CN102603279B - High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof - Google Patents
High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof Download PDFInfo
- Publication number
- CN102603279B CN102603279B CN 201210056750 CN201210056750A CN102603279B CN 102603279 B CN102603279 B CN 102603279B CN 201210056750 CN201210056750 CN 201210056750 CN 201210056750 A CN201210056750 A CN 201210056750A CN 102603279 B CN102603279 B CN 102603279B
- Authority
- CN
- China
- Prior art keywords
- nickel
- zinc ferrite
- oxide
- sintering
- principal constituent
- 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.)
- Active
Links
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 230000006698 induction Effects 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 40
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 22
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000011787 zinc oxide Substances 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 6
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims abstract description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000428 cobalt oxide Inorganic materials 0.000 claims abstract description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000009977 dual effect Effects 0.000 claims abstract description 4
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 4
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 3
- 239000000470 constituent Substances 0.000 claims description 21
- 238000005245 sintering Methods 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 9
- 238000010298 pulverizing process Methods 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011236 particulate material Substances 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 229960004643 cupric oxide Drugs 0.000 claims description 4
- 238000004033 diameter control Methods 0.000 claims description 3
- 239000005338 frosted glass Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 2
- 229960001866 silicon dioxide Drugs 0.000 claims description 2
- 239000005751 Copper oxide Substances 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 229910052808 lithium carbonate Inorganic materials 0.000 abstract 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract 1
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229910018605 Ni—Zn Inorganic materials 0.000 description 4
- 229910003962 NiZn Inorganic materials 0.000 description 3
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical group 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Abstract
The invention relates to a high-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite applicable to power inductors and a preparation method of the high-strength high-Bs nickel-zinc ferrite. The nickel-zinc ferrite comprises main components including 49-52.5mol% of ferric oxide, 20-29.5mol% of nickel oxide, 18-28mol% of zinc oxide and 2.5-5mol% of copper oxide, and auxiliary components including, relative to the amount of the main components, 0.03-0.15wt% of calcium carbonate, 0.01-0.05wt% of cobalt oxide, 0.03-0.13wt% of zirconium oxide, 0.03-0.10wt% of lithium carbonate, 0.03-0.15wt% of vanadium pentoxide and 0.01-0.10wt% of silicon dioxide. The main components and the auxiliary components which are oxides are sintered under certain conditions to prepare the nickel-zinc ferrite, the grain size of the sintered nickel-zinc ferrite is 3-5 micrometers, grain boundary is distinct, and the prepared nickel-zinc ferrite has the advantages of high strength and high direct-current offset and meets the dual requirements of miniaturization of power inductors on high strength and high direct-current offset of materials.
Description
Technical field
The invention belongs to the soft magnetic ferrite technical field, be specifically related to high Bs nickel-zinc ferrite of high strength that a kind of power inductance uses and preparation method thereof.
Background technology
The soft magnetic ferrite of suitability for industrialized production mainly comprises MnZn, nickel-zinc-ferrite material two big series, is mainly used in fields such as computer, communication, power supply and consumer electronics product, is the basic function material of electronic industry.Compare with Mn-Zn ferrite, nickel-zinc ferrite has characteristics such as high resistivity, high frequency of utilization, is applicable to and makes the element that various surface mount are used.
More and more come for a short time, more and more thinner along with the electronics mobile termination becomes, employed nickel-zinc ferrite power inductance also needs littler, thinner, and this just requires nickel-zinc ferrite to have good physical strength.In addition along with inversion frequency is more and more higher, function is more and more, requirement to the rated current of little and slim power inductance is also more and more higher, the Bs of material more high (saturation induction density) in general, the direct current biasing characteristic is just more good, and this just requires nickel-zinc ferrite to have higher Bs(saturation induction density).The power inductance miniaturization has proposed the double requirements of physical strength and Bs for nickel-zinc-ferrite material like this.
Have some patents about the manufacture method of nickel-zinc-ferrite material at home, specific as follows:
(1) publication number is CN1100231, and open day is 1995.03.15, and denomination of invention discloses a kind of magnetic core of transformer of NiZn Ferrite Material for the Chinese patent of " transformer of NiZn Ferrite Material or inducer sintering magnetic core ".When being used in the transformer, described magnetic core of transformer demonstrates lower total loss.If most of crystal grain of ferrite sintered body material are one-domain structure, just can reach described low-loss.If average grain size this situation will occur less than 2.8 microns.The preferable range of the average grain size of agglomerated material is 1.3 to 2.6 microns.Preferred δ value is less than 4nm.
(2) publication number is CN1388794, open day is 2003.01.01, denomination of invention discloses a kind of Ferrite Material for the Chinese patent of " Ferrite Material ", it is the ferric oxide that contains specified amount as principal constituent, cupric oxide, the Ferrite Material of the NiCuZn system of zinc oxide and nickel oxide, as ancillary component, the bismuth oxide that contains specified amount, silicon oxide, magnesium oxide, cobalt oxide, therefore constitute Ferrite Material with this, can provide temperature profile extremely good (velocity of variation with respect to the magnetic permeability of temperature variation is little), the quality factor q height, high-intensity NiCuZn series ferrite material.
(3) publication number is CN101575206, open day is 2009.11.11, and denomination of invention discloses a kind of high-frequency high-power Ni-Zn base magnetic ferrite material and manufacture method thereof for the Chinese patent of " high-frequency high-power Ni-Zn base magnetic ferrite material and manufacture method thereof ".Be doping to by principal constituent, ion substitution composition and compound combination and be grouped into, its principal constituent is: Fe
2O
3, ZnO, surplus is NiO; The ion substitution composition is: Co
3O
4, MnCO
3, contain Co among the CuO
3O
4One or more; The compound combination is doped to: V
2O
5, Bi
2O
3, Ta
2O
5, ZrO
2, CuO, Nb
2O
5, Co
3O
4In 2 ~ 3 kinds.This invention is by the formulation optimization unitized design, and employing high-frequency high-power Ni-Zn base magnetic ferrite material manufacture method, obtains the NiZn based ferrite material of high electromagnetic performance, high strength and high-frequency low-consumption.The material of this invention is used for the powerful device of 1 ~ 30MHz, as magnetic cores such as transformer, inductor block, wave filter and tuners.
(4) publication number is CN101891456A, and open day is 2010.11.24, and denomination of invention discloses a kind of high rupture strength nickel-zinc soft magnetic ferrite material for the Chinese patent of " a kind of high rupture strength nickel-zinc soft magnetic ferrite material and manufacture method thereof ".The main formula that counts by molar: ferric oxide Fe
2O
335～50mol%, zinc oxide ZnO 8～15mol%, nickel protoxide NiO 30～40mol%, cupric oxide CuO 5～11mol%.This invention provides a kind of Ni-Zn soft magnetic ferrite material with higher folding strength.
Summary of the invention
For the physical strength of nickel-zinc-ferrite material and the double requirements of Bs, the purpose of this invention is to provide the high Bs nickel-zinc ferrite of high strength that a kind of power inductance is used at the miniaturization of power inductance.
In order to achieve the above object, the present invention takes following technical scheme:
The high Bs nickel-zinc ferrite of a kind of high strength, it comprises principal constituent and minor component, principal constituent is: ferric oxide, nickel oxide, zinc oxide and cupric oxide, described principal constituent is as follows in the content of standard substance separately:
Fe
2O
3?49~52.5mol%、NiO?20~29.5mol%、ZnO?18~28?mol%、CuO?2.5~5?mol%；
Described minor component comprises calcium carbonate, cobalt oxide, zirconium white, Quilonum Retard, Vanadium Pentoxide in FLAKES and silicon-dioxide, described relatively principal constituent total amount, and described minor component is as follows in the content of standard substance separately:
CaCO
3?0.03~0.15wt%、Co
2O
3?0.01~0.05wt%、ZrO
2?0.03~0.13wt%、Li
2CO
3?0.03~0.10wt%、V
2O
5?0.03~0.15wt%、SiO
2?0.01~0.10wt%。
As a kind of preferred, described relatively principal constituent total amount, described minor component is as follows in the content of standard substance separately: CaCO
30.04wt%, Co
2O
30.02wt%, ZrO
20.08wt%, Li
2CO
30.05wt%, V
2O
50.05wt%, SiO
20.04wt%.
The preparation method of the high Bs nickel-zinc ferrite of a kind of described high strength comprises mixing, pre-burning, pulverizing, granulation, compacting and sintering step successively, wherein:
(1) mix: by carrying out dry mixed behind the principal constituent proportion ingredient, mixing time is 100 ~ 120 minutes; Described principal constituent in the content of standard substance separately is: Fe
2O
349 ~ 52.5mol%, NiO 20 ~ 29.5mol%, ZnO 18 ~ 28 mol%, CuO 2.5 ~ 5 mol%;
(2) pre-burning: materials mixed is carried out pre-burning in pushed bat kiln, calcined temperature is controlled at 960 ± 20 ℃, and the pre-burning time is 360 ~ 500 minutes;
(3) pulverize: carry out wet pulverization add minor component in the pre-imitation frosted glass of principal constituent that the step pre-burning obtains after, the pulverizing time is 120 ~ 180 minutes, pulverizes back slip particle diameter control at 0.9 ~ 1.5 μ m; Described minor component in the content of standard substance separately is: CaCO
30.03 ~ 0.15wt%, Co
2O
30.01 ~ 0.05wt%, ZrO
20.03 ~ 0.13wt%, Li
2CO
30.03 ~ 0.10wt%, V
2O
50.03 ~ 0.15wt%, SiO
20.01 ~ 0.10wt%;
(4) granulation: add 1.5% the PVA be equivalent to slip weight at the slip in step, adopt mist projection granulating, obtain particulate material;
(5) compacting: the particulate material that will go up the step adopts the powder former compacting to obtain blank, and the pressed density control of blank is at 3.2 ± 0.15g/cm
3
(6) sintering: carry out sintering in resistance furnace, sintering temperature is controlled at 1180 ℃ ~ 1250 ℃, is incubated 240 ~ 360 minutes, and sintering atmosphere is air, and sintering cools to room temperature with the furnace after finishing.
As a kind of preferred, in pulverising step ⑶, the described relatively principal constituent total amount of described minor component in the content of standard substance separately is: CaCO
30.04wt%, Co
2O
30.02wt%, ZrO
20.08wt%, Li
2CO
30.05wt%, V
2O
50.05wt%, SiO
20.04wt%.
The present invention adopts rational main formula, by adjusting Fe
2O
3Content adjust the saturation induction density of material; Adjust the frequency of utilization of material by the content of adjusting NiO; Adjust the magnetic permeability of material by the content of adjusting ZnO.In minor component, add Co
2O
3Improve frequency response characteristic and the magnetic permeability characteristic of material; In minor component, add CaCO
3With SiO
2Combination increases the thickness of crystal boundary, reduces the high band relative loss factor factor; In minor component, add Li
2CO
3, reduce the high band relative loss factor factor; In minor component, add V
2O
5Reduce sintering temperature; In minor component, add ZrO
2, further adjust material crystals structure and crystal boundary distribution by production technique again, thereby obtain excellent mechanical intensity and higher Bs.The crystallization grain-size of the prepared goods of preparation method of the present invention is 3～5 μ m, the crystal boundary distinctness.This material is applicable to DC-DC power module miniaturization and the slimming of power inductance.
The performance index of material are as follows:
(1) initial permeability μ
i: 400 ± 25%,
(2) saturation induction density Bs:480 ± 5%,
(3) Curie temperature Tc: 〉=220 ℃,
(4) physical strength S: 〉=210MPa.
Description of drawings
Fig. 1 is magnetic stripe mechanical strength test synoptic diagram.1-magnetic stripe wherein, 2-pressure head, 3-pole bearing.
Fig. 2 is magnet ring direct current biasing characteristic comparison diagram.
Fig. 3 is material section SEM photo.Wherein (a) is the section SEM photo of Comparative Examples 2; (b) the section SEM photo of embodiment 2.
Embodiment
Below according to specific embodiment explanation the present invention, but the present invention is not limited to these embodiment.
The high Bs nickel-zinc ferrite of high strength of the present invention adopts the conventional oxide manufactured, and concrete steps are as follows successively:
(1) mixing: by table 1(embodiment and Comparative Examples) carry out dry mixed behind the described principal constituent proportion ingredient, mixing time is 100 ~ 120 minutes;
(2) pre-burning: materials mixed is carried out pre-burning in pushed bat kiln, calcined temperature is controlled at 960 ± 20 ℃, and the pre-burning time is 360 ~ 500 minutes;
(3) pulverize: carry out wet pulverization add minor component in the pre-imitation frosted glass of principal constituent that the step pre-burning obtains after, the pulverizing time is 120 ~ 180 minutes, pulverizes back slip particle diameter control at 0.9 ~ 1.5 μ m;
(4) granulation: add 1.5% the PVA be equivalent to slip weight at the slip in step, adopt mist projection granulating, obtain particulate material;
(5) compacting: the particulate material that will go up the step adopts the powder former compacting to obtain blank, and the pressed density control of blank is at 3.2 ± 0.15g/cm
3
(6) sintering: carry out sintering in resistance furnace, sintering temperature is controlled at 1180 ℃ ~ 1250 ℃, is incubated 240 ~ 360 minutes, and sintering atmosphere is air, and sintering cools to room temperature with the furnace after finishing.
Make described nickel-zinc ferrite goods (magnetic stripe sample R-4.0 * 7.1 * 40, magnet ring sample T12.7 * 7.9 * 6.5) by above operation.
Magnet ring behind the sintering and magnetic stripe are tested respectively and estimated.Under number of turn N=20Ts condition, with the initial permeability μ of HP-4284A type LCR tester test magnet ring sample
iCooperate the PHH-101 high-temperature test chamber, the Curie temperature Tc of test magnet ring; Cooperate the PHH-101 high-temperature test chamber, with the saturation induction density Bs of SY-8258 type B-H analyser specimen; Intensity is according to the physical strength S of method test magnetic stripe shown in Figure 1.
The composition proportion of table 1 embodiment and Comparative Examples
The magnetic property of table 2 embodiment and Comparative Examples
| Project | μ i | Bs（25℃） | Tc | S | Estimate |
| Unit | - | mT | ℃ | Mpa | - |
| Index | 400±25% | 480±5% | ≥220 | ≥210 | - |
| Embodiment 1 | 415 | 483 | ≥220 | 245 | |
| Embodiment | |||||
| 2 | 395 | 485 | ≥220 | 250 | |
| Embodiment | |||||
| 3 | 373 | 479 | ≥220 | 243 | OK |
| Embodiment 4 | 375 | 475 | ≥220 | 223 | OK |
| Embodiment 5 | 378 | 473 | ≥220 | 220 | OK |
| Comparative Examples 1 | *295 | *450 | ≥220 | 220 | NG |
| Comparative Examples 2 | 380 | *445 | ≥220 | *175 | NG |
| Comparative Examples 3 | 305 | *430 | ≥220 | *190 | NG |
| Comparative Examples 4 | 325 | *432 | ≥220 | *185 | NG |
| Comparative Examples 5 | 335 | *438 | ≥220 | *195 | NG |
Attention: (1) surpasses additional " ※ " of upper specification limit, surpasses additional " * " of specification lower limit; (2) in Tc one hurdle, 〉=220 expression Tc are at least greater than 220 degree.
Table 2 has been listed performance and the evaluation of embodiment and Comparative Examples, as can be seen from Table 2, embodiments of the invention and Comparative Examples are compared, and the present invention has improved physical strength and the Bs of material effectively, and can keep corresponding initial permeability, and has high Curie temperature.As can be seen from Figure 2, the direct current biasing characteristic with embodiment of higher Bs obviously is better than Comparative Examples.The microtexture (see figure 3) of comparative example and Comparative Examples, the crystallization of Comparative Examples material is thicker, and crystallization is inhomogeneous, and grain-size is 10～30 μ m; The crystallization of embodiment is more even, the crystal boundary distinctness, and grain-size is 3～5 μ m.The homogenizing of grain refining and crystallization is the physical strength of embodiment and the major cause that Bs promotes significantly with respect to Comparative Examples.Material of the present invention should be able to satisfy the mini power inductance to the high mechanical strength of nickel Zinc material and the dual performance requriements of high Bs.
Specific embodiment described in the invention only is that the present invention is illustrated, the expert of correlative technology field or technician can make in various degree modification to described specific embodiment, replenish or substitute with similar mode, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (4)
1. high Bs nickel-zinc ferrite of high strength, dual characteristics with high strength and high direct current biasing, be used for power inductance, can satisfy the power inductance miniaturization for the intensity of material and the dual requirements of direct current biasing, it comprises principal constituent and minor component, principal constituent is: ferric oxide, nickel oxide, zinc oxide and cupric oxide, and described principal constituent is as follows in the content of standard substance separately:
Fe
2O
3?49~52.5mol%、NiO?20~29.5mol%、ZnO?18~28?mol%、CuO?2.5~5?mol%；
Described minor component comprises calcium carbonate, cobalt oxide, zirconium white, Quilonum Retard, Vanadium Pentoxide in FLAKES and silicon-dioxide, described relatively principal constituent total amount, and described minor component is as follows in the content of standard substance separately:
CaCO
3?0.03~0.15wt%、Co
2O
3?0.01~0.05wt%、ZrO
2?0.03~0.13wt%、Li
2CO
3?0.03~0.10wt%、V
2O
5?0.03~0.15wt%、SiO
2?0.01~0.10wt%。
2. the high Bs nickel-zinc ferrite of high strength according to claim 1 is characterized in that: described relatively principal constituent total amount, described minor component is as follows in the content of standard substance separately: CaCO
30.04wt%, Co
2O
30.02wt%, ZrO
20.08wt%, Li
2CO
30.05wt%, V
2O
50.05wt%, SiO
20.04wt%.
3. the preparation method of the high Bs nickel-zinc ferrite of high strength as claimed in claim 1 or 2 is characterized in that, comprises mixing, pre-burning, pulverizing, granulation, compacting and sintering step successively, wherein:
(1) mix: by carrying out dry mixed behind the principal constituent proportion ingredient, mixing time is 100 ~ 120 minutes;
(2) pre-burning: materials mixed is carried out pre-burning in pushed bat kiln, calcined temperature is controlled at 960 ± 20 ℃, and the pre-burning time is 360 ~ 500 minutes;
(3) pulverize: carry out wet pulverization add minor component in the pre-imitation frosted glass of principal constituent that the step pre-burning obtains after, the pulverizing time is 120 ~ 180 minutes, pulverizes back slip particle diameter control at 0.9 ~ 1.5 μ m;
(4) granulation: add 1.5% the PVA be equivalent to slip weight at the slip in step, adopt mist projection granulating, obtain particulate material;
(5) compacting: the particulate material that will go up the step adopts the powder former compacting to obtain blank, and the pressed density control of blank is at 3.2 ± 0.15g/cm
3
(6) sintering: carry out sintering in resistance furnace, sintering temperature is controlled at 1180 ℃ ~ 1250 ℃, is incubated 240 ~ 360 minutes, and sintering atmosphere is air, and sintering cools to room temperature with the furnace after finishing.
4. the high Bs nickel-zinc ferrite of high strength as claimed in claim 1 or 2 is characterized in that the crystallization grain-size of goods is 3～5 μ m behind the sintering, the crystal boundary distinctness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210056750 CN102603279B (en) | 2012-03-07 | 2012-03-07 | High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210056750 CN102603279B (en) | 2012-03-07 | 2012-03-07 | High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102603279A CN102603279A (en) | 2012-07-25 |
| CN102603279B true CN102603279B (en) | 2013-08-21 |
Family
ID=46521138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210056750 Active CN102603279B (en) | 2012-03-07 | 2012-03-07 | High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102603279B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6147638B2 (en) * | 2013-10-07 | 2017-06-14 | Tdk株式会社 | Ferrite composition and electronic component |
| CN104774003B (en) * | 2015-04-22 | 2017-03-29 | 深圳振华富电子有限公司 | Nickel-copper-zinc ferrite and preparation method thereof |
| CN104891975A (en) * | 2015-04-24 | 2015-09-09 | 马鞍山科信咨询有限公司 | High flexural strength nickel-zinc soft magnetic ferrite material and preparation method thereof |
| CN104891976A (en) * | 2015-04-24 | 2015-09-09 | 马鞍山科信咨询有限公司 | Low-loss nickel-zinc ferrite material and preparation method |
| CN104987056B (en) * | 2015-06-30 | 2018-01-12 | 电子科技大学 | A kind of ferroelectric and ferromagnetic composite material and preparation method thereof |
| CN105174931B (en) * | 2015-08-29 | 2019-04-12 | 电子科技大学 | The preparation method of NiCuZn Ferrite Material |
| CN105272195A (en) * | 2015-11-23 | 2016-01-27 | 杭州电子科技大学 | NiZn series ferrite wave-absorbing material core and manufacturing method thereof |
| CN107778001B (en) * | 2017-10-10 | 2018-12-28 | 浙江大学 | A method of generating nanometer crystal boundary high resistivity film reduces nickel-zinc ferrite power loss |
| CN108314440B (en) * | 2018-01-22 | 2020-12-22 | 天通控股股份有限公司 | Wide-frequency wide-temperature low-temperature-factor high-strength nickel-zinc ferrite and preparation method thereof |
| CN108530048B (en) * | 2018-05-15 | 2020-06-19 | 深圳顺络电子股份有限公司 | High Bs ferrite material and preparation method thereof |
| CN110436910A (en) * | 2019-08-19 | 2019-11-12 | 中山尔比特磁电科技有限公司 | A kind of preparation method of high Bs material |
| CN111848148B (en) * | 2020-08-03 | 2021-06-18 | 广东泛瑞新材料有限公司 | High Bs nickel-zinc ferrite and preparation method thereof |
| CN112661501B (en) * | 2021-01-08 | 2022-10-18 | 广安市华蓥山领创电子有限公司 | NiZn ferrite material for high-frequency power conversion and preparation method thereof |
| CN113461414A (en) * | 2021-07-06 | 2021-10-01 | 深圳市华扬通信技术有限公司 | Ferrite suitable for millimeter wave microstrip circulator and preparation method and application thereof |
| CN115180935B (en) * | 2022-07-08 | 2023-11-03 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Millimeter wave LTCF green porcelain belt preparation method |
| CN115403366B (en) * | 2022-08-24 | 2023-05-12 | 厦门大学 | Lithium-doped nickel-zinc ferrite material and preparation method thereof |
| CN115838282A (en) * | 2022-10-20 | 2023-03-24 | 上海华源磁业股份有限公司 | Preparation method of high-frequency low-loss ferrite material |
| CN116477934A (en) * | 2023-05-16 | 2023-07-25 | 苏美尔磁性电子(惠州)有限公司 | Preparation process of nickel-zinc ferrite core |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1750182A (en) * | 2004-09-13 | 2006-03-22 | 广东风华高新科技集团有限公司 | Nickel-zinc soft magnet ferrite material, inductor product and its producing method |
| CN101728048A (en) * | 2010-02-06 | 2010-06-09 | 天通控股股份有限公司 | Wide-temperature low-distortion mangan zinc ferrite and preparation method thereof |
-
2012
- 2012-03-07 CN CN 201210056750 patent/CN102603279B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1750182A (en) * | 2004-09-13 | 2006-03-22 | 广东风华高新科技集团有限公司 | Nickel-zinc soft magnet ferrite material, inductor product and its producing method |
| CN101728048A (en) * | 2010-02-06 | 2010-06-09 | 天通控股股份有限公司 | Wide-temperature low-distortion mangan zinc ferrite and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102603279A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102603279B (en) | High-strength high-Bs (saturation magnetic induction intensity) nickel-zinc ferrite and preparation method thereof | |
| CN102603280B (en) | High-Q value nickel and zinc ferrite with initial permeability of 70 and preparation method thereof | |
| KR101403728B1 (en) | Ni-zn-cu ferrite powder, green sheet and sintered body | |
| CN102807361B (en) | Nickel-zinc ferrite material for wireless signal sensing, sheet core and preparation method thereof | |
| US9984799B2 (en) | Ferrite composition and electronic component | |
| TWI460320B (en) | Effective substitutions for rare earth metals in compositions and materials for electronic applications | |
| CN101404197B (en) | Manganese zinc soft magnetic ferrite and production method for its magnetic core | |
| CN102603278B (en) | Stress-resistant nickel zinc ferrite with initial permeability of 120, and preparation method of stress-resistant nickel zinc ferrite | |
| CN106587977A (en) | Power type nickel-zinc ferrite material and preparation method thereof | |
| CN112979301B (en) | High-frequency high-temperature low-loss MnZn power ferrite material and preparation method thereof | |
| CN102432279B (en) | High-strength thermal-shock-resistant nickel zinc ferrite and preparation method thereof | |
| CN104230323A (en) | M-type calcium-lanthanum-cobalt permanent magnetic ferrite and preparation method thereof | |
| CN104150894B (en) | A kind of heat shock resistance nickel-zinc ferrite and preparation method thereof | |
| CN101913851A (en) | Wide-temperature high-permeability Mn-Zn soft magnetic ferrite material and magnetic core prepared therefrom as well as preparation method thereof | |
| CN105198395A (en) | Heat shock-resistant power Ni-Zn ferrite and preparation method thereof | |
| CN104529423A (en) | Low-temperature-factor anti-stress nickel zinc ferrite and preparation method thereof | |
| CN100425570C (en) | Mn-Zn ferrite with wide temperature range and high magnetic conductivity and its prepn process | |
| CN104177075A (en) | Heat-shock-resistant soft magnetic ferrite material and preparation method thereof | |
| US20090050840A1 (en) | Ferrite material | |
| CN102390987A (en) | Nickel-zinc ferrite with super-low power consumption and preparation method thereof | |
| CN104230321A (en) | M-type calcium permanent magnetic ferrite and preparation method thereof | |
| CN103848620B (en) | LiMnZn ferrite material and preparation method thereof | |
| CN102063989B (en) | High-saturation magnetic flux, high-direct current superposition and low-loss soft magnetic material and preparation method thereof | |
| CN104129980A (en) | Low-sintering-temperature soft magnetic ferrite material and preparation method thereof | |
| CN101552067B (en) | MnZn ferrite magnetic material with high saturation magnetization and high impedance and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |