JPS63151620A - Oxide magnetic material having low loss - Google Patents
Oxide magnetic material having low lossInfo
- Publication number
- JPS63151620A JPS63151620A JP61295768A JP29576886A JPS63151620A JP S63151620 A JPS63151620 A JP S63151620A JP 61295768 A JP61295768 A JP 61295768A JP 29576886 A JP29576886 A JP 29576886A JP S63151620 A JPS63151620 A JP S63151620A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- weight
- loss
- magnetic material
- zirconium dioxide
- 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
- 239000000696 magnetic material Substances 0.000 title claims description 15
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 9
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 32
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 9
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 230000004907 flux Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 6
- 239000011162 core material Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明の低損失酸化物磁性材料特にスイッチング電源に
使用して高周波高磁束密度における鉄損特性を改善し得
る磁性材料の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the improvement of low-loss oxide magnetic materials, particularly magnetic materials that can be used in switching power supplies to improve iron loss characteristics at high frequencies and high magnetic flux densities.
従来、スイッチング電源用の変圧器においては。 Conventionally, in transformers for switching power supplies.
スイッチング周波数として専ら２５〜１００ ｋＨｚ程
度のものが使用されておシこれに対応すべき低損失酸化
物磁性材料として、上述した組成の材料が使われており
、３０〜３７モル係の一酸化マンガン（ＭｎＯ） ｌ
Ｏ〜１５モルチの酸化亜鉛、残酸化第二鉄と、副成分と
して、０．０４〜０．１０重量％の酸化カルシウム（Ｃ
ａＯ）と０．０１５〜０．１００重量％の二酸化ケイ素
（ＳｉＯ２）の組成を持つ材料を高周波のスイッチング
電源用材料として使用することは従来から行われている
所である。A switching frequency of about 25 to 100 kHz is used, and materials with the above-mentioned composition are used as low-loss oxide magnetic materials to cope with this. (MnO) l
O~15 molt of zinc oxide, residual ferric oxide, and 0.04~0.10% by weight of calcium oxide (C
It has been conventional practice to use a material having a composition of silicon dioxide (SiO2) in an amount of 0.015 to 0.100% by weight as a material for a high-frequency switching power supply.
近年、スイッチング電源を小形、軽量化するために、ス
イッチング周波数を１００ ｋＨｚ以上の高周波で使用
することが一般的となｐつつあシ、高周波、高磁束密度
で使用する材料が強く要求されている。しかし、従来組
成の低損失酸化物磁性材料ではスイッチング周波数が１
００ ｋＨｚ以上のスイッチングミ源側の変圧器の磁芯
材料として使用すると、その鉄心の損失が大きく１発熱
が大きいという欠点があった。In recent years, in order to make switching power supplies smaller and lighter, it has become common to use high switching frequencies of 100 kHz or higher, and there is a strong demand for materials that can be used at high frequencies and high magnetic flux densities. . However, in low-loss oxide magnetic materials with conventional compositions, the switching frequency is 1.
When used as a magnetic core material for a transformer on the side of a switching power source of 0.00 kHz or higher, it has the disadvantage that the iron core has a large loss and generates a large amount of heat.
本発明は周波数が１００ ｋＨｚ以上の高い周波数で使
用しても鉄損が小さい新しい低損失酸化物磁性材料を提
供することにある。An object of the present invention is to provide a new low-loss oxide magnetic material that has low iron loss even when used at high frequencies of 100 kHz or higher.
本発明は、上記の問題点を解決し得るもので主成分とし
て３０〜３７モル、％の一酸化マンガン（ＭｎＯ） １
０〜１５モルチの酸化亜鉛（ＺｎＯ）及び残分として０
．０４〜０．１０重量％の酸化カルシウム（ＣａＯ）と
０．０１５〜０．１００重量％の二酸化ケイ素（ＳｉＯ
２）を含む組成であるＭｎ −Ｚｎ系フェライトの低損
失酸化物磁性材料に、０．１５重量％以下（０チを含ま
ず）の二酸化ジルコニウム（ＺｒＯ２）を添加した低損
失酸化物磁性材料である。The present invention can solve the above problems and contains manganese monoxide (MnO) of 30 to 37 mol% as a main component.
Zinc oxide (ZnO) from 0 to 15 molt and 0 as the balance
．． 04-0.10% by weight of calcium oxide (CaO) and 0.015-0.100% by weight of silicon dioxide (SiO
2) A low-loss oxide magnetic material made by adding 0.15% by weight or less (not including 0%) of zirconium dioxide (ZrO2) to a low-loss oxide magnetic material of Mn-Zn-based ferrite, which has a composition including 2). be.
〔実施例〕 以下１本発明の１実施例を図面を参照して説明する。〔Example〕 An embodiment of the present invention will be described below with reference to the drawings.
第１図は主成分として５２．０モルチの酸化第二鉄（Ｆ
ｅ２０３） 、 ３４．５モルチの一酸化マンガン（Ｍ
ｎＯ）及び１３．５モルチの酸化亜鉛（ＺｎＯ）を含有
し副成分として０．０１８重量％の二酸化ケイ素（Ｓｉ
Ｏ２）と０．０４３重量％の酸化カルシウム（ＣａＯ）
を含有する従来組成のＭｎ −Ｚｎ系フェライトに０．
１５重量％以下の二酸化ノルコニウム（ＺｒＯ２）を添
加し、これ等を混合し、造粒し、成形プレスした後、窒
素ガス雰囲気中に於て酸素分圧１．３ａｔ％、温度１３
１０℃だおいて焼結した酸化物磁性材料に対して、二酸
化ジルコニウム（ＺｒＯ２）の添加量を・ぐラメータと
した時の室温附近に於ける温度Ｔ Ｉ：’Ｃ，：ｌと電
力損失ＰＢＣｋＷ／ｍ３〕の関係を示した特性図である
。本発明に於ける二酸化ジルコニウムは他の酸化物と同
等の粒度の材料を他の酸化物粉末と共【従来工程によシ
混合造粒。Figure 1 shows 52.0 molt of ferric oxide (F) as the main component.
e203), 34.5 molty manganese monoxide (M
nO) and 13.5 moles of zinc oxide (ZnO), and 0.018% by weight of silicon dioxide (Si) as an accessory component.
O2) and 0.043% by weight calcium oxide (CaO)
0.0.
After adding 15% by weight or less of norconium dioxide (ZrO2), mixing, granulating, and molding press, the mixture was heated to an oxygen partial pressure of 1.3 at% and a temperature of 13% in a nitrogen gas atmosphere.
For an oxide magnetic material sintered at 10℃, the temperature T I:'C, :l and the power loss PBCkW near room temperature when the amount of zirconium dioxide (ZrO2) added is taken as a parameter. /m3]. Zirconium dioxide in the present invention is made by mixing and granulating materials with other oxide powders using a conventional process.
成形プレス焼結の操作を行い製造した。It was manufactured by performing a forming press sintering operation.
なお２図は周波数がｌ ＯＯｋＨｚ 、最大磁束密度Ｂ
ｍが２０００Ｇの場合の電力損失を示している。又図に
おいて
１、は二酸化ジルコニウム（Ｚｒ０２）を添加しない場
合。In Figure 2, the frequency is lOOkHz and the maximum magnetic flux density B
It shows the power loss when m is 2000G. In the figure, 1 is the case where zirconium dioxide (Zr02) is not added.
２、は０．０３重量％の二酸化ジルコニウム（ＺｒＯ２
）を添加した場合。2 is 0.03% by weight of zirconium dioxide (ZrO2
) is added.
３、は０．０６重量％の二酸化ジルコニウム（ＺｒＯ２
）を添加した場合。3, 0.06% by weight of zirconium dioxide (ZrO2
) is added.
４、は０．０９重量％の二酸化ジルコニウム（ＺｒＯ２
）を添加した場合。4, 0.09% by weight of zirconium dioxide (ZrO2
) is added.
５、は０．１２重量％の二酸化ジルコニウムを添加した
場合
６、は０．１５重量％の二酸化ジルコニウム（Ｚ ｒｏ
２）を添加した場合の特性をそれぞれあられしている。5. When 0.12% by weight of zirconium dioxide is added, 6. When 0.15% by weight of zirconium dioxide (Z ro
The characteristics when 2) is added are shown.
図よシ２周波数１００ ｋＨｚの場合、電力損失ＰＢは
二酸化ジルコニウム（ＺｒＯ２）を添加するか否かに無
関係に鉄損は温度が約６０℃のとき最小値を有する。そ
して、二酸化ジルコニウム（Ｚｒ０２）の添加量を増加
していくにつれて、電力損失ＰＢは小さくなシ添加量が
約０．０９重量％のときが最も電力損失ＰＢが小さくな
シ、それよりも添加量を多くすると電力損失ＰＢが増加
していき、添加量が０．１２重量％を越えると添加しな
いときよりも電力損失が大きくなる。このことよシ周波
数１００ｋＨｚにおいては二酸化ジルコニウム（ＺｒＯ
２） ’ｔ”０．１２重量−以下（０チを含まず）添加
した方が。Figure 2 At a frequency of 100 kHz, the power loss PB has a minimum value when the temperature is about 60° C., regardless of whether zirconium dioxide (ZrO2) is added or not. As the amount of zirconium dioxide (Zr02) added increases, the power loss PB becomes smaller.When the amount added is about 0.09% by weight, the power loss PB becomes the smallest. As PB increases, the power loss PB increases, and when the amount added exceeds 0.12% by weight, the power loss becomes larger than when it is not added. This means that at a frequency of 100kHz, zirconium dioxide (ZrO
2) It is better to add 't' 0.12 weight - or less (not including 0).
添加しないものよシミ力損失が小さくなることが判明し
た。It was found that the loss of stain strength was smaller than that without additives.
第１表に２本発明によシ得られた酸化物磁性材料＆１（
副成分として０．０１８重量％の二酸化ケイ素（ＳｉＯ
２）、０．０４３重量％の酸化カルシウム（ＣａＯ）及
び０．０９重量％の二酸化ジルコニウム（Ｚｒ０２）を
含有）と従来の酸化物磁性材料屋２（副成分として０．
０１８重量％の二酸化ケイ素（Ｓ ｔ Ｏ２）と０．０
４３重８％の酸化カルシウム（ＣａＯ）を含有し二酸化
ジルコニウム（ＺｎＯ２）は添加しなめ）の緒特性を示
す。Table 1 shows 2 oxide magnetic materials obtained according to the present invention &1 (
0.018% by weight of silicon dioxide (SiO
2), containing 0.043% by weight of calcium oxide (CaO) and 0.09% by weight of zirconium dioxide (Zr02)) and conventional oxide magnetic material 2 (containing 0.043% by weight of calcium oxide (CaO) and 0.09% by weight of zirconium dioxide (Zr02)) and the conventional oxide magnetic material 2 (containing 0.043% by weight of calcium oxide (CaO) and 0.09% by weight of zirconium dioxide (Zr02)).
0.018 wt% silicon dioxide (S t O2) and 0.0
Contains 8% calcium oxide (CaO) by weight and exhibits the same characteristics as zirconium dioxide (ZnO2).
以下永日
第 １ 表
ここに
μｉ：初透磁メ率
Ｂ、５：飽和磁束密度
（磁化力１５００ｅにおける磁束密度）Ｂｒ：残留磁束
密度
Ｈｃ：保持力
Ｐ：固有抵抗を示す。Table 1 below shows μi: initial magnetic permeability B, 5: saturation magnetic flux density (magnetic flux density at magnetizing force 1500e) Br: residual magnetic flux density Hc: coercive force P: specific resistance.
なお主成分はいずれも酸化第二鉄（Ｆｅ２Ｏ３）が５２
．０モルチー酸化マンガン（ＭｎＯ）が３４．５モル係
及び酸化亜鉛（ＺｎＯ）が１３．５モル多含有している
。The main component in both cases is ferric oxide (Fe2O3).
．． It contains 34.5 moles of manganese oxide (MnO) and 13.5 moles of zinc oxide (ZnO).
第１表よシ明らかな如く本発明の屋１の組成を持つ材料
はスイッチング電源用磁芯材料として求められる緒特性
２例えば初透磁率μｉが２０００以上、飽和磁束密度が
約５０００Ｇ及び残留磁束密度Ｂｒが１５００Ｇ以下と
いう特性を十分に満たしている。As is clear from Table 1, the material having composition 1 of the present invention has characteristics 2 required as a magnetic core material for switching power supplies, such as initial permeability μi of 2000 or more, saturation magnetic flux density of about 5000 G, and residual magnetic flux density. It satisfies the characteristic that Br is 1500G or less.
又二酸化ジルコニウム（ＺｒＯ２）を添加することによ
シ従来の材料＆２と比較し、固有抵抗が１０倍以上と大
幅に向上している。Also, by adding zirconium dioxide (ZrO2), the specific resistance is significantly improved by more than 10 times compared to the conventional material &2.
以上のことよシ、添加物二酸化ゾルコニウム（Ｚｒ０７
）はスイッチング電源用磁芯材料として求められる鉄損
、飽和磁束密度、残留磁束密度等の特性を十分に満たし
１周波数が１００ ｋＨｚ以上にお込て電力損失Ｐ、を
９例えば約０．０９重量食上酸化ジルコニウム（ＺｒＯ
２）を添加した場合、添加しない場合に比較して温度６
０℃で約２０％改善できることがわかる。That being said, the additive zolconium dioxide (Zr07
) fully satisfies the characteristics such as iron loss, saturation magnetic flux density, and residual magnetic flux density required as a magnetic core material for switching power supplies, and reduces the power loss P at a frequency of 100 kHz or more by 9, for example, approximately 0.09 weight. Edible zirconium oxide (ZrO
When 2) is added, the temperature is lower than when it is not added.
It can be seen that the temperature can be improved by about 20% at 0°C.
以上の説明で明らかな様に０．１５重重量板下の二酸化
ジルコニウム（ＺｒＯ２）ｔ−添加することによシ、ス
イッチング電源用材料として求められる緒特性を十分に
満足するとともに周波数が１００ ｋＨｚ以上の高周波
において、従来のものよシミ力損失を低減できる低損失
酸化物磁性材料を提供できる。As is clear from the above explanation, by adding 0.15 t-weight of zirconium dioxide (ZrO2), it is possible to fully satisfy the characteristics required as a material for switching power supplies, and at the same time, the frequency can be increased to 100 kHz or higher. At high frequencies, it is possible to provide a low-loss oxide magnetic material that can reduce stain force loss compared to conventional materials.
第１図は二酸化ジルコニウム（ＺｒＯ７）の添加量をＡ
？ラメータとしたときの室温附近における温度と鉄心の
電力損失の関係を示す。
鉄心損失Ｐｓ （Ｋｗ／ｍＱFigure 1 shows the amount of zirconium dioxide (ZrO7) added.
? This figure shows the relationship between temperature and core power loss near room temperature when expressed as a parameter. Core loss Ps (Kw/mQ
Claims (1)
ＭｎＯ）、１０〜１５モル％の酸化亜鉛（ＺｎＯ）及び
残分として酸化第二鉄（Ｆｅ＿２Ｏ＿３）を含み、副成
分として０．０４〜０．１０重量％の酸化カルシウム（
ＣａＯ）と０．０１５〜０．１００重量％の二酸化ケイ
素（ＳｉＯ＿２）を含む低損失酸化物磁性材料において
、０．１５重量％以下（０％を含まず）の二酸化ジルコ
ニウム（ＺｒＯ＿２）を添加したことを特徴とする低損
失酸化物磁性材料。1. 30 to 37 mol% manganese monoxide as the main component (
Contains 10-15 mol% zinc oxide (ZnO) and ferric oxide (Fe_2O_3) as a balance, and 0.04-0.10 wt% calcium oxide (MnO) as a subcomponent.
CaO) and 0.015 to 0.100 wt% silicon dioxide (SiO_2) in a low-loss oxide magnetic material containing 0.15 wt% or less (excluding 0%) of zirconium dioxide (ZrO_2). A low-loss oxide magnetic material characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61295768A JPS63151620A (en) | 1986-12-13 | 1986-12-13 | Oxide magnetic material having low loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61295768A JPS63151620A (en) | 1986-12-13 | 1986-12-13 | Oxide magnetic material having low loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63151620A true JPS63151620A (en) | 1988-06-24 |
Family
ID=17824916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61295768A Pending JPS63151620A (en) | 1986-12-13 | 1986-12-13 | Oxide magnetic material having low loss |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63151620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0254902A (en) * | 1988-08-19 | 1990-02-23 | Sony Corp | Low-loss ferrite |
| WO1991010241A1 (en) * | 1989-12-26 | 1991-07-11 | Tokin Corporation | Low-loss oxide magnetic material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262404A (en) * | 1984-06-11 | 1985-12-25 | Sumitomo Special Metals Co Ltd | Manufacture of mn-zn ferrite |
-
1986
- 1986-12-13 JP JP61295768A patent/JPS63151620A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262404A (en) * | 1984-06-11 | 1985-12-25 | Sumitomo Special Metals Co Ltd | Manufacture of mn-zn ferrite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0254902A (en) * | 1988-08-19 | 1990-02-23 | Sony Corp | Low-loss ferrite |
| WO1991010241A1 (en) * | 1989-12-26 | 1991-07-11 | Tokin Corporation | Low-loss oxide magnetic material |
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