CN103739280A - Mn-Zn ferrite material with high permeability and broadband characteristic - Google Patents
Mn-Zn ferrite material with high permeability and broadband characteristic Download PDFInfo
- Publication number
- CN103739280A CN103739280A CN201310705005.XA CN201310705005A CN103739280A CN 103739280 A CN103739280 A CN 103739280A CN 201310705005 A CN201310705005 A CN 201310705005A CN 103739280 A CN103739280 A CN 103739280A
- Authority
- CN
- China
- Prior art keywords
- ferrite material
- additive
- formula
- under
- high permeability
- 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
Links
Landscapes
- Magnetic Ceramics (AREA)
Abstract
The invention relates to a Mn-Zn ferrite material and in particular relates to a Mn-Zn ferrite material with high permeability and broadband characteristic. The Mn-Zn ferrite material comprises a main component and an additive, wherein a formula of the main component comprises 65-70wt% of Fe2O3, 13-16wt% of ZnO and the balance of Mn3O4; a formula of the additive comprises 0.06-0.08wt% of Mo2O3, 0.02-0.03wt% of Bi2O3, 0.025-0.075wt% of CaCO3, 0.001-0.005wt% of SiO2 and 0.005-0.01wt% of Nb2O5; percentages by weight of components of the additive are obtained by calculating according to total weight of the main component. The Mn-Zn ferrite material has double characteristics of high permeability and broadband characteristic and is mainly applied to electronic circuit wideband transformers.
Description
Technical field
The present invention relates to a kind of Mn-Zn Ferrite Material, specifically relate to a kind of Mn-Zn Ferrite Material with high magnetic permeability, broadband properties.
Background technology
Soft magnetic ferrite is a kind of very important basic function material in national economy, is for example widely used in, in each electronic product: signal equipment, household electrical appliance, computer, automobile etc.In recent years, electronic product is to light, thin, short, little future development, and this performance to soft magnetic ferrite is had higher requirement, and wherein high-permeability Mn-Zn material is along with market development variation is the fastest, one of market outlook best material.High Initial Permeability MnZn Ferrite Materials is mainly used in electronic circuit wide-band transformer, the pulse transformer in the fields such as Integrated Service Digital Network, Local Area Network, wide area network (WAN), background illumination, the fields such as anti-electromagnetic wave wave filter.The magnetic core in these fields is to work under feeble field substantially, and at this moment the high magnetic permeability of material will demonstrate unique superiority.First, when the magnetic permeability of material is higher, the inductance value that less coil turn just can acquiring demand, and then the loss that effectively reduces the direct current resistance of coil and caused by it; Secondly, use the high material of magnetic permeability can obviously reduce the volume of transformer, be conducive to miniaturization, the lightweight of device and system.These features have been complied with the development trend of electronic product, and its output has accounted for the more than 25% of whole soft magnetic ferrite ultimate productions at present.Along with the high speed development of the electronics and information industries such as communication, computer, network, its market requirement is with average annual more than 20% speed rapid growth.Therefore, relevant enterprise is all paid much attention to the research of high-permeability Mn-Zn ferrite both at home and abroad.
Because requiring Mn-Zn Ferrite Material, application market not only to there is high initial permeability, must there is good temperature profile simultaneously, frequency response characteristic, low loss, high impedance and good stack performance etc., therefore, the research in high magnetic permeability field has been transferred to raising over-all properties and has been come from simple pursuit high magnetic permeability aspect, requirement is when improving magnetic permeability, also to take into account other performance perameters, make material property reach a good balance, there is following over-all properties: higher saturation magnetic flux density Bs, better direct current biasing characteristic DC-Bias, lower loss, lower total harmonic distortion coefficient (THD), wider frequency of utilization and wider temperature range.And have broadband properties, being to solve the key that wider frequency of utilization requires, but will making Mn-Zn Ferrite Material when having high magnetic permeability, have broadband properties, is to need the difficult problem that this area scientific and technical personnel need to solve.
Summary of the invention
The object of this invention is to provide a kind of Mn-Zn Ferrite Material with high magnetic permeability, broadband properties, for electronic product lays the foundation to miniaturization, lightweight future development.
Object of the present invention can be achieved through the following technical solutions:
A Mn-Zn Ferrite Material with high magnetic permeability, broadband properties, is comprised of principal constituent and additive, it is characterized in that:
The formula of described principal constituent is 65～70wt%Fe
2o
3, 13～16wt%ZnO, surplus be Mn
3o
4;
The formula of described additive is 0.06～0.08wt%Mo
2o
3, 0.02～0.03wt%Bi
2o
3, 0.025～0.075wt%CaCO
3, 0.001～0.005wt%SiO
2with 0.005～0.01wt%Nb
2o
5, the weight percent of each composition of wherein said additive is the total weight of relatively main composition and obtaining.
The weight percent that total add-on of described additive accounts for main composition gross weight is 0.13～0.19%.
During preparation, first principal constituent and additive are weighed according to formula, then successively through mixing, pre-burning, just pulverize, add sand milling after additive, mist projection granulating, dry-pressing formed, seven steps of sintering.
Compared with prior art, beneficial effect of the present invention is:
1, described Mn-Zn Ferrite Material has high magnetic permeability and broadband properties concurrently, that is: the initial permeability μ i under 25 ℃, 10KHz, 0.8mA condition reaches 8000-12000, and more than can remaining to 200kHz; Curie temperature Tc reaches 120-130 ℃; Specific loss coefficient tg δ/μ i under 25 ℃, 10KHz, 0.8mA condition reaches 1.2 × 10
-6; Specific loss coefficient tg δ/μ i under 25 ℃, 100KHz, 0.8mA condition is not more than 1.3 × 10
-6.This Mn-Zn Ferrite Material of the present invention has dual nature, can be used for electronic circuit wide-band transformer.
2, described Mn-Zn Ferrite Material has high magnetic permeability and broadband properties dual nature, can be used for electronic circuit wide-band transformer, is conducive to electronic product to miniaturization, lightweight future development.
3, the preparation technology of described Mn-Zn Ferrite Material is simple, easy to operate.
Embodiment
Below in conjunction with embodiment, the present invention is done to further detailed, complete explanation:
Embodiment 1
1, by formula, weigh
The formula of described principal constituent is 65.6wt%Fe
2o
3, 14wt%ZnO, 20.4wt%Mn
3o
4; The formula of described additive is 0.075wt%Mo
2o
3, 0.025wt%Bi
2o
3, 0.06wt%CaCO
3, 0.0025wt%SiO
2and 0.01wt%Nb
2o
5, the weight percent of each composition of wherein said additive is the total weight of relatively main composition and obtaining.
2, preparation technology
Load weighted principal constituent is mixed 25 minutes; Under 820 ℃ of conditions, be incubated pre-burning 2 hours; Just pulverize 25 minutes; Sand milling 30 minutes, fine powder is broken together in sand milling, to add additive; Then granulation, dry-pressing formed, the compacting of sample is of a size of φ 29 × 10 × 5.5(external diameter × height × wall thickness) sample ring; Finally sintering under 1395 ± 5 ℃ of conditions, is incubated 5 hours, controls oxygen content in 9% left and right the best, is cooled to room temperature.Wherein, temperature rise rate during sintering is 150-200 ℃/h, and rate of temperature fall is 150-200 ℃/h.
3, detected result
The sample making in the present embodiment is detected, and detected result is as follows:
Initial permeability μ under 25 ℃, 10KHz, 0.8mA condition
ireach 10946, and μ i still remains to 10446 when 200kHz;
Curie temperature Tc reaches 130 ℃;
Specific loss coefficient tg δ/μ i under 25 ℃, 10KHz, 0.8mA condition reaches 1.2 × 10
-6; Specific loss coefficient tg δ/μ i under 25 ℃, 100KHz, 0.8mA condition only has 1.2 × 10
-6.
Embodiment 2
1, by formula, weigh
The formula of described principal constituent is 70.9wt%Fe
2o
3, 6.7wt%ZnO, 22.4wt%Mn
3o
4;
The formula of described additive is 0.08wt%Mo
2o
3, 0.025wt%Bi
2o
3, 0.07wt%CaCO
3, 0.00375wt%SiO
2and 0.01wt%Nb
2o
5, the weight percent of each composition of wherein said additive is the total weight of relatively main composition and obtaining.
2, preparation technology
Load weighted principal constituent is mixed 25 minutes; Under 820 ℃ of conditions, be incubated pre-burning 2 hours; Just pulverize 25 minutes; Sand milling 30 minutes, fine powder is broken together in sand milling, to add additive; Then granulation, dry-pressing formed, the compacting of sample is of a size of φ 29 × 10 × 5.5(external diameter × height × wall thickness) sample ring; Finally sintering under 1395 ± 5 ℃ of conditions, is incubated 5 hours, controls oxygen content in 9% left and right the best, is cooled to room temperature.Wherein, temperature rise rate during sintering is 150-200 ℃/h, and rate of temperature fall is 150-200 ℃/h.
3, detected result
The sample making in the present embodiment is detected, and detected result is as follows:
Initial permeability μ under 25 ℃, 10KHz, 0.8mA condition
ireach 11402, and μ i still remains to 10750 when 200kHz;
Curie temperature Tc reaches 130 ℃;
Specific loss coefficient tg δ/μ i under 25 ℃, 10KHz, 0.8mA condition reaches 1.2 × 10
-6; Specific loss coefficient tg δ/μ i under 25 ℃, 100KHz, 0.8mA condition only has 1.2 × 10
-6.
Embodiment 3
1, by formula, weigh
The formula of described principal constituent is 65.7wt%Fe
2o
3, 14.4wt%ZnO, 19.9wt%Mn
3o
4;
The formula of described additive is 0.08wt%Mo
2o
3, 0.025wt%Bi
2o
3, 0.07wt%CaCO
3, 0.0025wt%SiO
2and 0.01wt%Nb
2o
5, the weight percent of each composition of wherein said additive is the total weight of relatively main composition and obtaining.
2, preparation technology
Load weighted principal constituent is mixed 25 minutes; Under 820 ℃ of conditions, be incubated pre-burning 2 hours; Just pulverize 25 minutes; Sand milling 30 minutes, fine powder is broken together in sand milling, to add additive; Then granulation, dry-pressing formed, the compacting of sample is of a size of φ 29 × 10 × 5.5(external diameter × height × wall thickness) sample ring; Finally sintering under 1395 ± 5 ℃ of conditions, is incubated 5 hours, controls oxygen content in 9% left and right the best, is cooled to room temperature.Wherein, temperature rise rate during sintering is 150-200 ℃/h, and rate of temperature fall is 150-200 ℃/h.
3, detected result
The sample making in the present embodiment is detected, and detected result is as follows:
Initial permeability μ under 25 ℃, 10KHz, 0.8mA condition
ireach 10106, and μ i still remains to 9929 when 200kHz;
Curie temperature Tc reaches 130 ℃;
Specific loss coefficient tg δ/μ i under 25 ℃, 10KHz, 0.8mA condition reaches 1.2 × 10
-6; Specific loss coefficient tg δ/μ i under 25 ℃, 100KHz, 0.8mA condition only has 1.0 × 10
-6.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the disclosed content of this embodiment.So every, do not depart from the equivalence completing under spirit disclosed in this invention or revise, all falling into the scope of protection of the invention.
Claims (2)
1. a Mn-Zn Ferrite Material with high magnetic permeability, broadband properties, is comprised of principal constituent and additive, it is characterized in that:
The formula of described principal constituent is 65～70wt%Fe
2o
3, 13～16wt%ZnO, surplus be Mn
3o
4;
The formula of described additive is 0.06～0.08wt%Mo
2o
3, 0.02～0.03wt%Bi
2o
3, 0.025～0.075wt%CaCO
3, 0.001～0.005wt%SiO
2with 0.005～0.01wt%Nb
2o
5, the weight percent of each composition of wherein said additive is the total weight of relatively main composition and obtaining.
2. the Mn-Zn Ferrite Material with high magnetic permeability, broadband properties according to claim 1, is characterized in that, the weight percent that total add-on of described additive accounts for main composition gross weight is 0.13～0.19%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705005.XA CN103739280A (en) | 2013-12-19 | 2013-12-19 | Mn-Zn ferrite material with high permeability and broadband characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705005.XA CN103739280A (en) | 2013-12-19 | 2013-12-19 | Mn-Zn ferrite material with high permeability and broadband characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103739280A true CN103739280A (en) | 2014-04-23 |
Family
ID=50496372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310705005.XA Pending CN103739280A (en) | 2013-12-19 | 2013-12-19 | Mn-Zn ferrite material with high permeability and broadband characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103739280A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446413A (en) * | 2014-11-14 | 2015-03-25 | 无锡信大气象传感网科技有限公司 | Ferrite material for heat-sensitive sensor |
| CN104446426A (en) * | 2014-11-14 | 2015-03-25 | 无锡信大气象传感网科技有限公司 | High-magnetic permeability and low-loss ferrite material for sensor |
| CN104478427A (en) * | 2014-11-14 | 2015-04-01 | 无锡信大气象传感网科技有限公司 | Sensor use temperature-sensitive magnetic core |
| CN107382302A (en) * | 2017-06-13 | 2017-11-24 | 泰州茂翔电子器材有限公司 | A kind of excellent 15K Ferrite Materials of broadband properties |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686928A (en) * | 2005-03-21 | 2005-10-26 | 乳源瑶族自治县东阳光实业发展有限公司 | High magnetic permeability ferrite in manganese zinc series of having excellent frequency characteristic and preparation method |
| CN101231902A (en) * | 2007-09-25 | 2008-07-30 | 横店集团东磁股份有限公司 | Mn-Zn ferrite magnetic material with high magnetoconductivity and high impedance and method for making the same |
| CN101475366A (en) * | 2008-12-30 | 2009-07-08 | 横店集团东磁股份有限公司 | Wide band manganese-zinc ferrite material with high magnetic conductivity and preparation thereof |
-
2013
- 2013-12-19 CN CN201310705005.XA patent/CN103739280A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686928A (en) * | 2005-03-21 | 2005-10-26 | 乳源瑶族自治县东阳光实业发展有限公司 | High magnetic permeability ferrite in manganese zinc series of having excellent frequency characteristic and preparation method |
| CN101231902A (en) * | 2007-09-25 | 2008-07-30 | 横店集团东磁股份有限公司 | Mn-Zn ferrite magnetic material with high magnetoconductivity and high impedance and method for making the same |
| CN101475366A (en) * | 2008-12-30 | 2009-07-08 | 横店集团东磁股份有限公司 | Wide band manganese-zinc ferrite material with high magnetic conductivity and preparation thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446413A (en) * | 2014-11-14 | 2015-03-25 | 无锡信大气象传感网科技有限公司 | Ferrite material for heat-sensitive sensor |
| CN104446426A (en) * | 2014-11-14 | 2015-03-25 | 无锡信大气象传感网科技有限公司 | High-magnetic permeability and low-loss ferrite material for sensor |
| CN104478427A (en) * | 2014-11-14 | 2015-04-01 | 无锡信大气象传感网科技有限公司 | Sensor use temperature-sensitive magnetic core |
| CN104478427B (en) * | 2014-11-14 | 2016-04-27 | 无锡信大气象传感网科技有限公司 | A kind of sensor thermosensitive magnentic core |
| CN104446413B (en) * | 2014-11-14 | 2016-08-24 | 无锡信大气象传感网科技有限公司 | A kind of heat-sensitive sensor Ferrite Material |
| CN107382302A (en) * | 2017-06-13 | 2017-11-24 | 泰州茂翔电子器材有限公司 | A kind of excellent 15K Ferrite Materials of broadband properties |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107129291B (en) | With high frequency low-temperature coefficient low-loss MnZn soft magnetic ferrite and preparation method thereof | |
| CN101859621B (en) | MnZn ferrite material with high magnetic conductivity and manufacturing method thereof | |
| CN101236819B (en) | A nickel-copper-zinc ferrite and its making method | |
| CN102231312B (en) | Low-total harmonic distortion (THD) wideband high-permeability MnZn ferrite material and manufacturing 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 | |
| CN104193317B (en) | Anti-biased low-temperature sintering NiCuZn Ferrite Material and preparation method thereof | |
| CN103833346B (en) | Wideband MnZn ferrite material and preparation process thereof | |
| US10679780B2 (en) | Composite soft magnetic material and preparation method for same | |
| CN101857427A (en) | High-frequency low-loss MnZn ferrite material and manufacturing method thereof | |
| US6991742B2 (en) | Mn-Zn ferrite and coil component with magnetic core made of same | |
| CN102390984A (en) | NiZn (nickel zinc) ferrite material with high magnetic conductivity and high Curie temperature and preparation method thereof | |
| CN103739280A (en) | Mn-Zn ferrite material with high permeability and broadband characteristic | |
| CN111138181A (en) | Broadband high-impedance manganese-zinc ferrite material and preparation method thereof | |
| CN104193314A (en) | High-permeability soft magnetic ferrite material and preparation method thereof | |
| JP2018517288A (en) | Soft magnetic MnZn-based power ferrite | |
| CN104200944A (en) | High-Q-value composite soft magnetic materials and preparing method thereof | |
| CN104944933A (en) | Preparation method for ferrite core with high inductance and high magnetic conductivity for high-frequency transformer | |
| CN104402424A (en) | Nickel-zinc ferrite material having high saturation magnetic flux density, high direct current superposition, and high Curie temperature, and preparation method thereof | |
| CN103693951B (en) | Anti-electromagnetic interference manganese zinc ferrite material and preparation method thereof | |
| CN111138180A (en) | Broadband high-impedance manganese-zinc ferrite material and preparation method thereof | |
| Huan et al. | Effects of SnO 2 on DC-bias-superposition characteristic of the low-temperature-fired NiCuZn ferrites | |
| CN103214233B (en) | High Tc, wide temperature ultrahigh Bs MnZn ferrite material and preparation method | |
| CN111138179A (en) | Broadband high-impedance manganese-zinc ferrite material and preparation method thereof | |
| CN101183586A (en) | High magnetic conductivity, low THD soft magnetic ferrite magnetic material and method for preparing the same | |
| CN111116188A (en) | Manganese-zinc high-magnetic-permeability high-Curie-temperature high-frequency high-magnetic-flux material and preparation 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 | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |