A JP 56143092A JP 14309281 A JP14309281 A JP 14309281A JP S5845164 A JPS5845164 A JP S5845164A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- mol
- less
- magnetic material
- oxide magnetic
- 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
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- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は酸化物磁性材料、特に磁気記録用ヘッド材料あ
るいはその他の高密度を要求されるMn −Zn7エラ
イトに係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to oxide magnetic materials, particularly Mn-Zn7 elites used in magnetic recording head materials or other materials requiring high density.
電子計算機、鴛あるいはオーディオ等の高密度磁気記録
用ヘッド材料では、精密加工管施すため加工性が良い材
料が必要である。このためには、空孔が少ないこと、多
結晶体では粒径が微細でかつ均一であることが必要であ
る。Materials for high-density magnetic recording heads such as those used in electronic computers, audio equipment, and the like require materials with good workability in order to provide precision-processed tubes. For this purpose, it is necessary that there are few pores, and that the polycrystalline material has a fine and uniform grain size.
VTRではヘッド材料として、フェライト単結晶を使用
しているが高密度ではあるが品質のバラツキが大きいこ
とや摺動ノイズが大きいおよび電気抵抗がα1〜1Ωと
低い等の欠点がある。In VTRs, ferrite single crystal is used as the head material, but although it has a high density, it has drawbacks such as large variations in quality, large sliding noise, and low electrical resistance of α1 to 1Ω.
従来の多結晶゛フェライトでは品質のバラツキは少ない
が空孔があり、これが加工時の粒のはく離あるいは割れ
の原因となる。Conventional polycrystalline ferrite has little variation in quality, but it has pores, which cause grains to peel or crack during processing.
また電気抵抗も低く材料損失も大吉い。It also has low electrical resistance and material loss.
これらの欠点のいくつかを改良したものとしてホットプ
レス7エライトがあるが、空孔はまだあり粒径も必ずし
も均一になっていない。また、熱間静水圧プレス(H工
P)シたフェライトも知られている。(特開昭49−1
28!96、特開昭52−59893 ) Lかし、従
来の野した材料は空孔は少ないが、粒径は必ずしも均一
でなく、また電気抵抗も低く材料損失も大きい。Hot-pressed 7Elite is a product that has improved some of these drawbacks, but it still has pores and the particle size is not necessarily uniform. Also known is hot isostatically pressed (H-P) ferrite. (Unexamined Japanese Patent Publication No. 49-1
28!96, Japanese Unexamined Patent Publication No. 52-59893) Although conventional materials have few pores, the particle size is not necessarily uniform, and the electrical resistance is low, resulting in large material loss.
本発明゛番マ前記従来技術の欠点を解消し、均一で微細
な粒樟を有し、加工性が良く電気抵抗が大きく、かつ材
料損失の小さい高密度酸化物磁性材料を提供するもので
ある。The present invention overcomes the drawbacks of the prior art and provides a high-density oxide magnetic material having uniform and fine grains, good workability, high electrical resistance, and low material loss. .
上記目的を達成するために、本発明は酸化鉄50〜65
モル%、酸化亜鉛5〜30モル%、残部が酸化マンガン
からなるMn−Znフェライトにおいて、PbVの酸化
物をそれぞれαFiwt%以下添加し)口することによ
り空孔率を05%以下としたことを特徴とするものであ
る。In order to achieve the above object, the present invention provides iron oxide 50-65
In Mn-Zn ferrite consisting of 5 to 30 mol% of zinc oxide and the remainder of manganese oxide, the porosity was reduced to 0.05% or less by adding PbV oxides of αFiwt% or less. This is a characteristic feature.
本発明において酸化鉄が50モル2未満のときは磁気特
性が得にくく、また65モル2を超える場合は磁気特性
が得にくくさらに高密度が得にくい。In the present invention, when the amount of iron oxide is less than 50 mol 2 , it is difficult to obtain magnetic properties, and when it exceeds 65 mol 2 , it is difficult to obtain magnetic properties, and furthermore, it is difficult to obtain high density.
また酸化亜鉛が5そル%未満あるいは30モル%を超え
る場合には所望の磁気特性が得られない。Further, if the zinc oxide content is less than 5 mole % or more than 30 mole %, desired magnetic properties cannot be obtained.
Pb、 Vの酸化物量が05wt%を超えると高密度が
得られなくなる。本発明の効果をつるにはPb、Vの酸
化物量がαSwt%以下であることが腿ましいが更にα
01閥1wt−の範囲であればすぐれた効果が得られる
。If the amount of oxides of Pb and V exceeds 05 wt%, high density cannot be obtained. In order to obtain the effects of the present invention, it is desirable that the amount of oxides of Pb and V be less than αSwt%, but
Excellent effects can be obtained within the range of 0.01 wt.
以下本発明を実施例に基づき詳細に説明する0実施例1
馳0,27モル%、−021モル%、ア・露08を52
モル%とするように原料を秤量し、さらにPbOα05
wt%、Vmo6α1wt%添加し、ボールミルで混合
したのち乾燥し仮焼を900−11000でした。さら
にボールミルで粉砕後乾燥し、成形し一次焼成を1lo
o〜1350 Cでし空孔率t−5%以下にした。次に
田を人r雰囲気中1goop、 1aoo気圧で行なっ
た。空孔率は03%となりzf′−aaQ儂である・ま
た粒径は&5μとなり均一であった。Hereinafter, the present invention will be explained in detail based on examples.Example 1 0.27 mol%, -021 mol%, 52 mol% of A.
Weigh the raw materials so that they are in mol%, and further add PbOα05
wt% and Vmo6α1wt% were added, mixed in a ball mill, dried, and calcined at 900-11000. Furthermore, it is crushed in a ball mill, dried, shaped and fired for 1 lo.
o ~ 1350 C to reduce the porosity to t-5% or less. Next, the test was carried out in a human atmosphere at 1 goop and 1 aoo atmospheric pressure. The porosity was 0.3%, which was zf'-aaQ, and the particle size was &5μ, which was uniform.
実施例2
Mn027% ル% 、 Zn021%ル%、lN1m
01 f 52 % ル% トスるように原料を秤量し
)さらに表1に示すような範囲でpboと7.Qjを添
加し、実施例1と同様に試料を作製しΩ処理を行なった
。その結果を表1に示す。Example 2 Mn027%le%, Zn021%le%, lN1m
01 f 52 % % Weigh the raw materials in a toss-like manner, and then add pbo and 7.0% within the range shown in Table 1. A sample was prepared in the same manner as in Example 1 with the addition of Qj, and Ω treatment was performed. The results are shown in Table 1.
表 1
Mn031)T−ルー、2m10モル% 、’l−06
54% k % トするように原料を秤量し、さらに実
施例2と同様に表2に示すような範囲で闇とVmOmk
添加し、実施例1と同様に試料を作成し、Ω処理を行な
ったOその結果を表2に示す。Table 1 Mn031) T-Rue, 2m10 mol%,'l-06
The raw materials were weighed so that 54% k%
A sample was prepared in the same manner as in Example 1, and the Ω treatment was performed. The results are shown in Table 2.
表 2
実施側番
迩027モル%、加081モル%、r−〇、52七y%
とするように原料を秤蓋し、さらにPbOα015wt
%、V、O,α1wt、%および副成分としてx、or
、’ri、oo、zr、s*Y、qNa、Ni、81
、Mg、Ou、’E’s、Od、Taの酸化物またはa
t、1s、aの1wtたは2種以上添加して実施例
へ1と同様に試料を作成し、Ω処理を行なった。Table 2 Implementation side number 027 mol%, addition 081 mol%, r-〇, 527y%
Weigh the raw materials with a lid and add PbOα015wt.
%, V, O, α1wt, % and as a subcomponent x, or
,'ri,oo,zr,s*Y,qNa,Ni,81
, Mg, Ou, 'E's, Od, Ta oxide or a
Samples were prepared in the same manner as in Example 1 by adding 1 wt or two or more of t, 1s, and a, and Ω treatment was performed.
その結果の代表例を表3に示す。Table 3 shows representative examples of the results.
表 3
上記実施例では酸化物の例を上げたが、これは分解して
これらの1化物になるような炭m埴へ水酸化物、善酸塩
などを用いることもできる。Table 3 In the above embodiments, examples of oxides have been given, but hydroxides, sulfuric acid salts, etc. can also be used to convert into charcoal which decomposes into monoxides.
以上のように本発明に係るM!1− Zn 7エライト
は空孔が少なく、均一で微細な粒径を有し加工性に優れ
、電気抵抗が大きく、かつ材料損失の小さい高密度材料
てあり本発明の工業的な寄与はきわめ手続補正書7(自
発)
n、、+h+ Fh7.1411411特許庁長官殿
イ! 111 (7) 名 f示 酸化物磁性材
料補正をする者
事ず1との関係 特 許 出 願 人I+所
東京都千代Il1区丸の内2丁目1番2g−8#
75081 Ul立余属株式会社代表者河野 県央。As described above, M! according to the present invention! 1- Zn 7 elite is a high-density material with few pores, uniform and fine particle size, excellent workability, high electrical resistance, and low material loss, and the industrial contribution of the present invention is extremely important. Amendment 7 (spontaneous) n,, +h+ Fh7.1411411 Mr. Commissioner of the Japan Patent Office! 111 (7) Name f Indication Person who corrects oxide magnetic materials Relationship with 1 Patent Applicant Person I + Place
2-1-2g-8 Marunouchi, Chiyo Il1-ku, Tokyo#
75081 Ultate Yosen Co., Ltd. Representative Keno Kono.
代 理 人
l+i 所 東京都千代1η区丸の内2丁目1
番2号補正の対象
明細書の「発明の詳細な説明」の欄。Agent Person: 1 + I Address: 2-1 Marunouchi, Chiyo 1η-ku, Tokyo
``Detailed Description of the Invention'' column of the specification subject to amendment No. 2.
補正の内容
別紙の通り
/−ゝ\
補正の内容
I #i細嘗の「発明の詳細な説明」の欄の記載を下
記の通゛り訂正する。Contents of the amendment As shown in the attached sheet/-ゝ\ Contents of the amendment I The description in the "Detailed Description of the Invention" column of #i is corrected as follows.
記
L 明細書第3頁第6行のrPbJの後に読点を挿入す
る。Note L Insert a comma after rPbJ on page 3, line 6 of the specification.
2 同書第6j¥表2中の「損失(mW ) Jを「損
O
失(mwloO)Jに訂正する。2 Correct “Loss (mW) J” in Table 2 of Chapter 6 of the same book to “Loss O (mwloO) J”.
& 同書第7頁表1中の「添加量」を「添加量(wt%
)」に訂正する。& “Additional amount” in Table 1 on page 7 of the same book is “Additional amount (wt%)”
)”.
以 上 −36シthat's all -36shi
Claims (1)
残部が酸化マンガンからなるMu−Zn7エライトにお
いて、酸化鉛をα5wt%以下、酸化バナジウムをα5
wt %以下添加含有せしめ1空孔率が05%以下であ
ることを特徴とする高密度酸化物磁性材料。 2 副成分としてに、 Or、 Ti、Oo、 Zr、
1六a′Q。 Y、)ia、lii、Si、Mg、Ou、To、Od、
%Taの酸化物またはot、 o、sのillまたは2
種以上をα05wt%以下含有したことを特徴とする特
許請求の範囲第1項記載の高密度酸化物磁性材料。[Claims] L: 50 to 65 mol% of iron oxide, 5 to 30 mol% of zinc oxide
In Mu-Zn7 elite, the balance of which is manganese oxide, lead oxide is α5wt% or less, and vanadium oxide is α5wt%.
A high-density oxide magnetic material characterized in that it has an additive content of 0.05% or less and a porosity of 0.05% or less. 2 As subcomponents, Or, Ti, Oo, Zr,
16a'Q. Y, )ia, lii, Si, Mg, Ou, To, Od,
%Ta oxide or ot, o, s ill or 2
The high-density oxide magnetic material according to claim 1, characterized in that it contains α05wt% or less of at least one species.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56143092A JPS5845164A (en) | 1981-09-10 | 1981-09-10 | Oxide magnetic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56143092A JPS5845164A (en) | 1981-09-10 | 1981-09-10 | Oxide magnetic material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5845164A true JPS5845164A (en) | 1983-03-16 |
Family
ID=15330720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56143092A Pending JPS5845164A (en) | 1981-09-10 | 1981-09-10 | Oxide magnetic material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5845164A (en) |
-
1981
- 1981-09-10 JP JP56143092A patent/JPS5845164A/en active Pending
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