CN109516794A - A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300 - Google Patents

A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300 Download PDF

Info

Publication number
CN109516794A
CN109516794A CN201811267320.8A CN201811267320A CN109516794A CN 109516794 A CN109516794 A CN 109516794A CN 201811267320 A CN201811267320 A CN 201811267320A CN 109516794 A CN109516794 A CN 109516794A
Authority
CN
China
Prior art keywords
mol
nio
zno
cuo
soft 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
Application number
CN201811267320.8A
Other languages
Chinese (zh)
Inventor
张力
曹淑涛
程仁福
陈月光
袁纪烈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong And Electronics Co Ltd Of Square Shandong Tip
Original Assignee
Shandong And Electronics Co Ltd Of Square Shandong Tip
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 Shandong And Electronics Co Ltd Of Square Shandong Tip filed Critical Shandong And Electronics Co Ltd Of Square Shandong Tip
Priority to CN201811267320.8A priority Critical patent/CN109516794A/en
Publication of CN109516794A publication Critical patent/CN109516794A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • H01F1/34—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 non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • 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
    • H01F1/34—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 non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • C04B2235/3277—Co3O4
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3279—Nickel oxides, nickalates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300, belongs to high frequency low magnetic permeability soft magnetic ferrite manufacturing technology field.It includes A mol%Fe that soft magnetic ferrite of the invention, which mainly forms,2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein A+B+C+D=100%, 40≤A≤60,5≤B≤15,25≤C≤40,5≤D≤15,0≤e≤15,0≤f≤5,0≤g≤3, ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+ B mol%NiO+C mol%ZnO+D mol%CuO) weight fraction.The material has the characteristics that can satisfy using required high quality factor, high resistivity and low ratio temperature coefficient.

Description

A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300
Technical field
The invention belongs to high frequency low magnetic permeability soft magnetic ferrite manufacturing technology fields more particularly to a kind of magnetic conductivity to be 300 soft magnetic ferrite and preparation method thereof.
Background technique
High frequency low magnetic permeability soft magnetic ferrite be mainly used in computer and peripheral equipment, Space Science and Technology, energy-saving illumination, In communication system, for anti-EMI materials such as inductor, magnetic bead, transformer, choke coils.
As the generally implementation of domestic and international electromagnetic compatibility regulation and the raising of surface mounting technique (SMT) and complete machine minimize Requirement, the requirement to miniaturization and the diversification of electronic component is higher and higher.Laminated chip inductor is due to excellent Magnetic shield property, D.C. resistance it is small, the advantages that quality factor (Q value) are high, small in size, by the favor in market, while to small The chip inductor demand of the big sensibility reciprocal of typeization is also increasingly incremented by.
Produce chip inductor main material be NiCuZn series soft magnetic ferrite, have relatively high magnetic conductivity (μ), The characteristics such as high quality factor (Q value), high resistivity (ρ).The magnetic conductivity of current NiCuZn series soft magnetic ferrite is mostly in 20- Between 210, the batch production for causing such soft magnetic ferrite to minimize the chip inductor of high sensibility reciprocal is relatively difficult.
Summary of the invention
For overcome the deficiencies in the prior art, the mass production capabilities for minimizing high sensibility reciprocal chip inductor are improved, market is adapted to Demand, the present invention provide a kind of soft magnetic ferrite that magnetic conductivity is 300.
Another object of the present invention soft magnetic ferrite and preparation method thereof.The production technology and equipment are wanted without special It asks, convenient for batch production.
For achieving the above object, the present invention the following technical schemes are provided:
The soft magnetic ferrite includes Fe2O3, major metals dusty material and other auxiliary materials such as NiO, CuO, ZnO, using height The soft magnetic ferrite that magnetic conductivity is 300-330 or so is made in warm solid reaction process.
Fe2O3, NiO, CuO, ZnO be the soft magnetic ferrite main component, SiO2It is magnetic conductivity than tc compensation material Material, Co3O4For magnetic conductivity modifier material, Bi2O3For sintering aid material.It includes A mol% that soft ferromagnetic powder, which mainly forms, Fe2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein A+B+ C+D=100%, 40≤A≤60,5≤B≤15,25≤C≤40,5≤D≤15,0≤e≤15,0≤f≤5,0≤g≤3, Ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+ B mol%NiO+C mol%ZnO+D mol%CuO) weight fraction.
A kind of prioritization scheme of above-mentioned composition are as follows: high frequency low magnetic permeability soft magnetic ferrite, it is characterised in that powder group As A mol%Fe2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein Fe2O3, synthesizing soft magnetic ferrite main material MO. Fe after NiO, ZnO, CuO elder generation solid phase reaction2O3(M2+Represent Ni2+、 Cu2+、Zn2+), A+B+C+D=100%, 45≤A≤55,7≤B≤12,27≤C≤38,7≤D≤12,1≤e≤5,0.05≤f ≤ 2,0.01≤g≤1, ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+ B mol%NiO+C mol%ZnO+D mol%CuO) Weight fraction.
A kind of prioritization scheme of above-mentioned composition are as follows: high frequency low magnetic permeability soft magnetic ferrite, it is characterised in that powder group As A mol%Fe2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein Fe2O3, synthesizing soft magnetic ferrite main material MO. Fe after NiO, ZnO, CuO elder generation solid phase reaction2O3(M2+Represent Ni2+、 Cu2+、Zn2+) A+B+C+D=100%, 48≤A≤50,8≤B≤10,29≤C≤35,8≤D≤10,1.5≤e≤3.5,0.1 ≤ f≤1.5,0.1≤g≤0.8, ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+B mol%NiO+C mol%ZnO+D Mol%CuO weight fraction).
A kind of preparation method of high frequency low magnetic permeability soft magnetic ferrite, comprising the following steps:
1. by Fe2O3, NiO, ZnO, CuO material according to material molar ratio described in above scheme form, be placed in and install agate In the polyurethane ball-milling pot of ball, deionized water is then added and carries out 24 ± 1h of ball milling, ball: material: water is advisable with 1.4:1:1.1, ball Slurry after mill is extracted using vacuum pump enters filter press after filter filters, and the filters pressing of 2-3M pressure 6 hours or so, will press Material after filter carries out 180 DEG C of drying, the use of Particle Size Analyzer test powder particles D50 is 1.8 ± 0.2um, by the powder of drying The generous alms bowl of aluminium oxide is filled, is calcined 3 ± 0.5 hours in batch-type furnace or continuous tunnel furnace in 850 ± 10 DEG C, synthesizing soft magnetic ferrite main material Expect MOFe2O3(M2+Represent Ni2+、Cu2+、Zn2+).
2. main material MOFe after firing2O3Material Bi described in middle addition above scheme2O3、Co3O4、SiO2, It is placed in zirconium ball 3 ± 0.5h of ball milling in polyurethane Ball-stirring mill ball grinder, ball: material: water=3:1:1, after zirconium ball Ball-stirring mill ball milling Slurry carries out testing graininess, and powder particles D50 goes to sand mill ball milling 8 in 1.2-1.5um, then by the slurry after Ball-stirring mill ball milling ± 1h, 360 DEG C of slurry drying after ball milling, it is 0.8 ± 0.2um to get material of the present invention that Particle Size Analyzer, which tests material granularity D50, Material.
3. 5wt% polyvinyl alcohol (PVA) adhesive is added in invention material to be granulated, outer diameter 20mm is suppressed in 8-12MPa, Internal diameter 10mm, in batch-type furnace or continuous tunnel furnace in 890-910 DEG C, keeps the temperature 2-4h, can test this material with a thickness of the annulus of 3mm Performance parameter.
Soft magnetic ferrite of the invention, by the improvement of preparation process process and the proportion optimizing of each powder, Acquisition magnetic conductivity is 300-330 powder, while having and can satisfy using required high quality factor, high resistivity and low ratio The features such as temperature coefficient.
Specific embodiment
Table 1 gives the several specific examples and its high-gradient magnetism energy for constituting various composition content of the invention.Soft magnet The magnetic conductivity of oxysome measures under 1-3MHz frequency.
1 high frequency of table, the composition of low magnetic permeability soft magnetic ferrite, sintering temperature and magnetic property

Claims (4)

1. the soft magnetic ferrite and preparation method thereof that a kind of magnetic conductivity is 300, it is characterised in that material composition are as follows: A mol% Fe2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein A+B+ C+D=100%, 40≤A≤60,5≤B≤15,25≤C≤40,5≤D≤15,0≤e≤15,0≤f≤5,0≤g≤3, Ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+ B mol%NiO+C mol%ZnO+D mol%CuO) weight fraction.
2. the soft magnetic ferrite and preparation method thereof that a kind of magnetic conductivity is 300 according to claim 1, it is characterised in that Material composition are as follows: A mol%Fe2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein Fe2O3, synthesizing soft magnetic ferrite main material MO. Fe after NiO, ZnO, CuO elder generation solid phase reaction2O3(M2+It represents Ni2+、Cu2+、Zn2+), A+B+C+D=100%, 45≤A≤55,7≤B≤12,27≤C≤38,7≤D≤12,1≤e≤5, 0.05≤f≤2,0.01≤g≤1, ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+B mol%NiO+C mol%ZnO+D Mol%CuO weight fraction).
3. the soft magnetic ferrite and preparation method thereof that a kind of magnetic conductivity is 300 according to claim 1, it is characterised in that Material composition are as follows: A mol%Fe2O3+B mol%NiO+C mol%ZnO+D mol%CuO+e wt% Bi2O3+f wt% Co3O4+g wt% SiO2, wherein Fe2O3, synthesizing soft magnetic ferrite main material MO. Fe after NiO, ZnO, CuO elder generation solid phase reaction2O3(M2+It represents Ni2+、Cu2+、Zn2+) A+B+C+D=100%, 48≤A≤50,8≤B≤10,29≤C≤35,8≤D≤10,1.5≤e≤3.5, 0.1≤f≤1.5,0.1≤g≤0.8, ewt%, fwt%, gwt% are to account for (A mol%Fe2O3+B mol%NiO+C mol%ZnO+D Mol%CuO weight fraction).
4. a kind of preparation method for the soft magnetic ferrite that magnetic conductivity is 300 according to claim 1, it is characterised in that:
1. by Fe2O3, these materials of NiO, ZnO, CuO according to material molar ratio described in above scheme form, be placed in polyurethane In ball grinder, 24 ± 1h of ball milling mixing is carried out using agate ball, ball: material: water=1.4:1:1.1,180 DEG C of drying, granularity after filters pressing It is 1.8 ± 0.2um that analyzer, which tests mixed powder granularity D50, calcines 3 ± 0.5 in 850 ± 10 DEG C in batch-type furnace or continuous tunnel furnace Hour, synthesizing soft magnetic ferrite main material MOFe2O3(M2+Represent Ni2+、Cu2+、Zn2+)；2. according to described in above scheme Material composition, in MOFe2O3Middle addition Bi2O3、Co3O4、SiO2, be placed in zirconium ball ball milling 3 in polyurethane Ball-stirring mill ball grinder ± 0.5h, ball: material: water=3:1:1, then slurry is gone into sand mill 8 ± 1h of ball milling, 360 DEG C of slurry drying, test the material after ball milling Granularity D50 is 0.8 ± 0.2um to get material of the present invention；3. 5wt% polyvinyl alcohol (PVA) adhesive is added within this material to make Grain suppresses outer diameter 20mm, internal diameter 10mm in 8-12MPa, with a thickness of the annulus of 3mm, in batch-type furnace or continuous tunnel furnace in 890-910 DEG C, 2-4h is kept the temperature, this material property parameter can be tested.
CN201811267320.8A 2018-10-29 2018-10-29 A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300 Pending CN109516794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811267320.8A CN109516794A (en) 2018-10-29 2018-10-29 A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811267320.8A CN109516794A (en) 2018-10-29 2018-10-29 A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300

Publications (1)

Publication Number Publication Date
CN109516794A true CN109516794A (en) 2019-03-26

Family

ID=65772637

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811267320.8A Pending CN109516794A (en) 2018-10-29 2018-10-29 A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300

Country Status (1)

Country Link
CN (1) CN109516794A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3147496B2 (en) * 1992-05-25 2001-03-19 株式会社村田製作所 Ferrite material
CN1388794A (en) * 2000-08-21 2003-01-01 Tdk株式会社 Ferrite material
CN101412622A (en) * 2008-10-31 2009-04-22 天通控股股份有限公司 High-frequency nickel-copper-zinc ferrite and preparation thereof
CN101552074A (en) * 2009-01-04 2009-10-07 贵阳晶华电子材料有限公司 A NiZnCu ferrite material and preparing method thereof
CN103332928A (en) * 2012-11-02 2013-10-02 横店集团东磁股份有限公司 Soft-magnetic nickel-copper-zinc ferrite material and preparation method thereof
CN103803963A (en) * 2013-12-27 2014-05-21 电子科技大学 NiCuZn ferrite material and preparation method thereof
CN104844184A (en) * 2015-04-27 2015-08-19 厦门大学 Near field communication magnetic sheet with low magnetic permeability and temperature coefficient and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3147496B2 (en) * 1992-05-25 2001-03-19 株式会社村田製作所 Ferrite material
CN1388794A (en) * 2000-08-21 2003-01-01 Tdk株式会社 Ferrite material
CN101412622A (en) * 2008-10-31 2009-04-22 天通控股股份有限公司 High-frequency nickel-copper-zinc ferrite and preparation thereof
CN101552074A (en) * 2009-01-04 2009-10-07 贵阳晶华电子材料有限公司 A NiZnCu ferrite material and preparing method thereof
CN103332928A (en) * 2012-11-02 2013-10-02 横店集团东磁股份有限公司 Soft-magnetic nickel-copper-zinc ferrite material and preparation method thereof
CN103803963A (en) * 2013-12-27 2014-05-21 电子科技大学 NiCuZn ferrite material and preparation method thereof
CN104844184A (en) * 2015-04-27 2015-08-19 厦门大学 Near field communication magnetic sheet with low magnetic permeability and temperature coefficient and preparation method thereof

Similar Documents

Publication Publication Date Title
CN103964828B (en) A kind of high-performance permanent magnetic ferrite material and preparation method thereof
KR101016501B1 (en) A NiCuZn ferrite and its manufacturing methods thereof
CN103058643B (en) Mn-Zn soft magnetic ferrite material with high, temperature, high superposition and low power consumption, and preparation method of Mn-Zn soft magnetic ferrite material
CN101388268B (en) High magnetic conductive low temperature sintered NiCuZn ferrite material
CN102167573B (en) Special nickel-zinc ferrite material for integrated high frequency electrodeless discharge lamp inductive coupler and preparation method
CN102603280B (en) High-Q value nickel and zinc ferrite with initial permeability of 70 and preparation method thereof
CN111233452B (en) High-frequency high-impedance lean iron manganese zinc ferrite and preparation method thereof
CN108863333A (en) It is a kind of to prepare ferritic Cu, V, Bi, Co ionic association alternative of high-performance NiZn
CN1255355C (en) Low temperature coefficient, low loss and high saturated flux density ferrite material and preparing method
CN101640090A (en) High performance soft magnetic ferrite materials doped with Ni-Zn series and preparation method thereof
MX2013014054A (en) Magnetoplumbite-type ferrite magnetic material and segment-type permanent magnet derived therefrom.
CN110922179B (en) High-permeability low-loss ferrite material and preparation method thereof
CN112479699A (en) Low-loss nano ferrite magnetic material and preparation method thereof
CN102924069B (en) Hexagonal crystal M+W mixed type sintered permanent magnetic ferrite magnet and preparation method thereof
CN103295766B (en) A kind of preparation method of the ferromagnetic core that contains modified carbonize aluminium
CN105198396B (en) A kind of NiCuZn ferrite material and its manufacturing method
WO2024104324A1 (en) Nickel-zinc ferrite material, and preparation method therefor and use thereof
CN109485399A (en) NiCuZn ferrite magnetic sheet for NFC and wireless charging
CN105036722A (en) Nicuzn ferrite and preparation method thereof
CN103848620A (en) LiMnZn ferrite material and preparation method thereof
CN112430075A (en) Ferrite magnetic material and manufacturing method thereof
CN109516794A (en) A kind of soft magnetic ferrite and preparation method thereof that magnetic conductivity is 300
CN114605142B (en) Composite ferrite substrate material for LTCF transformer and preparation method thereof
CN109320230B (en) Preparation method of manganese-zinc soft magnetic ferrite material with four high characteristics
CN103426581A (en) Manganese and zinc soft magnetic ferrite KP6B and method for manufacturing same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190326