[go: up one dir, main page]

WO2006068136A1 - POUDRE MAGNETIQUE TENDRE METALLIQUE PLATE A BASE DE Fe-Ni-Mo, REVETUE D'UNE PELLICULE D'OXYDE ET AYANT UNE RUGOSITE DE SURFACE ELEVEE, ET PROCEDE POUR LA PRODUIRE - Google Patents

POUDRE MAGNETIQUE TENDRE METALLIQUE PLATE A BASE DE Fe-Ni-Mo, REVETUE D'UNE PELLICULE D'OXYDE ET AYANT UNE RUGOSITE DE SURFACE ELEVEE, ET PROCEDE POUR LA PRODUIRE Download PDF

Info

Publication number
WO2006068136A1
WO2006068136A1 PCT/JP2005/023359 JP2005023359W WO2006068136A1 WO 2006068136 A1 WO2006068136 A1 WO 2006068136A1 JP 2005023359 W JP2005023359 W JP 2005023359W WO 2006068136 A1 WO2006068136 A1 WO 2006068136A1
Authority
WO
WIPO (PCT)
Prior art keywords
soft magnetic
magnetic powder
flat metal
metal soft
based flat
Prior art date
Application number
PCT/JP2005/023359
Other languages
English (en)
Japanese (ja)
Inventor
Gakuji Uozumi
Ryoji Nakayama
Original Assignee
Mitsubishi Materials Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corporation filed Critical Mitsubishi Materials Corporation
Publication of WO2006068136A1 publication Critical patent/WO2006068136A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • H01F1/14733—Fe-Ni based alloys in the form of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/068—Flake-like particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/16—Metallic particles coated with a non-metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/33—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin

Definitions

  • Fe-Ni-Mo-based flat metal soft magnetic powder with high surface roughness and its production method Fe-Ni-Mo-based flat metal soft magnetic powder with high surface roughness and its production method
  • the present invention relates to an oxide having a high surface roughness used for a high frequency magnetic material such as a radio wave absorber having excellent radio wave absorption characteristics and an antenna core for radio communication having excellent magnetic characteristics.
  • the present invention relates to a film-coated Fe—Ni—Mo-based flat metal soft magnetic powder and a method for producing the same.
  • the present invention also provides a magnetic film having a high resistivity and a low coercive force, in which the acid-coating-coated Fe—Ni—Mo flat metal soft magnetic powder having a high surface roughness is oriented and dispersed in a resin. Relates to a composite sheet.
  • Mo permalloy Fe—79% Ni—4% Mo
  • Mo—Fe—Ni—Mo based soft such as single permalloy (Fe—79% Ni—5% Mo).
  • Magnetic powders are known. Even if these materials are gradually cooled after heat treatment with Mo additive, the formation of FeNi ordered phase
  • the crystal magnetic anisotropy constant ⁇ is around zero even without quenching after heat treatment, and it exhibits excellent permeability even in polycrystalline materials that are isotropic in terms of crystal orientation.
  • High permeability soft magnetic materials are also known in which Cu, Cr and Mn are added in addition to Mo in order to further improve the permeability.
  • the Fe-Ni-Mo soft magnetic powder is often used in a flat shape.
  • Patent Document 1 describes the composition of Fe—70 to 83% Ni—2 to 6% Mo—3 to 6% Cu—1 to 2% ⁇ in terms of mass% (hereinafter, “%” represents mass%).
  • a flat metal soft magnetic powder having an average particle size of 0.1 to 30 m and an average thickness of 2 m or less is described, and the flat metal soft magnetic powder is used for a magnetic shield. Is described.
  • Patent Document 2 has a composition of Fe-40 to 80% Ni—2 to 6% Mo, a thickness of 1 to 5 ⁇ m, and a ratio of thickness to length of 1: 5 to 200.
  • Flat flaky soft magnetic powder is described In addition, it is described that this flat flake-like soft magnetic powder is used for a marking body such as a road surface.
  • Patent Document 3 has a composition of Fe-60 to 80% N or Fe-60 to 80% Ni— 5% or less, and has a flake thickness of 30 ⁇ m or less and a flake diameter of 50 to 50%.
  • a flat metal soft magnetic powder having 2000 ⁇ m is described, and this flat metal soft magnetic powder is described as being used as a magnetic material for high frequency.
  • These conventional Fe-Ni-Mo-based flat metal soft magnetic powders are all made by adding ethanol or water as a solvent to Fe-Ni-Mo-based powders obtained by ordinary pulverization or atomization. According to this, it is manufactured by adding a grinding aid and subjecting them to a flat wrinkle treatment using an attritor or a ball mill.
  • the Fe-Ni-Mo-based flat metal soft magnetic powder produced in this way is dispersed in the resin so that the flat surface is oriented in a direction perpendicular to the thickness direction of the magnetic composite sheet.
  • a high-frequency magnetic material such as a radio wave absorber having radio wave absorption characteristics at several tens of MHz to several GHz, or an antenna core for wireless communication having magnetic characteristics at several tens of kHz to several ⁇ . Is also known.
  • Patent Document 1 Japanese Patent Laid-Open No. 3-223401
  • Patent Document 2 JP-A-3-232574
  • Patent Document 3 Japanese Patent Laid-Open No. 4-78112
  • Patent Document 4 Japanese Patent Laid-Open No. 4-213803
  • Fe-Ni-Mo-based flat metal soft magnetic powders have relatively good corrosion resistance, they must be heated in an oxidizing atmosphere and at a relatively high temperature of 300 to 400 ° C! /.
  • Fe—Ni—Mo flat metal soft magnetic powder is heated at a high temperature, NiO with a low resistivity is formed as an acid film. Therefore, it is necessary to increase the thickness of the NiO oxide film necessary to maintain the insulation, and the Fe—Ni—Mo flat metal soft magnetic powder formed with this thick NiO has a coercive force. Increase significantly.
  • a composite magnetic sheet prepared by using an Fe—Ni—Mo-based flat metal soft magnetic powder having a high coercive force is not preferable because the characteristics as a radio wave absorber and a magnetic material for high frequency are greatly deteriorated.
  • the present invention has been made in view of the above circumstances, and is used for a high-frequency magnetic material such as a radio wave absorber having excellent radio wave absorption characteristics and an antenna core for wireless communication having excellent magnetic characteristics.
  • An object of the present invention is to provide an Fe-Ni-Mo-based flat metal soft magnetic powder having a high surface roughness.
  • the present inventors produced an Fe-Ni-Mo-based flat metal soft magnetic powder in which an Fe-Ni-Mo-based flat metal soft magnetic powder was coated with an acid-coating film on the surface. And this acid coating We conducted research to obtain high-resistivity and low-coercivity magnetic composite sheets with excellent characteristics as radio wave absorbers or high-frequency magnetic materials using coated Fe-Ni-Mo-based flat metal soft magnetic powders. As a result, the following (A) to (D) were discovered for the first time.
  • an ordinary Fe-Ni-Mo-based flat metal soft magnetic powder is boiled in water (more preferably distilled water)
  • an oxide film having a high resistivity is formed on the surface of the Fe-Ni-Mo-based flat metal soft magnetic powder.
  • the specific surface area obtained by calculation of Ni—Mo-based flat metal soft magnetic powder is SI and the proportionality coefficient obtained by dividing SR by SI is k
  • the proportionality factor k which is obtained by dividing the specific surface area of the Fe-Ni-Mo flat metal soft magnetic powder coated with an oxide film by heating in a normal oxidizing atmosphere such as the atmosphere by SI, must exceed 8. Hana was strong. Therefore, the proportional coefficient k of the acid-coating-coated Fe-Ni-Mo-based flat metal soft magnetic powder obtained by boiling in water (more preferably distilled water) must be heated in the atmosphere. Oxide-coated Fe-Ni-Mo-based flattened by the conventional method The surface roughness of the metal soft magnetic powder is the same as the surface of the normal acid film-coated Fe—Ni — Mo flat metal soft magnetic powder obtained by heating in a normal acid atmosphere such as the atmosphere.
  • the oxide film formed on the surface of the Fe—Ni—Mo-based flat metal soft magnetic powder obtained by boiling is represented by the composition formula: Ni Fe O (where 0 ⁇ x ⁇ 3), This oxide film
  • Fe-Ni-Mo-based flat metal soft magnetic powders with an oxidized film are heated at a relatively low temperature because the boiling temperature is around 100 ° C. ⁇
  • the thickness of the film can be made smaller than that of the NiO oxide film, so that the coercivity of the Fe-Ni-Mo-based flat metal soft magnetic powder is not increased during the manufacturing process.
  • the Fe-Ni-Mo-based flat metal soft magnetic powder for producing an acid-coating-coated Fe-Ni-Mo-based flat metal soft magnetic powder having a high surface roughness obtained by boiling is , Ni: 60-90%, Mo: 0.05-: L 95% contained, the remainder: more preferably having a component composition consisting of Fe and inevitable impurities, etc. .
  • Average particle size 30 to 150 ⁇ m and aspect ratio (average particle size Z average thickness): High surface roughness on the surface of Fe-Ni-Mo based flat metal soft magnetic powder of 5 to 500 An oxide film coated Fe-Ni-Mo flat metal soft magnetic powder with high surface roughness formed with an oxide film coating,
  • the ratio table area of the above-mentioned Fe-Ni-Mo-based flat metal soft magnetic powder coated with an oxide film having a high surface roughness is SR
  • the acid-coating-coated Fe—Ni—Mo-based flat metal soft magnetic powder is in% by mass (hereinafter,% indicates% by mass), Ni: 60 to 90%, Mo: 0.05 to The above (1), wherein the powder is formed by forming an oxide film on the surface of a Fe-Ni-Mo-based flat metal soft magnetic powder containing 95% L and the balance: Fe and an inevitable impurity component composition.
  • the acid film formed on the surface of the Fe-Ni-Mo-based flat metal soft magnetic powder is: Ni Fe O (where 0 ⁇ x ⁇ 3), which has the high surface roughness described in (1) or (2) 3 4
  • Average particle diameter 30 to 150 ⁇ m and aspect ratio (average particle diameter Z average thickness): 5 to 500, and in mass% (hereinafter,% represents mass%) Ni: 60 to 90%, Mo: 0.05-: L 95%, the remainder: Fe and Ni—Mo-based flat metal soft magnetic powder having a component composition that also has inevitable impurity power is boiled in water (1) or The method for producing an oxide film-coated Fe—Ni—Mo-based flat metal soft magnetic powder having a high surface roughness described in (2) or (3) is preferred.
  • the time for boiling the Fe—Ni—Mo-based flat metal soft magnetic powder in water is preferably in the range of 10 minutes to 10 hours.
  • the flat surface of the acid-coating-coated Fe—Ni—Mo-based flat metal soft magnetic powder having the high surface roughness described in (1), (2) or (3) is the thickness direction of the magnetic composite sheet
  • the magnetic composite sheet is oriented and dispersed in the direction intersecting with respect to.
  • the flat surface of the acid-coating-coated Fe—Ni—Mo-based flat metal soft magnetic powder having the high surface roughness described in (1), (2) or (3) is the thickness direction of the magnetic composite sheet
  • the magnetic composite sheet is oriented and dispersed in a direction perpendicular to the magnetic field.
  • the Fe—Ni—Mo flat metal soft magnetic powder is boiled.
  • the time is preferably in the range of 10 minutes to 10 hours. If the boiling time is less than 10 minutes, a sufficiently thick oxide film is not formed, which is not preferable. On the other hand, if the boiling time is longer than 10 hours, the formed oxide film becomes too thick and the oxide film becomes thick. This is because it is preferable that the coercive force is increased if it becomes too large.
  • the resistivity of the composite magnetic sheet obtained by solidifying the oxide-coated Fe—Ni—Mo flat metal soft magnetic powder having a high surface roughness of this invention by mixing the resin with high density is that the surface roughness is Rise because it is coarse.
  • the reason for this is that the contact area between the adjacent oxide-coated Fe-Ni-Mo flat metal soft magnetic powders is reduced due to the unevenness formed on the surface of the powder, and the gap between the powders is reduced. It is considered that fat spreads evenly and increases the resistivity of the obtained composite magnetic sheet.
  • an ordinary commercially available Fe—Ni—Mo based flat metal soft magnetic powder is immersed in water, In particular, it may be dried after boiling in distilled water.
  • the resin used in the magnetic composite sheet of the present invention includes chlorinated polyethylene, silicone, polyurethane, poly (acetic acid butyl), ethylene-acetic acid butyl copolymer, acrylonitrile butadiene-styrene resin (ABS resin), poly salt
  • ABS resin acrylonitrile butadiene-styrene resin
  • poly salt such as rubber, polybutyl butyral, thermoplastic elastomer, EPDM copolymer rubber (ethylene 'propylene copolymer rubber), styrene-butadiene rubber, acrylonitrile butadiene rubber, and blended or blended It may be denatured.
  • denatured this resin may be sufficient.
  • the Ni content in the Fe-Ni-Mo-based flat metal soft magnetic powder constituting the oxide-coated Fe-Ni-Mo-based flat metal soft magnetic powder having a high surface roughness of the present invention is reduced to 60 to 90%.
  • the reason for the limitation is that the magnetic properties are deteriorated when it is less than 60% or more than 90%, and this range is a generally known range.
  • the Ni content in the film-coated Fe—Ni—Mo-based flat metal soft magnetic powder is in the range of 70 to 85%.
  • FeNi ordered phase is excessively formed by slow cooling after heat treatment.
  • the magnetic anisotropy constant is negative and its absolute value becomes too large, resulting in a decrease in magnetic properties.
  • it exceeds 1.95% the formation of FeNi ordered phase becomes insufficient and the crystal
  • the magnetic anisotropy constant ⁇ is negative and its absolute value is too small or positive, the effect of making the flat surface easier to magnetize due to crystal magnetic anisotropy becomes insufficient. Since the in-plane magnetic permeability decreases, it is preferable to limit the amount of Mo added to 0.05-1.95%.
  • the more preferable range of the Mo content in the Fe-Ni-Mo-based flat metal soft magnetic powder having high surface roughness according to the present invention is 0.5 to 1.95%, more preferably. Is between 0.8 and 1.9%.
  • the content of the remaining Fe and inevitable impurities is preferably 8.05% to 39.95%, more preferably 13.05% to 29.5%.
  • the average particle diameter of the Fe-Ni-Mo-based flat metal soft magnetic powder used for the acid-coated film Fe-Ni-Mo-based flat metal soft magnetic powder having a high surface roughness of the present invention is It was set to 30 to 150 ⁇ m. A more preferable range of the average particle diameter is 35 to 140 ⁇ m.
  • the aspect ratio of the Fe—Ni—Mo-based flat metal soft magnetic powder in the oxide-coated Fe—Ni—Mo-based flat metal soft magnetic powder having a high surface roughness of the present invention is less than 5, the demagnetizing field of the powder
  • the aspect ratio is greater than 500, distortion is significantly introduced during flattening treatment, and sufficient magnetic properties are obtained. It is not preferable because it is not possible. Therefore, the aspect ratio of the Fe-Ni-Mo-based flat metal soft magnetic powder used for the oxide film-coated Fe-Ni-Mo-based flat metal soft magnetic powder having a high surface roughness of the present invention is 5 to 500. Determined.
  • the specific surface area of the metal soft magnetic powder is SI
  • the oxide film-covered Fe-Ni-Mo-based flat metal soft magnetic powder having a proportionality coefficient k of less than 10 is not preferable because a composite magnetic sheet having a sufficiently high resistivity cannot be produced. This is because, in order to produce an Fe-Ni-Mo-based flat metal soft magnetic powder with an oxide film with a proportionality coefficient k exceeding 200, boiling for a considerable time must be performed, which is not practical.
  • the oxide film-coated Fe—Ni—Mo-based flat metal soft magnetic powder having a high surface roughness of the present invention has an average particle size of about 30 to 150, preferably about 35 to 140 111, and an aspect ratio of 500 to 500. It may be within the range.
  • the oxide-coated Fe—Ni—Mo-based flat metal soft magnetic powder having a high surface roughness can provide a high-frequency magnetic material having a high resistivity for an antenna and an inductor. It is possible to provide a radio wave absorber having a resistivity, which provides excellent effects in the electrical and electronic industries.
  • the alloy raw material was melted at high frequency to prepare a molten metal having a composition of Ni: 79% by mass, M 0 : 1% by mass, the balance being Fe and inevitable impurities. Then, these molten metal is used as water atom.
  • Fe—Ni—Mo-based metal soft magnetic atomized powder After classifying the Fe-Ni-Mo-based metal soft magnetic atomized powder, it is subjected to flattening with an ordinary attritor, and the resulting flat powder is classified with an air classifier to obtain an average particle size d
  • a raw material powder of an Fe—Ni—Mo based flat metal soft magnetic powder having an average thickness t: l. 96 ⁇ m and an aspect ratio (dZt): 42.3 was prepared.
  • the raw material powder of the Fe—Ni—Mo-based flat metal soft magnetic powder obtained in this way is boiled in distilled water for the time shown in Table 1 so that the acid-coating-coated Fe—Ni—Mo-based powder of the present invention is obtained.
  • Flat metal soft magnetic powder hereinafter referred to as oxide-coated flat soft magnetic powder of the present invention
  • comparative oxide-coated Fe-Ni-Mo series flat metal soft magnetic powder hereinafter referred to as comparative oxide-coated flat soft magnetic powder
  • the Fe-Ni-Mo-based flat metal soft magnetic powder material powder is heated in the atmosphere at a temperature of 375 ° C for 1 hour or 6 minutes.
  • Flat metal soft magnetic powders (hereinafter referred to as conventional oxide film-coated flat soft magnetic powders) 1 to 2 were produced.
  • the oxide film-coated flat soft magnetic powders 1 to 9 were further compared by the gas adsorption method specified in JIS Z 8830.
  • the surface area SR was measured and the results are shown in Table 1.
  • the oxide film-coated flat soft magnetic powders 1 to 9 of the present invention, and a comparative oxide film-coated flat soft magnetic powder 1 In addition, 15% by mass of chlorinated polyethylene: 1 to 2 is mixed with kneaded and soft oxide film-coated flat soft magnetic powder 1-2, and then the flat surface of the oxide film-coated flat metal soft magnetic powder is formed into a sheet by roll forming.
  • the present invention having a thickness of 0.5 mm arranged parallel to the surface (in other words, the flat surfaces of the oxide-coated flat metal soft magnetic powder are arranged in a direction perpendicular to the thickness direction of the sheet)
  • Magnetic composite sheets 1 to 9 comparative magnetic composite sheet 1 and conventional magnetic composite sheets 1 to 2 were prepared, and the resistivity ( ⁇ cm) and coercive force (Oe) of these magnetic composite sheets were measured. It was shown to. LOe is about 80AZm.
  • the present invention oxide film having a proportional coefficient k in the range of 10 200 obtained by boiling Fe-Ni-Mo-based flat metal soft magnetic powder in distilled water.
  • the coated flat soft magnetic powder 19 has a higher resistivity than the conventional oxide-coated flat soft magnetic powder 2 and has a high specific surface area and a high proportionality coefficient k.
  • the oxide film-coated flat soft magnet It can be seen that all of the conductive powders 1 to 9 have a low 1S coercive force with the same resistivity as that of the conventional oxide-coated flat soft magnetic powder 1.
  • the magnetic composite sheets 1 to 9 of the present invention prepared with the oxide film-coated flat soft magnetic powders 1 to 9 have higher resistivity than the conventional magnetic composite sheet 2 of the conventional oxide film-coated flat soft magnetic powder 2 Have
  • the magnetic composite sheets 1 to 9 of the present invention prepared with the oxide film-coated flat soft magnetic powders 1 to 9 of the present invention are the same as the conventional magnetic composite sheet 1 prepared with the conventional oxide film-coated flat soft magnetic powder 1 of V. It can be seen that the resistivity is comparable but the coercive force is low.
  • the comparative magnetic composite sheet 1 produced from the comparative oxide-coated flat soft magnetic powder 1 having a proportional coefficient k that deviates from the conditions of the present invention has a low coercive force but a low resistivity of less than 10 3 ⁇ cm. I understand.
  • Fe-Ni-Mo system with high surface roughness used for high frequency magnetic materials such as radio wave absorbers with excellent radio wave absorption characteristics and antenna cores for radio communications with excellent magnetic characteristics
  • a flat metal soft magnetic powder can be provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Soft Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)

Abstract

L’invention concerne une poudre magnétique tendre métallique plate à base de Fe-Ni-Mo, revêtue d’une pellicule d’oxyde et ayant une rugosité de surface élevée. Ladite poudre est composée d’une poudre magnétique tendre métallique plate à base de Fe-Ni-Mo ayant un diamètre moyen de particule de 30 à 150 µm et un rapport d’aspect (diamètre moyen de particule/épaisseur moyenne) de 5 à 500. On forme à sa surface une pellicule d'oxyde ayant une rugosité de surface élevée, ladite poudre revêtue de ladite pellicule d'oxyde ayant une surface spécifique satisfaisant la relation SR = k·SI, dans laquelle SR représente une surface spécifique de ladite poudre, SI représente une surface spécifique calculée pour ladite poudre revêtue d’une pellicule d’oxyde à surface lisse dépourvue d’irrégularités et k est une constante de proportionnalité valant de 10 à 200.
PCT/JP2005/023359 2004-12-21 2005-12-20 POUDRE MAGNETIQUE TENDRE METALLIQUE PLATE A BASE DE Fe-Ni-Mo, REVETUE D'UNE PELLICULE D'OXYDE ET AYANT UNE RUGOSITE DE SURFACE ELEVEE, ET PROCEDE POUR LA PRODUIRE WO2006068136A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004369372A JP2006179576A (ja) 2004-12-21 2004-12-21 高表面粗さを有する酸化膜被覆Ｆｅ−Ｎｉ−Ｍｏ系扁平金属軟磁性粉末およびその製造方法
JP2004-369372 2004-12-21

Publications (1)

Publication Number Publication Date
WO2006068136A1 true WO2006068136A1 (fr) 2006-06-29

Family

ID=36601736

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/023359 WO2006068136A1 (fr) 2004-12-21 2005-12-20 POUDRE MAGNETIQUE TENDRE METALLIQUE PLATE A BASE DE Fe-Ni-Mo, REVETUE D'UNE PELLICULE D'OXYDE ET AYANT UNE RUGOSITE DE SURFACE ELEVEE, ET PROCEDE POUR LA PRODUIRE

Country Status (2)

Country Link
JP (1) JP2006179576A (fr)
WO (1) WO2006068136A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105436498B (zh) * 2015-11-18 2017-12-01 山东大学 一种多孔镍‑碳纳米复合微球电磁波吸收材料及其制备方法与应用
JP2023079827A (ja) * 2021-11-29 2023-06-08 Tdk株式会社 軟磁性金属粉末、圧粉磁心、磁性部品および電子機器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638402A (en) * 1979-09-05 1981-04-13 Tdk Corp High density sintered magnetic body and its manufacture
WO2002008129A1 (fr) * 2000-07-26 2002-01-31 Heraeus Tenevo Ag Procede de vitrification de matieres poreuses chargees de suies
WO2003015109A1 (fr) * 2001-08-09 2003-02-20 The Circle For The Promotion Of Science And Engineering Substance magnetique composite formee par compression de particules metalliques revetues de ferrite et procede de preparation associe
JP2003086415A (ja) * 2001-09-12 2003-03-20 Aisin Seiki Co Ltd モータ又は電磁アクチュエータ用軟磁性粒子、モータ又は電磁アクチュエータ用軟磁性粒子の製造方法、モータ又は電磁アクチュエータ用軟磁性成形体、モータ又は電磁アクチュエータ用軟磁性成形体の製造方法
JP2003332114A (ja) * 2002-05-09 2003-11-21 Mitsubishi Materials Corp 室温および高温における機械的強度並びに耐キャビテーション損傷性が共に優れたボンド軟磁性体およびその製造方法
JP2004039703A (ja) * 2002-06-28 2004-02-05 Tdk Corp 電磁波吸収シートおよびその製造方法
JP2005264317A (ja) * 2003-08-05 2005-09-29 Mitsubishi Materials Corp Ｆｅ−Ｎｉ−Ｍｏ系扁平金属軟磁性粉末およびその軟磁性粉末を含む磁性複合材

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638402A (en) * 1979-09-05 1981-04-13 Tdk Corp High density sintered magnetic body and its manufacture
WO2002008129A1 (fr) * 2000-07-26 2002-01-31 Heraeus Tenevo Ag Procede de vitrification de matieres poreuses chargees de suies
WO2003015109A1 (fr) * 2001-08-09 2003-02-20 The Circle For The Promotion Of Science And Engineering Substance magnetique composite formee par compression de particules metalliques revetues de ferrite et procede de preparation associe
JP2003086415A (ja) * 2001-09-12 2003-03-20 Aisin Seiki Co Ltd モータ又は電磁アクチュエータ用軟磁性粒子、モータ又は電磁アクチュエータ用軟磁性粒子の製造方法、モータ又は電磁アクチュエータ用軟磁性成形体、モータ又は電磁アクチュエータ用軟磁性成形体の製造方法
JP2003332114A (ja) * 2002-05-09 2003-11-21 Mitsubishi Materials Corp 室温および高温における機械的強度並びに耐キャビテーション損傷性が共に優れたボンド軟磁性体およびその製造方法
JP2004039703A (ja) * 2002-06-28 2004-02-05 Tdk Corp 電磁波吸収シートおよびその製造方法
JP2005264317A (ja) * 2003-08-05 2005-09-29 Mitsubishi Materials Corp Ｆｅ−Ｎｉ−Ｍｏ系扁平金属軟磁性粉末およびその軟磁性粉末を含む磁性複合材

Also Published As

Publication number Publication date
JP2006179576A (ja) 2006-07-06

Similar Documents

Publication Publication Date Title
EP4001449B1 (fr) Poudre d'alliage nanocristallin à base de fe, composant magnétique et noyau de poussière
TWI535861B (zh) 合金組成物、鐵基奈米結晶合金及其製造方法與磁性元件
CN101636515B (zh) 软磁性合金及使用该软磁性合金的磁气部件以及它们的制造方法
TWI626666B (zh) Soft magnetic alloy and magnetic parts
EP2482291B1 (fr) Poudre magnétique et matériau magnétique composite à faibles pertes contenant ladite poudre
TWI697571B (zh) 軟磁性合金及磁性部件
CN108376598B (zh) 软磁性合金及磁性部件
CN110225801A (zh) 软磁性粉末、Fe基纳米晶合金粉末、磁性部件及压粉磁芯
JP2004349585A (ja) 圧粉磁心およびナノ結晶磁性粉末の製造方法
CN111801752B (zh) 磁性芯及其制造方法和线圈部件
TWI636143B (zh) Soft magnetic alloy and magnetic parts
US7622012B2 (en) Flat soft magnetic metal powder and composite magnetic material including the soft magnetic metal powder
CN108461245B (zh) 软磁性合金及磁性部件
TW201817896A (zh) 軟磁性合金及磁性部件
TWI685004B (zh) 軟磁性合金及磁性部件
TW202000945A (zh) 軟磁性合金和磁性部件
CN105702410A (zh) 一种软磁磁粉芯的制备方法
WO2005011899A1 (fr) Poudre faiblement magnetique metallique floconneuse fe/ni/mo et materiau composite magnetique contenant cette poudre faiblement magnetique
TWI683011B (zh) 軟磁性合金及磁性零件
TW201925493A (zh) 軟磁性合金及磁性部件
WO2006068136A1 (fr) POUDRE MAGNETIQUE TENDRE METALLIQUE PLATE A BASE DE Fe-Ni-Mo, REVETUE D'UNE PELLICULE D'OXYDE ET AYANT UNE RUGOSITE DE SURFACE ELEVEE, ET PROCEDE POUR LA PRODUIRE
JP2625485B2 (ja) 電磁シールド材料
JP2006219714A (ja) Ｆｅ−Ｎｉ−（Ｎｂ，Ｖ，Ｔａ）系扁平金属軟磁性粉末およびその軟磁性粉末を含む磁性複合材
JPH03125404A (ja) 磁心の製造方法
JP2006219700A (ja) Ｆｅ−Ｎｉ−Ｍｏ−（Ｎｂ，Ｖ，Ｔａ）系扁平金属軟磁性粉末およびその軟磁性粉末を含む磁性複合材

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05819812

Country of ref document: EP

Kind code of ref document: A1

WWW Wipo information: withdrawn in national office

Ref document number: 5819812

Country of ref document: EP