JPH03163804A - Low loss oxide magnetic substance - Google Patents
Low loss oxide magnetic substanceInfo
- Publication number
- JPH03163804A JPH03163804A JP1303673A JP30367389A JPH03163804A JP H03163804 A JPH03163804 A JP H03163804A JP 1303673 A JP1303673 A JP 1303673A JP 30367389 A JP30367389 A JP 30367389A JP H03163804 A JPH03163804 A JP H03163804A
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- loss
- less
- oxide magnetic
- weight
- 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
- 239000000126 substance Substances 0.000 title abstract 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 14
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 239000000696 magnetic material Substances 0.000 claims description 22
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- 239000013078 crystal Substances 0.000 abstract description 7
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract 4
- 239000006104 solid solution Substances 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 239000011162 core material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000002301 combined effect Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
イ．発明の目的
〔産業上の利川分野〕
本允明は、電子機器川スイッチング電源等に高周波で用
いる、主としてｌ・ランス用のコア相料である低損失酸
化物磁性材料に関し、特に主成分として３０〜４０モル
％の−酸化マンカン（ＭｎＯ）、５〜１５モル％の酸化
亜鉛（ＺｎＯ）、及び残分として酸化第２鉄（Ｆｅ２０
３）を含み、副成分として０２Ｏ２〜０、１５重量％の
酸化カルシウム（ＣａＯ）、及び０． ００５〜０．
１００重量％の酸化ケイ素（ＳｉＯ２）を含む低損失酸
化物磁性相料の改良に関するものである。[Detailed description of the invention] a. Purpose of the invention [Industrial field] Masaaki Motomoto relates to a low-loss oxide magnetic material that is used at high frequencies in switching power supplies for electronic devices, etc., and is mainly used as a core phase material for lances. ~40 mol% -mancan oxide (MnO), 5-15 mol% zinc oxide (ZnO), and the balance ferric oxide (Fe20).
3) and 02O2~0, 15% by weight of calcium oxide (CaO) as accessory components, and 0.3% by weight of calcium oxide (CaO). 005~0.
The present invention relates to an improvement in a low-loss oxide magnetic phase material containing 100% by weight of silicon oxide (SiO2).
酸化物磁性拐料であるマンガンー亜鉛系フェライ１・は
、各種通信機器、民生用機器などの１・ランス及びコイ
ル用のコア材料として多用されているが、従来スイッチ
ング電源用の１・ランスにおいては、スイッチング周波
数として丸１１ら１０〜１００ｋＨｚ程度のものが使用
されており、これにヌ・］応すべき低指失酸化物磁性材
料として主成分が３０〜４０モル％のＭｎＯ、２
５〜１５モル％のＺｎＯ、残分がＦｅ２０３を含み、副
成分として０２Ｏ２ 〜０．１５重量％のＣａＯ、０２
Ｏ０５〜０．１００重量％のＳｉｎ２を含むものがすで
に開発されている。Manganese-zinc-based ferrite 1, which is an oxide magnetic material, is often used as a core material for lances and coils in various communications equipment and consumer equipment, but it has not been used in conventional lances for switching power supplies. , a switching frequency of about 10 to 100 kHz is used, and as a low-finger-loss oxide magnetic material that is suitable for this, MnO, whose main component is 30 to 40 mol %, 25 to 15 mol% ZnO, the balance contains Fe203, 02O2 to 0.15 wt% CaO as subcomponents, 02
Those containing 005 to 0.100% by weight of Sin2 have already been developed.
しかし、近年、スイッチング電源を小型、軽量化するた
めに、スイッチング周波数を１００ｋＨｚ以．４一の高
周波で使用する傾向が強まりつつあり、その［］的にあ
う性能の１・ランス用コア拐料としての低損失酸化物磁
性材料が要求されている，，一方、上述の如き従来の成
分を有する低］｛１失酸化物磁性材料を、スイッチング
周波数が１００ｋＨｚ以上のスイッチング電源用の変圧
器のコア椙料として使用すると、その鉄損による電力損
失（Ｐｎ［ｋＷ／ｍ３］）が大きく、これによる発熱の
ため許容温境以上に温度が上昇し、１〜ランス自体やそ
の周辺の部品を損ない使用に耐えないという欠点があっ
た。However, in recent years, in order to make switching power supplies smaller and lighter, the switching frequency has been increased to 100kHz or higher. There is a growing trend for high-frequency use of 4-1 lances, and there is a demand for low-loss oxide magnetic materials as core fillers for 1-lance lances with performance that meets this trend.On the other hand, the conventional When a magnetic material with a low [low] {1 lost oxide component is used as a core material for a transformer for a switching power supply with a switching frequency of 100 kHz or more, the power loss (Pn [kW/m3]) due to iron loss is large. Due to the heat generated by this, the temperature rises above the allowable temperature range, which causes damage to the lance itself and its surrounding parts, making it unusable.
そこで、本発明の課題は、周波数が１００ｋＨＺ以］−
．の高い周波数において使用しても、鉄損が小さく、従
って電力損失が小さく、発熱を許容温度以−ドに抑え得
て実用に供し得るを低損失酸化物磁性材料を提供するこ
とにある。Therefore, the problem of the present invention is to
．． It is an object of the present invention to provide a low-loss oxide magnetic material which has a small core loss, therefore a small power loss, and can suppress heat generation to a permissible temperature or lower even when used at high frequencies, and which can be put to practical use.
口．発明の構成
〔課題を解決するための千段〕
本発明は、既に開允された主成分及び副成分を含む従来
の低損失酸化物磁性材料に、さらに他の成分の酸化物を
添加せしめることにより、１００ｋＨｚ以１二の鉄損を
従来より−層低減した低損失酸化物磁性材料を得るもの
である。mouth. Structure of the Invention [A Thousand Steps to Solve the Problem] The present invention involves adding an oxide of another component to a conventional low-loss oxide magnetic material containing a main component and a subcomponent that have already been developed. As a result, a low-loss oxide magnetic material with iron loss below 100 kHz that is 12 times lower than that of the conventional material is obtained.
即ち本発明はき酸化物粉末を混合・成形・焼成してなる
酸化物磁性材料の主成分として、３０〜４０モル％の一
化マンガン（ＭｎＯ）、５〜１５モル％の酸化亜鉛（Ｚ
ｎＯ）、及び残分として酸化第２鉄（Ｆｅ，Ｏ→を含み
、副成分として０２Ｏ２〜０．１５重量％の酸化カルシ
ウム（ＣａＯ）、及び０． ００５ 〜０． １００重
量％の酸化ケイ素（ＳｉＯ２）を含む低損失酸化物磁性
材料において、さらに０．３０重量％以１ク《０％を含
まず）の二酸化ジルコニウム（ＺｒＯ，）、０．５０重
量％以下（Ｏ％を含まず）の一ミ１唆化アルミニウム（
Ａ１．Ｏ．）、及び０、３０．’Ｒ−！ｉ’；％以下（
Ｏ％を含まず）の二酸化チタン（ＴｉＯ２）を添加した
ことを特徴とする低損失酸化物磁性材料である。That is, the main components of the oxide magnetic material prepared by mixing, molding, and firing the oxide powder of the present invention include 30 to 40 mol% manganese monide (MnO) and 5 to 15 mol% zinc oxide (Z).
nO), and ferric oxide (Fe, O→) as the remainder, calcium oxide (CaO) in the amount of 02O2 to 0.15% by weight as subcomponents, and silicon oxide (0.005 to 0.100% by weight) In the low-loss oxide magnetic material containing 0.30% by weight or more (excluding 0%) of zirconium dioxide (ZrO,), and 0.50% by weight or less (not including 0%) of zirconium dioxide (ZrO,), Aluminum
A1. O. ), and 0, 30. 'R-! i'; % or less (
This is a low-loss oxide magnetic material characterized by the addition of titanium dioxide (TiO2) (not containing 0%).
本発明は、従来の低損失酸化物磁性相料に、二酸化ジル
コニウム（ＺｒＯ２）、三酸化アルミニウｌえ（Ａｈ，
０３）．及び二酸化チタン（ＴｉＯ２）を種々の割合で
添加した一連の実験を詳しく行なった結果、−ヒ記成分
範囲に添加した材料に於て、１００ｋＨＺ以１−．の鉄
損を減じて電力損失を低減した低損失酸化物磁性材料が
得られたものである。The present invention adds zirconium dioxide (ZrO2), aluminum trioxide (Ah,
03). As a result of a detailed series of experiments in which titanium dioxide (TiO2) and titanium dioxide (TiO2) were added in various proportions, it was found that -1-. The result is a low-loss oxide magnetic material that reduces iron loss and power loss.
添加物ｚｒ０２は、低損失酸化物磁性材料組織の粒界に
析出し、粒界の固有抵抗を増加させ、又添加物Ａ１２０
３及びＴｌ０２は結晶内に固溶し、結晶内部の固右抵抗
を増加させる働きがあると考えられ、さらに添加物Ａｌ
２０３は結晶組織を均一にする作用があると考えられる
。The additive zr02 precipitates at the grain boundaries of the low-loss oxide magnetic material structure, increases the specific resistance of the grain boundaries, and also increases the resistivity of the grain boundaries.
It is thought that 3 and Tl02 are dissolved in the crystal and have the function of increasing the solid resistance inside the crystal.
It is thought that 203 has the effect of making the crystal structure uniform.
これらの複合作用によって、これらを添加した低損失酸
化物磁性材料は、その組織内部の電磁気特性が均一化す
ると共に組織全体の比抵抗ρが一屑増大し、これによー
〕て鉄損に関係する渦電流損が減少し電力損失が減少し
たものと考えられる。Due to these combined effects, the electromagnetic properties inside the structure of the low-loss oxide magnetic material to which they are added become uniform, and the resistivity ρ of the entire structure increases by a small amount, thereby reducing the iron loss. This is thought to be due to the reduction in eddy current loss and the reduction in power loss.
電力損失の減少により高周波における発熱が抑え５
られる．．
実際に−Ｌ記本発明の添加成分範囲内外近傍の低損失酸
化物磁性材料について詳細に実験を行い、試料について
評価したところ、従来の前記成分の低損失酸化物磁性材
料に比べ、例えばＺｒ（ｈ ０．１０重量％、Ａｌ２０
３ ０２Ｏ５重量％、ＴｉＯ２０２Ｏ５重量％を添加し
た低損失酸化物磁性材料は、比抵抗ρが１０倍以上あり
、２００ｋＨｚにおける車力損失が゛］′−分以ドであ
ることが確認された，，
〔実施例〕
以下に本発明の実施例及び比較例について、実験した内
容を詳しく説明する。By reducing power loss, heat generation at high frequencies is suppressed5. ．． In fact, detailed experiments were conducted on low-loss oxide magnetic materials with additive components within and near the range of the additive components of the present invention described in -L, and samples were evaluated. h 0.10% by weight, Al20
3 It was confirmed that the low-loss oxide magnetic material containing 5% by weight of O2O and 5% by weight of TiO202O has a specific resistance ρ of 10 times or more, and a vehicle power loss at 200kHz of less than ゛]'-min. [Example] Below, details of experiments conducted in Examples and Comparative Examples of the present invention will be described in detail.
酸化物粉末を混合・成形・焼成してなる酸化物磁性材料
の主成分として、５３２Ｏモル％の酸化第２鉄（Ｆｅ２
０：＋）、３６２Ｏ−Ｅル％の一化マンガン（ＭｎＯ）
、及び１１２Ｏモル％の酸化亜鉛（ＺｎＯ）の標準威分
を含有し、副成分として二酸化ケイ素（ＳｉＯ， ）、
酸化カルシウム（ＣａＯ）を従来の低損失酸化物磁性相
料の成分範囲で含有し、さらに二酸化ジルコニウム（Ｚ
ｒＯ２）、二酸化アルミニウム（Ａｌ，，２Ｏ→、及び
Ｌ酸化チタン６
（ＴｉＯ．＝）を複合添加した複数の本実施例の低損失
酸化物磁性拐料の試料を各種試作した。さらに後者の３
つの酸化物を添加しない従来の比較例、及び後者の３つ
の酸化物を単独又は複合添加した複数の他の比較例の低
損失酸化物磁性材料の試料を試作した。それぞれの酸化
物原料を所定成分量添加混合し、造粒し、成形プレスし
た後、窒素ガス雰囲気中において酸素分）３Ｅ ５．
０ａｔ％以下、１３００〜１４００゜Ｃの温度で焼結し
て本実施例及び比較例の試料を得た。Ferric oxide (Fe2
0:+), 362O-Ele% manganese monoxide (MnO)
, and a standard content of zinc oxide (ZnO) of 1120 mol %, and silicon dioxide (SiO, ) as an accessory component.
Contains calcium oxide (CaO) within the range of conventional low-loss oxide magnetic phase materials, and further contains zirconium dioxide (Z
Various samples of the low-loss oxide magnetic particles of this example were prepared in which multiple amounts of aluminum dioxide (Al, 2O→, and L titanium oxide 6 (TiO.=) were added.
Samples of low-loss oxide magnetic materials were prototyped, including a conventional comparative example in which the three oxides were not added, and a plurality of other comparative examples in which the latter three oxides were added singly or in combination. After adding and mixing each oxide raw material in a predetermined amount, granulating it, and pressing it, the oxygen content (oxygen content) 3E 5.
Samples of this example and comparative example were obtained by sintering at a temperature of 1,300 to 1,400°C at a temperature of 0 at% or less.
第１表は試作した本実施例の試料Ｎｏ． ５〜１０、Ｎ
ｏ．１２〜１４、Ｎｏ．１６ 〜１８、Ｎｏ．２０ 〜
２１と、従来の比較例の試料Ｎｏ． １、及びその他の
比較例の試料Ｎｏ．２〜４，１１， １５． １９につ
いて、それぞれの副成分及び添加成分の含有量と、周波
数２００ｋＨｚ、最大磁束密度Ｂｍが１０００Ｇの場合
の電力損失ＰＨの試料温度に対する埴小値を示したもの
である。Table 1 shows the sample No. of the prototype of this example. 5-10, N
o. 12-14, No. 16 to 18, No. 20 ~
21, and sample No. 21 of the conventional comparative example. 1, and other comparative example sample No. 2-4, 11, 15. For No. 19, the content of each subcomponent and additive component, and the small value of the power loss PH with respect to the sample temperature when the frequency is 200 kHz and the maximum magnetic flux density Bm is 1000 G are shown.
以下余白
第
１
表
第１表によれば、二酸化ジルコニウム（ＺｒＯ２），二
酸化アルミニウム（Ａｌ２０．，）、及び二酸化チタン
（ＴｉＯ２）の複合添加によって、従来の比較例の試料
Ｎｏ．１より電力損失が減少していることがわかる。Table 1 below: Margin 1 According to Table 1, by the combined addition of zirconium dioxide (ZrO2), aluminum dioxide (Al20.), and titanium dioxide (TiO2), sample No. It can be seen that the power loss is reduced compared to 1.
これは、これらの添加物が低損失酸化物磁＝ｌ’ｌ：
４Ｚ料組織内部において、ＺｒＯ２が組織の粒界に折出
して粒界の固有抵抗を増大させ、Ａｌ２０：．及びＴｉ
０２が結品内に固溶してその固有抵抗を増大させ、さ１
゛，にＡ１２０３が結晶組織を均−にする効果があった
と考えられ、これらの複合作用によって、組織内部の電
磁気特性の均一化と組織全体の比抵抗を増大せしめ、こ
れによって鉄損を減少せしめ電力損を減少せしめたもの
と考えられる。This means that these additives create a low-loss oxide magnet = l'l:
Inside the 4Z material structure, ZrO2 is precipitated to the grain boundaries of the structure, increasing the specific resistance of the grain boundaries, and Al20:. and Ti
02 solidly dissolves in the crystal, increasing its resistivity, and
It is thought that A1203 had the effect of leveling the crystal structure, and the combined effect of these effects made the electromagnetic properties inside the structure uniform and increased the resistivity of the entire structure, thereby reducing iron loss. This is thought to have reduced power loss.
二酸化ジルコニウム（ＺｒＯ２）を０．４０重量％添加
した試料Ｎｏ． １１．二酸化アルミニウム（Ａｌ．，
０３）を０．６０重量％添加した試料Ｎｏ．１５、及び
二酸化チタン（ＴｉＯ２）を０２Ｏ４０重量％添加した
試料Ｎｏ． １９にツイては、異常粒の成長が認められ
、そのため電力損失が大きくなったと考えられ、それぞ
れの添加成分含有量はこの値以下の量が良好であること
が判る。Sample No. 0.40% by weight of zirconium dioxide (ZrO2) was added. 11. Aluminum dioxide (Al.,
Sample No. 03) was added in an amount of 0.60% by weight. Sample No. 15, and Sample No. 1 to which 40% by weight of titanium dioxide (TiO2) was added. In No. 19, abnormal grain growth was observed, which is thought to have increased the power loss, and it can be seen that the content of each additive component below this value is good.
９
又これらの添加成分の中の２つがＯ％である試料Ｎｏ．
２、Ｎｏ． ３、及びＮｏ．４においても電力損失が比
較的大きく、効果が少ないことが判る，１第２表は、本
実施例の試料Ｎｏ． ８と、従来の比較例の試料Ｎｏ．
１との低損失酸化物磁性材料について、初透磁率μ、
飽和磁束密度Ｂｌ，、残留磁束密度Ｂｒ、及び比抵抗ρ
の各電磁気特性についての比較を示したものである。9 Sample No. 9 in which two of these additive components were 0%.
2.No. 3, and no. It can be seen that the power loss is relatively large in Sample No. 4, and the effect is small. 8, and sample No. 8 of the conventional comparative example.
For low-loss oxide magnetic materials with 1, the initial permeability μ,
Saturation magnetic flux density Bl, residual magnetic flux density Br, and specific resistance ρ
This shows a comparison of each electromagnetic characteristic.
第２表
第２表の実施例の試料Ｎｏ． ８と、比較例の試料Ｎｏ
．１とについての各電磁気特性の比鮫を見ると、試料Ｎ
ｏ．８は比抵抗が約１０倍以上となっており、これによ
り渦電流損による鉄損が減少し、電力損失を減少してい
ることが理解される。又、磁気特性はそれぞれほぼ同一
であり、この種の１・ランス川コア１０
材料として優れていることが判る。Table 2 Sample No. of Examples in Table 2 8 and Comparative Example Sample No.
．． Looking at the comparison of each electromagnetic characteristic for sample N
o. No. 8 has a specific resistance of about 10 times or more, and it is understood that this reduces iron loss due to eddy current loss and reduces power loss. Moreover, the magnetic properties are almost the same, and it can be seen that these materials are excellent as this type of material.
以上のことから、本発明の実施例によれば、２００ｋＨ
ｚに於ける電力損失が大幅に低減されて、１００ｋＨｚ
以上に於けるスイッチング電源用トランスのコア材料ど
して極めて優れた低損失酸化物磁性相料が得られること
が確認された。From the above, according to the embodiment of the present invention, 200kHz
100kHz with significantly reduced power loss at
It has been confirmed that an extremely excellent low-loss oxide magnetic phase material can be obtained as a core material for a transformer for a switching power supply.
ハ．允明の効果
〔発明の効果〕
以上に説１９Ｊシた如く、本発明によれば、スイッチン
グ電源用の１・ランス用コア拐料として求められる諸特
性を十分に満足するとともに、１００ｋＨｚ以上の周波
数において電力損失を大幅に低減できる低損失酸化物磁
性材料を提供することが出来る。C. Effects of the Invention [Effects of the Invention] As described above in Theory 19J, the present invention satisfies the various characteristics required as a core material for a lance for a switching power supply, and also provides a material with a frequency of 100 kHz or more. It is possible to provide a low-loss oxide magnetic material that can significantly reduce power loss.
Claims (1)
材料の主成分として、３０〜４０モル％の一化マンガン
（ＭｎＯ）、５〜１５モル％の酸化亜鉛（ＺｎＯ）、及
び残分として酸化第２鉄（Ｆｅ＿２Ｏ＿３）を含み、副
成分として０．０２〜０．１５重量％の酸化カルシウム
（ＣａＯ）、及び０．００５〜０．１００重量％の酸化
ケイ素（ＳｉＯ＿２）を含む低損失酸化物磁性材料にお
いて、さらに０．３０重量％以下（０％を含まず）の二
酸化ジルコニウム（ＺｒＯ＿２）、０．５０重量％以下
（０％を含まず）の三酸化アルミニウム（Ａｌ＿２Ｏ＿
３）、及び０．３０重量％以下（０％を含まず）の二酸
化チタン（ＴｉＯ＿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. The main components of the oxide magnetic material obtained by mixing, molding, and firing oxide powders are 30 to 40 mol% manganese monide (MnO), 5 to 15 mol% zinc oxide (ZnO), and the remainder. Low-loss oxidation containing ferric oxide (Fe_2O_3) and 0.02-0.15% by weight of calcium oxide (CaO) and 0.005-0.100% by weight of silicon oxide (SiO_2) as secondary components. In the magnetic material, 0.30% by weight or less (excluding 0%) of zirconium dioxide (ZrO_2) and 0.50% by weight or less (not including 0%) of aluminum trioxide (Al_2O_
3), and a low-loss oxide magnetic material characterized by adding 0.30% by weight or less (excluding 0%) of titanium dioxide (TiO_2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1303673A JP2562061B2 (en) | 1989-11-22 | 1989-11-22 | Low loss oxide magnetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1303673A JP2562061B2 (en) | 1989-11-22 | 1989-11-22 | Low loss oxide magnetic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03163804A true JPH03163804A (en) | 1991-07-15 |
| JP2562061B2 JP2562061B2 (en) | 1996-12-11 |
Family
ID=17923853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1303673A Expired - Lifetime JP2562061B2 (en) | 1989-11-22 | 1989-11-22 | Low loss oxide magnetic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562061B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627103B2 (en) | 2000-03-31 | 2003-09-30 | Tdk Corporation | Mn-Zn ferrite production process, Mn-Zn ferrite, and ferrite core for power supplies |
| CN104045337A (en) * | 2014-06-24 | 2014-09-17 | 铜陵三佳变压器有限责任公司 | Vanadium-based ferrite core material for transformer |
| CN105023691A (en) * | 2015-07-23 | 2015-11-04 | 南通保来利轴承有限公司 | Iron oxide based anti-electromagnetic interference magnet material and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58115027A (en) * | 1981-12-28 | 1983-07-08 | Tadayoshi Karasawa | Oxide magnetic material and preparation thereof |
| JPS63158811A (en) * | 1987-12-11 | 1988-07-01 | Tadayoshi Karasawa | Manufacture of oxide ferromagnetic material |
-
1989
- 1989-11-22 JP JP1303673A patent/JP2562061B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58115027A (en) * | 1981-12-28 | 1983-07-08 | Tadayoshi Karasawa | Oxide magnetic material and preparation thereof |
| JPS63158811A (en) * | 1987-12-11 | 1988-07-01 | Tadayoshi Karasawa | Manufacture of oxide ferromagnetic material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6627103B2 (en) | 2000-03-31 | 2003-09-30 | Tdk Corporation | Mn-Zn ferrite production process, Mn-Zn ferrite, and ferrite core for power supplies |
| CN104045337A (en) * | 2014-06-24 | 2014-09-17 | 铜陵三佳变压器有限责任公司 | Vanadium-based ferrite core material for transformer |
| CN105023691A (en) * | 2015-07-23 | 2015-11-04 | 南通保来利轴承有限公司 | Iron oxide based anti-electromagnetic interference magnet material and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2562061B2 (en) | 1996-12-11 |
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