JPS60132301A

JPS60132301A - Oxide magnetic material

Info

Publication number: JPS60132301A
Application number: JP58241607A
Authority: JP
Inventors: Yoshihiro Suenaga; 末永　義弘
Original assignee: Sumitomo Special Metals Co Ltd
Current assignee: Proterial Ltd
Priority date: 1983-12-20
Filing date: 1983-12-20
Publication date: 1985-07-15
Also published as: JPH0521859B2

Abstract

PURPOSE:To obtain the Mn-Zn ferrite having low magnetic loss characteristics by a method wherein specific CaO and No2O5 and a kind of SiO2, V2O5, Al2O3, CoO, CuO and ZrO2 are contained in the fundamental composition consisting of Fe2O3, MnO and ZnO of specific composition. CONSTITUTION:CaO of 0.005-0.3wt% and Nb2O5 of 0.005-0.25wt% are contained in the fundametal composition consisting of Fe2O3 of 50-70mol%, MnO of 10-40mol% and ZnO of 5-30mol%, and besides, a kind of SiO2 of 0.001- 0.2wt%, V2O5 of 0.02-2wt%, Al2O3 of 0.01-2wt%, CoO of 0.01-2wt%, CuO of 0.01-0.2wt% and ZrO2 of 0.01-0.2wt% is added therein, and after they have been compounded and mixed, a temporary sintering is performed. Then, the above is pulverized using a ball mill, molded into ring shape, and sintered in the nitride gas atmosphere wherein oxygen concentration is properly controlled. As a result, when the magnetic characteristics of the sintered product obtained is measured, the core loss of the Mn-Zn ferrite and its magnetic characteristics can be improved remarkably even at a high sintering temperature without generation of abnormal crystal structure.

Description

【発明の詳細な説明】この発明は、Ｍｎ　−Ｚｎ系フ」−ライトに係り、商い
焼結温度でも異常結晶組織を生成することなく、１ぐれ
た磁気特性、特に低磁気損失特性を右Ｊ−る１１ｎ−Ｚ
η系ノＪライトに関づ゛る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a Mn-Zn based free-light, which has excellent magnetic properties, especially low magnetic loss properties, without forming an abnormal crystal structure even at commercial sintering temperatures. -ru11n-Z
It is related to η series J light.

ｔ’ｈ　−Ｚｎ系フェライトは、通信機器、電子計算機
、Ｖｌ−Ｒ１磁気ヘッド等、各種民生用（浅型に多用さ
れ、それぞれの用途に応じた改良が施されＣいる。t'h-Zn-based ferrites are widely used in various consumer products (shallow types) such as communication equipment, electronic computers, and Vl-R1 magnetic heads, and are improved according to each application.

今日の機器の小型化並びに高性能化のため、益々、磁気
損失の少ない磁性材料がめられている、７−かかる１ｎ
−Ｚη系）「ライトにおいて、残留１（１゜ヒステリシ
ス損、渦電流損の少４ｊい祠わｌを１＋４６方法として
、従来、ＣａＯと５ＬＯ２の複合添加にＪ、す、電気抵
抗を大ぎくし、磁気特性を向上させる手段がよく知られ
ていＩＣ８しかし、月利の密＋Ｘを向上させるために、
焼結温度を高くすると、宜常な焼結反応が起り、焼結組
織が人さな結晶と小さな結晶との混在状態を呈し、磁気
特性の劣化を招来しやザい問題があった。Due to the miniaturization and high performance of today's equipment, magnetic materials with low magnetic loss are increasingly being used.
-Zη system) "In the light, residual 1 (1 degree hysteresis loss, low eddy current loss 4j method) was used as the 1+46 method, and conventionally, the combined addition of CaO and 5LO2 was used to greatly increase the electrical resistance. However, in order to improve the density +X of the monthly interest rate,
When the sintering temperature is raised, a normal sintering reaction occurs, and the sintered structure exhibits a mixture of human-like crystals and small crystals, which tends to cause deterioration of magnetic properties.

この発明は、上記のｈｎ　Ｚｎ系）Ｊライトの現状に鑑
み、高い焼結湿度でも異常結晶組織を生成することなく
、ずぐれた磁気特性が得られ、特に１１（磁気損失特性
を右ＪるＩ”Ｉｎ　Ｚｎ系）Ｊライトを目的としている
。In view of the current situation of the above-mentioned hn Zn-based J-light, this invention has been developed to obtain superior magnetic properties without producing abnormal crystal structures even at high sintering humidity, and in particular to improve the magnetic loss properties of Intended for J-light (I”In Zn series).

寸なわら、この発明は、Ｆｅ２０３５（１・〜７０モル
％。However, in this invention, Fe2035 (1.~70 mol%).

ＭｎＯ１０〜４９モル％。MnO 10-49 mol%.

Ｚｎ０５〜３０モル％、からなる基本組成に、ＣａＯ０
，００！〕〜Ｏ，３ｗｔ％。The basic composition consists of Zn05-30 mol%, CaO0
,00! ]~O, 3wt%.

Ｎｂ、Ｏ５０，００５〜０．２５ｗｔ％を含有し、さら
に、５ＬＯ８ｏ、ｏｏｉ〜Ｏ，２ｗｔ％。Contains Nb, O50,005~0.25wt%, and further contains 5LO8o,ooi~O,2wt%.

Ｖ、Ｏ，０，０１〜２ｗｔ％、　Ｎｐ（ｈ　０．０１〜
２ｗｔ％。V, O, 0.01~2wt%, Np(h 0.01~
2wt%.

Ｃｏｏ　０．Ｏ４〜２ｗｔ％、　ＣｕＯ０，０１〜０．
２ｗｔ％。Coo 0. O4-2wt%, CuO0.01-0.
2wt%.

Ｚｒ０ｚ　０．０１〜０．２ｗｔ％のうち１種を含有ゴ
ることを特徴とする酸化物磁性材料である。This is an oxide magnetic material characterized by containing one type of ZrOz in an amount of 0.01 to 0.2 wt%.

この発明にＪ、る酸化物磁性１．（利において、組成を
限定した理由を以下に説明する。According to this invention, oxide magnetism 1. (The reason for limiting the composition is explained below.

Ｍｎ　−ＺＴＩ系ノエライ１〜の基本組成を、Ｆｅ２Ｏ
３５０〜１０モル％、　Ｉ’Ｉｎ０１０〜４０モル％、
　Ｚｎ０　５〜３０モル％どした理由は、これ以外の組
成では、透磁率が極めて小さくなり、また、保磁力も大
きくなりすぎて軟質磁性材料どして実用的でないためで
ある。The basic composition of Mn-ZTI-based Noelai 1~ is changed to Fe2O
350-10 mol%, I'In010-40 mol%,
The reason why the Zn0 content is 5 to 30 mol % is that if the composition is other than this, the magnetic permeability will be extremely low and the coercive force will also be too large to be practical as a soft magnetic material.

ＣａＯは、低磁気損失を得るために添加覆るが、０．０
０５ｗｔ％未満では電気抵抗が小さくなり、所要の磁気
特性が得られず、また、０．３ｗｔ％を越える添加では
、高密度化のため焼結温度を高くすると、異常組織が発
生しやすくなるｌ〔め、０．００５〜０．３Ｗ［％とす
る。CaO is added to obtain low magnetic loss, but 0.0
If it is less than 0.05 wt%, the electrical resistance becomes small and the required magnetic properties cannot be obtained, and if it exceeds 0.3 wt%, abnormal structures are likely to occur when the sintering temperature is increased to increase the density. [Me, 0.005 to 0.3 W [%].

Ｎｂ２Ｏ５は、ＣａＯとの複合添加により、ＣａＯ単独
の場合よりもざらにづぐれた磁気特性か得られるため添
加するが、０，００５ｗｔ％木清１では上記効果が１５
１られす、また、０．２５ｗｔ％を越えると、焼結１Ｆ
、１に異常組織が発生しやすくなるため、０．００５・
〜Ｌ２５ｗｔ％の添加と覆る、。Nb2O5 is added because combined addition with CaO provides more rough magnetic properties than when using CaO alone, but at 0,005 wt% Kokusei 1, the above effect is 15%.
Also, if it exceeds 0.25wt%, sintering 1F
, 0.005・1 because abnormal tissues are more likely to occur.
〜L25wt% addition and cover.

この発明は、５ｉ０２．　Ｖ２０ｒ、　Ｎ２Ｏ３、ＣＡ
ｏ　、　ＣｕＯ。This invention is based on 5i02. V20r, N2O3, CA
o, CuO.

ｌｒ′○２のうち１種を含有することぐ特徴とし、ｉｎ
　−Ｚη系フェライトの磁気損失特性の改善に著しいＡ
）果が得られるが、Ｓシ０．、　Ｏｏ（１０１ｗｔ％未
）菌。It is characterized by containing one type of lr'○2, and in
-A remarkable improvement in the magnetic loss characteristics of Zη-based ferrite
) fruit is obtained, but S 0. , Oo (less than 101 wt%) bacteria.

Ｖ、Ｏ，０，０１ｗｔ％未渦、　Ｎ、０３０．０１　ｗ
ｔ％未渦。V, O, 0.01 wt% unvortexed, N, 030.01 w
t% unvortexed.

Ｃｏ００，０１　ｗｔ％未渦、　ＣｕＯ０，（１１ｗｔ
％木満、Ｚｒ０゜０．０１　ｗｔ％未満では、電気抵抗
が小さくなり、磁気損失が大きくなり好ましくなく、ま
た、５ＬＯｐ０、２ｗｔ％、■２０．２ｗｔ％、　Ｎ２
Ｏ３２ｗｔ％、Ｃｏ０２ｗｔ％、　ＣａＯ０，２ｗｔ％
、　ＺｒＯ２０，２ｗｔ％をそれぞれ越えると、焼結時
に異常結晶か生成し、磁気損失も大きくなるため好まし
くないため、５ＬＯ２０，００１〜０．２ｗｔ％。Co00,01 wt% unvortexed, CuO0, (11wt
If it is less than %Kimitsu, Zr0゜0.01 wt%, the electric resistance will be small and the magnetic loss will be large, which is undesirable.
O32wt%, Co02wt%, CaO0,2wt%
, ZrO20,001 to 0.2 wt%, respectively, which is not preferable because abnormal crystals will be generated during sintering and magnetic loss will increase.

Ｖ、Ｏ，０，０１〜２ｗｔ％、　／Ｖ２Ｏ３０，０１〜
２ｗｔ％。V, O, 0,01~2wt%, /V2O30,01~
2wt%.

Ｃｏｏ　０．０１〜２ｗｔ％、　ＱｔＯ０，０１〜０．
２ｗｔ％。Coo 0.01-2wt%, QtO 0.01-0.
2wt%.

ＺｒＯ２０，０１〜０．２ｗｔ％どする。Add ZrO20.01 to 0.2 wt%.

なお、この発明の主原料、添加物には、焼成により酸化
物となり得る化合物を使用できることは当然である。It goes without saying that compounds that can be converted into oxides by firing can be used as the main raw materials and additives of this invention.

以下に、実施例を示し、この発明の効果を明らかにする
。Examples will be shown below to clarify the effects of this invention.

Ｆｅ２Ｏ３５３モル％、　ＭｎＯ３１モル％、　ＺｎＯ
１６１ニル％。Fe2O3 53 mol%, MnO3 1 mol%, ZnO
161%.

からなる基本組成に、ＣａＯ、Ｎｂ２Ｏ５及ヒＳＬＯ，
、。The basic composition consists of CaO, Nb2O5 and SLO,
,.

ＶｚＯｇ、　Ａｌ２Ｏ３，Ｃｏ０　、　ＣＬＬＯ、Ｚｒ
Ｏ２のうら１種を、第１表に示す範囲で添加し、配合、
混合したのら、８５０℃で仮焼成し１〔。その後ボール
ミルで粉砕し、外径ａｌｌＩｌｌＩ×内径４　ｎ＋ｍ　
Ｘ高さ２１１１１１１寸法のリング状に成型し、酸素濃
度を制御した窯素ガス雰囲気で、１２５０℃、　３時間
の条件で焼成した。得られた焼成品の磁気特性を測定し
、その結果を第１表に示り−。VzOg, Al2O3, Co0, CLLO, Zr
Add one type of O2 in the range shown in Table 1, blend,
After mixing, pre-baking at 850°C [1]. After that, grind it with a ball mill to obtain the outer diameter allIllI×inner diameter 4n+m.
It was molded into a ring shape with x height of 2111111, and fired at 1250°C for 3 hours in a kiln gas atmosphere with controlled oxygen concentration. The magnetic properties of the obtained fired product were measured and the results are shown in Table 1.

なお、第１表にお（プるコア損失は、上記リング状焼成
品を巻線し、１０（ｌｋ卜（ｚの交流電流を流し、２０
００Ｇのときのコア損失を測定した。In addition, Table 1 shows the core loss when the above ring-shaped fired product is wound, an alternating current of 10 (lk) (z is applied, and 20
Core loss at 00G was measured.

第１表Ｊ：り明らかな如く、この発明による１１ｉ　−
Ｚｎｎ系フシイ１〜は、コア損失の低減、磁気特性の改
善に箸しい効果があることが分る。Table 1 J: As is clear, 11i − according to the invention
It can be seen that Znn-based Fushies 1 to 1 are highly effective in reducing core loss and improving magnetic properties.

以下余白Below margin

Claims

【特許請求の範囲】１Ｆｏ２ｏ３５ｏ〜７０モル％、　１１ｎ０１０〜４０
−Ｅ／Ｌ／％。ＺｎＯ５〜３０モル％、からなる基本組成に、ＣａＯ０
，００５〜０．３ｗｔ％。Ｎｂ２０５０．００５−０．２５ｗｔ％を含有し、ざら
に、５ＬＯ２０，００１〜０．２ｗｔ％。Ｖ、Ｏ，０，０１〜２ｗｔ％、　＃２０３　０．０７〜
２ＷＬ％。Ｃｏｏ　０．０１〜２ｗｔ％、　ＣｕＯ０，０１〜０．
２ｗｔ％。ＺｒＯ２０，０１〜０．２Ｗｊ％のうち１稲を含有する
ことを特徴とする酸化物磁性材料。[Claims] 1Fo2o35o~70mol%, 11n010~40
-E/L/%. The basic composition consists of 5 to 30 mol% of ZnO, and CaO0
,005-0.3wt%. Contains 0.005-0.25 wt% of Nb205 and 20,001-0.2 wt% of 5LO. V, O, 0.01~2wt%, #203 0.07~
2WL%. Coo 0.01-2 wt%, CuO 0.01-0.
2wt%. An oxide magnetic material characterized by containing 1% of ZrO20.01 to 0.2Wj%.