CN105837195A - NiZnCu ferrite material and preparation method thereof - Google Patents

NiZnCu ferrite material and preparation method thereof Download PDF

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CN105837195A
CN105837195A CN201610176849.3A CN201610176849A CN105837195A CN 105837195 A CN105837195 A CN 105837195A CN 201610176849 A CN201610176849 A CN 201610176849A CN 105837195 A CN105837195 A CN 105837195A
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ball
ferrite material
gained
nizncu ferrite
powder
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CN105837195B (en
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梁迪飞
董从根
李维佳
陈志科
谢建良
邓龙江
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University of Electronic Science and Technology of China
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    • 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
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
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  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Ceramics (AREA)
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Abstract

The invention belongs to the field of electronic materials and relates to a NiZnCu ferrite material and a preparation method thereof. The formula of the NiZnCu ferrite material is Ni<x>Zn<y>Cu<1-x-y>Fe<2-a>O<3-3a/2>, 0.24 <= x <= 0.25, 0.58 <= y <= 0.61, 0.02 <= a <= 0.03. The NiZnCu ferrite material is mainly prepared from following raw materials: NiO, ZnO, CuO and Fe2O3 and is free of doping. At 1 MHz, the real part [mu]' is 1300-1400 and the imaginary part [mu]'' is 150-160 in complex-variable permeability of a magnetic ring, initial permeability [mu]i is 1500-1750, and cut-off frequency Fr is 2.9-4.15 MHz. The NiZnCu ferrite material is high in permeability, is low in loss, can be applied as a magnetism insulating sheet in wireless charging, and is free of doping.

Description

A kind of NiZnCu Ferrite Material and preparation method thereof
Technical field
The invention belongs to field of electronic materials, be specifically related to a kind of NiZnCu Ferrite Material for wireless charging and preparation thereof Method.
Background technology
Along with the fast development of electronics and information industry, each electronic product is maked rapid progress, and electronic product function tends to variation, so And the charging device of major part electronic product is incompatible, power line in a jumble, the most portable and there is potential safety hazard etc., old friends More and more higher to the safety of electronic product and the requirement of convenience.Under this overall situation, disresonance vicarious wireless charging Denso The advantages such as it is compatible preferably to put system addresses, easy to carry, and safety is high are shown one's talent.But wireless charging has been compared to Line charges, although it is compatible good to have, easy to carry, safety high, but there is bigger deficiency and be it Charge efficiency is far below wired charging.
Exist the reason of the problems referred to above be the principle of wireless charging technology be electromagnetic induction, its transmitting terminal coil and receiving terminal coil are Separate and coil is in metal environment, therefore the space between two coupling coils is relatively big, causes coil coupling not tight, exists relatively Big leakage inductance, the change in magnetic flux density between two coils is weakened severely, and then have impact on energy transmission efficiency.Above-mentioned in order to solve The problem existed, research worker selects to add magnetic material between the receiving terminal coil and sheet metal of wireless charging device system every magnetic Sheet, it is desirable to have high magnetic permeability, the low-loss, i.e. antifreeze plate of antifreeze plate become the real part of pcrmeability greatly again, and imaginary part is little.At present, Magnetic material antifreeze plate major part on market is all NiZnCu ferrite antifreeze plate.More universal in wireless charging NiZnCu Ferrite Material is the Material44 of Fair Rite company, but its magnetic property is between 100KHz～200KHz, ferrum Oxysome magnetic sheet real part also can only achieve 500, imaginary part about 10.So from the point of view of developing with regard to current wireless charging, improving its receiving terminal The pcrmeability real part of antifreeze plate, reduces imaginary part and is still problem to be solved, and the repeatability of same NiZnCu Ferrite Material is also It is to have problem to be solved.
Summary of the invention
For above-mentioned existing problems or deficiency, the invention provides a kind of NiZnCu Ferrite Material and preparation method thereof, should NiZnCu Ferrite Material pcrmeability is high, is lost low, is applied to the NiZnCu ferrite antifreeze plate of low-frequency wireless charging.
Technical scheme is specific as follows:
A kind of NiZnCu Ferrite Material, formula is NixZnyCu1-x-yFe2-aO3-3a/2, 0.24≤x≤0.25,0.58≤y≤ 0.61,0.02≤a≤0.03, the main composition of its raw material is NiO, ZnO, CuO and Fe2O3, non-impurity-doped；
At 1MHz, it is 1300～1400 that magnet ring becomes the real part μ ' of pcrmeability again, imaginary part μ " it is 150～160, initial magnetic Conductance μ i is 1500～1750, and cut-off frequency Fr is 2.9～4.15MHz.
Raw material main composition purity is NiO >=99.45wt%, ZnO >=98wt%, CuO >=98.45wt%, Fe2O3>=99.4wt%.
The preparation method of above-mentioned NiZnCu Ferrite Material, comprises the following steps:
Step 1, according to NixZnyCu1-x-yFe2-aO3-3a/2Weigh raw material NiO, ZnO, CuO, and Fe2O3Standby, 0.24≤x≤0.25, 0.58≤y≤0.61,0.02≤a≤0.03.Material purity is NiO >=99.45wt%, ZnO >=98wt%, CuO >=98.45wt%, Fe2O3>=99.4wt%.
Step 2, load weighted for step 1 raw material is put into ball grinder, according to material: ball: water quality is than 1:3:1, to ball grinder The small ball of middle addition diameter 6.4mm～6.5mm and deionized water, put into ball mill by ball grinder and fix, with rotating speed be 200～ 250rad/min, after ball milling 2～3h, prepares slurry.
Step 3, step 2 ball milling gained slurry is put in an oven dry after prepare powder, oven temperature be set to 90 DEG C～ 100℃。
Step 4, step 3 gained powder is positioned over high temperature sintering furnace carrying out pre-burning, temperature is set to 850 DEG C, and heating curve is 2～4 DEG C/min, natural cooling after insulation 3～5h.
Step 5, step 4 pre-burning gained powder being positioned over ball grinder, operate according to step 2, Ball-milling Time is 3～4h.
Step 6, the slurry of step 5 ball milling gained is operated according to step 3.
Step 7, in the powder of step 6 gained add 7wt%～8wt% polyvinyl alcohol PCV, mix homogeneously carries out pelletize, The powder pressing that pelletize is good is become ring-like, thickness 3mm～4mm, internal diameter 7mm～8mm, external diameter 15mm～16mm.Pressure Ring compression is 8～9MPa；Dwell time is 3～5s.
Step 8, ring-like Ferrite Material step 7 suppressed are placed in high temperature sintering furnace and are sintered.Sintering temperature is 1000 DEG C, heating curve is 2～5 DEG C/min, natural cooling after insulation 3～5h, i.e. obtains final NiZnCu Ferrite Material.
In sum, the NiZnCu Ferrite Material that the present invention provides, cut-off frequency Fr is 2.9～4.15MHz, and pcrmeability is high, It is lost low, can be applicable to the antifreeze plate of wireless charging；Its formula non-impurity-doped.
Accompanying drawing explanation
Fig. 1 is that embodiment 1 prepares NiZnCu ferritic XRD figure spectrum；
Fig. 2 is that embodiment 1 prepares the ferritic spectrogram of NiZnCu.
Detailed description of the invention
Embodiment 1
Step 1, according to Ni0.24Zn0.60Cu0.16Fe1.97O3.955, weigh raw material NiO, 99.45wt%；ZnO, 98wt%；CuO, 98.45wt%； Fe2O3, 99.4wt%.
Step 2, raw material load weighted in step 1 is put into ball grinder, according to material: ball: water quality is than the pass for 1:3:1 System adds diameter 6.4mm small ball and deionized water in ball grinder, ball grinder is put into ball mill and fixes, with rotating speed be 250rad/min ball milling 2.5h.
Step 3, being put by the slurry of step 2 ball milling gained and dry in an oven, oven temperature is set to 90 DEG C.
Step 4, the powder of step 3 gained is positioned over high temperature sintering furnace carrying out pre-burning, temperature is set to 850 DEG C, heating curve It is 2 DEG C/min, natural cooling after insulation 3h.
Step 5, the powder of step 4 pre-burning gained is positioned over ball grinder, operates according to step 2, but Ball-milling Time changes For 3h.
Step 6, the slurry of step 5 ball milling gained is operated according to step 3.
Step 7, adding the polyvinyl alcohol PCV of 7wt% in the powder of step 6 gained, mix homogeneously carries out pelletize, pelletize Good powder pressing becomes ring-like, ring thickness 3.5mm, internal diameter 8mm, external diameter 16mm.Pressure ring pressure 9MPa；Dwell time, 5s。
Step 8, ring-like Ferrite Material step 7 suppressed are placed in high temperature sintering furnace and are sintered.Sintering temperature is 1000 DEG C, heating curve is 2 DEG C/min, natural cooling after insulation 3h, i.e. can get the NiZnCu Ferrite Material of the present invention.
Embodiment 1 is prepared magnet ring and is characterised by: at 1MHz, and it is 1369 that magnet ring becomes the real part μ ' of pcrmeability again, imaginary part " being 154, initial permeability μ i is 1722 to μ, and cut-off frequency Fr is 3.47MHz.
Embodiment 2
Step 1, according to Ni0.245Zn0.595Cu0.16Fe1.97O3.955, weigh raw material NiO, 99.45wt%；ZnO, 98wt%；CuO, 98.45wt%； Fe2O3, 99.4wt%.
Step 2, raw material load weighted in step 1 is put into ball grinder, according to material: ball: water quality is than the pass for 1:3:1 System adds diameter 6.4mm small ball and deionized water in ball grinder, ball grinder is put into ball mill and fixes, with rotating speed be 250rad/min ball milling 2.5h.
Step 3, being put by the slurry of step 2 ball milling gained and dry in an oven, oven temperature is set to 100 DEG C.
Step 4, the powder of step 3 gained is positioned over high temperature sintering furnace carrying out pre-burning, temperature is set to 850 DEG C, heating curve It is 2 DEG C/min, natural cooling after insulation 3h.
Step 5, the powder of step 4 pre-burning gained is positioned over ball grinder, operates according to step 2, but Ball-milling Time changes For 3h.
Step 6, the slurry of step 5 ball milling gained is operated according to step 3.
Step 7, adding the polyvinyl alcohol PCV of 8wt% in the powder of step 6 gained, mix homogeneously carries out pelletize, pelletize Good powder pressing becomes ring-like, ring thickness 3.5mm, internal diameter 8mm, external diameter 16mm.Pressure ring pressure 8MPa；Dwell time, 5s。
Step 8, ring-like Ferrite Material step 7 suppressed are placed in high temperature sintering furnace and are sintered.Sintering temperature is 1000 DEG C, heating curve is 3 DEG C/min, natural cooling after insulation 3h, i.e. can get the NiZnCu Ferrite Material of the present invention.
Embodiment 2 is prepared magnet ring and is characterised by: at 1MHz, and it is 1300 that magnet ring becomes the real part μ ' of pcrmeability again, imaginary part " being 150, initial permeability μ i is 1695 to μ, and cut-off frequency Fr is 4.15MHz.

Claims (3)

1. a NiZnCu Ferrite Material, it is characterised in that: formula is NixZnyCu1-x-yFe2-aO3-3a/2, 0.24 ≤ x≤0.25,0.58≤y≤0.61,0.02≤a≤0.03, the main composition of its raw material be NiO, ZnO, CuO and Fe2O3, non-impurity-doped；
At 1MHz, it is 1300～1400 that magnet ring becomes the real part μ ' of pcrmeability again, imaginary part μ " be 150～ 160, initial permeability μ i is 1500～1750, and cut-off frequency Fr is 2.9～4.15MHz.
2. NiZnCu Ferrite Material as claimed in claim 1, it is characterised in that: raw material main composition purity For NiO >=99.45wt%, ZnO >=98wt%, CuO >=98.45wt%, Fe2O3>=99.4wt%.
3. the preparation method of NiZnCu Ferrite Material as claimed in claim 1, comprises the following steps:
Step 1, according to NixZnyCu1-x-yFe2-aO3-3a/2Weigh raw material NiO, ZnO, CuO, and Fe2O3It is standby, 0.24≤x≤0.25,0.58≤y≤0.61,0.02≤a≤0.03；Purity is NiO >=99.45wt%, ZnO >=98wt%, CuO >=98.45wt%, Fe2O3>=99.4wt%；
Step 2, load weighted for step 1 raw material is put into ball grinder, according to material: ball: water quality is than 1:3: 1, in ball grinder, add small ball and the deionized water of diameter 6.4mm～6.5mm, ball grinder is put into ball Grinding machine is fixed, and is 200～250rad/min with rotating speed, after ball milling 2～3h, prepares slurry；
Step 3, step 2 ball milling gained slurry is put in an oven dry after prepare powder, oven temperature arrange It it is 90 DEG C～100 DEG C；
Step 4, step 3 gained powder is positioned over high temperature sintering furnace carrying out pre-burning, temperature is set to 850 DEG C, Heating curve is 2～4 DEG C/min, natural cooling after insulation 3～5h；
Step 5, step 4 pre-burning gained powder is positioned over ball grinder, operates according to step 2, ball milling Time is 3～4h；
Step 6, the slurry of step 5 ball milling gained is operated according to step 3；
Step 7, adding the polyvinyl alcohol PCV of 7wt%～8wt% in the powder of step 6 gained, mixing is all Even carry out pelletize, the powder pressing that pelletize is good is become ring-like, thickness 3mm～4mm, internal diameter 7mm～8mm, External diameter 15mm～16mm, pressure ring pressure is 8～9MPa, and the dwell time is 3～5s；
Step 8, ring-like Ferrite Material step 7 suppressed are placed in high temperature sintering furnace and are sintered, and burn Junction temperature is 1000 DEG C, and heating curve is 2～5 DEG C/min, natural cooling after insulation 3～5h, i.e. obtains Whole NiZnCu Ferrite Material.
CN201610176849.3A 2016-03-25 2016-03-25 A kind of NiZnCu Ferrite Material and preparation method thereof Active CN105837195B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108773858A (en) * 2018-07-10 2018-11-09 电子科技大学 A kind of pattern-band Surface Wave Absorbing Material and preparation method thereof
CN108911729A (en) * 2018-06-28 2018-11-30 宁波高新区兆丰微晶新材料有限公司 Ni-Zn-Cu system complex ferrite piece and preparation method thereof
CN109336578A (en) * 2018-06-22 2019-02-15 横店集团东磁股份有限公司 A kind of NiCuZn Ferrite Material and its preparation method and application

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030674A (en) * 2014-06-30 2014-09-10 电子科技大学 NiCuZn ferrite material and preparation method thereof
CN104909736A (en) * 2015-05-12 2015-09-16 电子科技大学 Nickel-zinc ferrite material and preparation method thereof
CN105308003A (en) * 2014-05-22 2016-02-03 户田工业株式会社 Sintered ferrite plate and sintered ferrite sheet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105308003A (en) * 2014-05-22 2016-02-03 户田工业株式会社 Sintered ferrite plate and sintered ferrite sheet
CN104030674A (en) * 2014-06-30 2014-09-10 电子科技大学 NiCuZn ferrite material and preparation method thereof
CN104909736A (en) * 2015-05-12 2015-09-16 电子科技大学 Nickel-zinc ferrite material and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李东月: "用于无线充电中的 ＮｉＣｕＺｎ铁氧体屛蔽材料的硏究", 《中国优秀硕士论文全文数据库 工程科技II辑》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109336578A (en) * 2018-06-22 2019-02-15 横店集团东磁股份有限公司 A kind of NiCuZn Ferrite Material and its preparation method and application
CN108911729A (en) * 2018-06-28 2018-11-30 宁波高新区兆丰微晶新材料有限公司 Ni-Zn-Cu system complex ferrite piece and preparation method thereof
CN108773858A (en) * 2018-07-10 2018-11-09 电子科技大学 A kind of pattern-band Surface Wave Absorbing Material and preparation method thereof

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