CN109678486A - A kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material - Google Patents

A kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material Download PDF

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CN109678486A
CN109678486A CN201910141689.2A CN201910141689A CN109678486A CN 109678486 A CN109678486 A CN 109678486A CN 201910141689 A CN201910141689 A CN 201910141689A CN 109678486 A CN109678486 A CN 109678486A
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low
ferrite material
consumption
temperature
temperature coefficient
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杨美华
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NANTONG HUAXING MAGNETIC MATERIAL CO Ltd
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NANTONG HUAXING MAGNETIC MATERIAL CO Ltd
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Abstract

The present invention provides a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material, and the MnZn ferrite material is within the temperature range of -40 DEG C to 140 DEG C than temperature coefficient≤1.5 × 10‑6/ DEG C, which is made of principal component and auxiliary element, wherein the principal component: Fe2O3It is 8.6~9.6mol%, GeO for 52.7~53.5mol%, ZnO2It is surplus for 0.007~0.022mol%, MnO；The auxiliary element: CaCO3For 0.03~0.04wt%, K2O is 0.02~0.03wt%, Cu2O3For 0.4~0.5wt%.The present invention by adjusting main formula composition and impurity addition manner, prepared saturation flux density greater than 440mT, at 100kHz power consumption Pcv coefficient in 340kW/m3MnZn Ferrite Material below.

Description

A kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material
Technical field
The invention belongs to the advanced preparation and application fields of high performance soft magnetic ferrite material, are related to a kind of wide warm low temperature system Number low-consumption Mn-Zn ferrite material.
Background technique
With the continuous rise of the industries such as photovoltaic industry, electronic information technology, electric car and hybrid-electric car, answer Electronic equipment for these new industries will obtain unprecedented development, this will be to the Ferrite Material for being applied to these fields Play sizable impetus.MnZn Ferrite Material has the characteristics such as low-loss, high Bs, high magnetic permeability, high resistivity, extensively It is general to be applied in various electronic components, such as power transformer, choking-winding, pulse broadband transformer, present MnZn iron Ferrite has become computer, communication, TV, video recorder, office automation and the indispensable base of other electronic equipments Plinth element.As technology continues to develop, MnZn Ferrite Material is also evolving.To adapt to different field to MnZn ferrite The requirement of material, magnetic core production firm have to constantly develop the high-performance MnZn ferrite material with various new functions Material.The development in each field is made a general survey of, the characteristics such as ultra-low loss, high-temperature stability, superelevation Bs and high frequency are China MnZn power iron The inexorable trend of ferrite development.
Since the electronic product in these above-mentioned fields is substantially all work under relatively high environment temperature, and temperature range Width, so more stringent requirements are proposed to our low-power Ferrite Material, manganese zinc ferrites for power supplies be information technology, The widely applied material in the fields such as electron electric power needs strict control of material to guarantee device systems stabilization, reliable, efficient operation Power consumption this important indicator.The power consumption index of power ferrite is not only to be determined by its chemical component and crystal structure , internal stress, pore volume, impurity and the dislocation of material are reduced, magnetic hysteresis damage can be reduced by improving the measures such as saturation magnetization Ms Consumption；The resistivity and grain boundary resistivity, reduction crystallite dimension for improving intra-die can reduce eddy-current loss；Control the content of Fe2+ Residual loss can be reduced.This requires strict control technical process, keep the ferrite polycrystalline structure of production fine, uniform, gas Hole, impurity, the percent by volume of defect are as small as possible, reduce the internal stress of material, it is also necessary to study and control they density, Crystallite dimension, the porosity and their distributions between intra-die and crystal grain etc..Therefore, high performance power ferrite is prepared Material, formula be basis, sintering be it is crucial, mix effective additive and match with sintering process appropriate, then to iron oxygen The performance tool of body is marginal.
A kind of wide warm MnZn power ferrite material of CN102693802A disclosure of the invention and preparation method thereof, by principal component It is formed with auxiliary element, wherein principal component and content are calculated with oxide are as follows: Fe2O3 is 52.1~52.6mol%, ZnO 9 ~11.5mol%, MnO surplus；Auxiliary element based on principal component raw material gross weight is calculated with oxide are as follows: CaCO3, ZrO2, Nb2O5, SiO2 and Co2O3, and Co2O3 raw material has to be larger than 0.35wt%.The material temperature is in 25~140 DEG C of range loss ratios It is lower, but saturation flux density is relatively low.
CN201610767923.9 disclosure of the invention wide temperature low-power consumption MnZn ferrite material, by principal component and auxiliary element Composition, wherein the molar percentage of each component of the principal component are as follows: Fe2O3 be 52.7~53.5mol%, ZnO be 8.6~ 9.6mol%, MnO are surplus；By accounting for principal component total weight, auxiliary element each component content are as follows: CaCO3 is 0.03~ It is 0.4~0.5%, SnO2 is 0.05~0.15%, NaO2 0.0074 that 0.04%, Nb2O5, which are 0.02~0.03%, Co2O3, ~0.022% (being added in the form of sodium bicarbonate).In 1200 DEG C of isothermal holdings for carrying out controlling atmosphere of sintering temperature-fall period. The Ferrite Material is relatively low in 25~140 DEG C of temperature range losses, but temperature coefficient is undesirable.
A kind of high magnetic permeability, high impedance, low-temperature coefficient and the excellent MnZn of frequency characteristic are had both in conclusion researching and developing Ferrite Material certainly will become the hot spot that the following research and development institution and company competitively chase, with important engineering background and Market value.
Summary of the invention
Object of the present invention is to propose a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material.
The technical scheme is that a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material, the manganese-zinc ferrite Body material is within the temperature range of -40 DEG C to 140 DEG C than temperature coefficient≤1.5 × 10-6/ DEG C, the MnZn ferrite material is by leading Ingredient and auxiliary element composition, wherein the principal component: Fe2O3It is 8.6~9.6mol% for 52.7~53.5mol%, ZnO, GeO2It is surplus for 0.007~0.022mol%, MnO；
The auxiliary element: CaCO3For 0.03~0.04wt%, K2O is 0.02~0.03wt%, Cu2O3For 0.4~ 0.5wt%.
Preferably, the principal component: Fe2O3It is 8.6~9.6mol%, GeO for 52.7~53.5mol%, ZnO2For 0.01~0.02mol%, MnO are surplus；
The auxiliary element: CaCO3For 0.03~0.04wt%, K2O is 0.02~0.03wt%, Cu2O3For 0.4~ 0.5wt%, SiO2For 0.05~0.15wt%, TiO2For 0.08~0.12wt%, Sm2O3For 0.005~0.04wt%.
Preferably, the principal component: Fe2O3For 52.7mol%, ZnO 8.6mol%, GeO2For 0.007mol%, MnO is 38.693mol%；
The auxiliary element: CaCO3For 0.03wt%, K2O is 0.02wt%, Cu2O3For 0.4wt%, SiO2For 0.15wt%, TiO2 0.08wt%, Sm2O3For 0.005wt%.
Preferably, the principal component: Fe2O3For 52.7mol%, ZnO 8.7mol%, GeO2For 0.012mol%, MnO is 38.588mol%；
The auxiliary element: CaCO3For 0.03wt%, K2O is 0.02wt%, Cu2O3For 0.5wt%, SiO2For 0.05wt%, TiO2For 0.08wt%, Sm2O3For 0.04wt%.
Preferably, the principal component: Fe2O3For 53.5mol%, ZnO 9.6mol%, GeO2For 0.022mol%, MnO is 36.878mol%；
The auxiliary element: CaCO3For 0.04wt%, K2O is 0.03wt%, Cu2O3For 0.5wt%, SiO2For 0.1wt%, TiO2For 0.08wt%, Sm2O3For 0.02wt%.
Preferably, K is with potassium carbonate (K soluble easily in water2CO3) form addition；K2CO3Additive amount is total by principal component is accounted for Weight is calculated as 0.01~0.03%.
Preferably, the wide temperature low-power consumption MnZn ferrite material is in -40~140 DEG C of wide temperature ranges, 100kHz, Power consumption Pcv≤340kW/m under the conditions of 200mT3；Saturation flux density Bs >=440mT under the conditions of 1194A/m, 50Hz； It is 3650 ± 20% that initial permeability under the conditions of -40 DEG C -150 DEG C, which is μ i,.
Due to being influenced by crystal anisotropy constant K the last 1 temperature dependent properties, MnZn ferrite material is only capable of in K1 The temperature spot that compensation is zero is implemented around low magnetic hystersis loss and high magnetic permeability.Using the low zinc formula of more iron, it is greatly improved saturation Magnetic flux density Bs, but PCV-T curve tail upwarps, and high temperature power consumption is odd big, and inventor, which is based on further investigation, influences magnetocrystalline The mechanism and various other influence factors of each opposite sex constant K1 temperature dependent properties, by being formed to materials chemistry, micro addition The further investigation of agent doping, sintering process and microstructure, the preferably various micro constitutents of the present invention, using mutual between additive It restrains and balances.The temperature that the compensation of crystal anisotropy constant K 1 is zero is divided by innovative ground by usual single temperature spot High and low two temperature spots, thus greatly reduce material magnetocrystalline anisotropy to the dependence of temperature, make MnZn ferrite material There is flat power consumption~temperature characterisitic in wider temperature range.
Beneficial effects of the present invention:
1. the warm low-temperature coefficient low-consumption Mn-Zn ferrite material of width of the invention used the low zinc formula of iron, keep magnetocrystalline each Anisotropy constant and saturation magnetostriction constant As go to zero, and saturation magnetization is big, while reducing the internal stress of material, obtain The grain structure of dense uniform.
2. inventor is analyzed by the temperature characterisitic (PL~T characteristic) to loss, meeting Curie temperature requirement In the case where, it reduces ZnO content x (ZnO)=8.6~9.6%, increases GeO in principal component2Content, with Fe2O3/GeO2Ratio Increase, domain wall resonance frequency is shifted to high-end, and residual loss is caused to reduce；The present invention adds by adjusting the composition and impurity of main formula Add mode has prepared saturation flux density and has been greater than 440mT, -40 DEG C of -140 DEG C of range internal ratio temperature coefficient≤1.5 × 10-6/ DEG C and at 100kHz power consumption Pcv coefficient in 340kW/m3MnZn Ferrite Material below.
3. the present invention obtains crystal using the regulating and controlling effect of micro additive K, Cu material microstructure formed to sintering The sintered body of fine structure, crystallite dimension more evenly reduces the magnetic hystersis loss and eddy-current loss of material, so that material is total Loss reduces, while improving saturation flux density.The part that the present invention is able to solve MnZn ferrite material application aspect is existing There is technical problem, the addition of certain auxiliary element also has meaning to final products performance.
4. the warm low-temperature coefficient low-consumption Mn-Zn ferrite material of width of the invention, by germanium, samarium, potassium, copper admixture, and The control of additive amount, to substantially increase Bs under conditions of realizing low temperature high temperature, and high and low frequency loss all obtains Very big improvement has preferable frequency characteristic.Ge of the present invention4+、Cu3+、Ti4+、K1+Synergy, make complex ferrite K1-T obtain compensation adjustment, to reach wide warm high saturation magnetic flux density Bs, DC superposition characteristic is good, and high temperature is low in energy consumption. Present invention reduces power consumption of manganese-zinc ferrite under the conditions of 50Hz, and initial permeability with higher.
Specific embodiment
The present invention is further explained in the light of specific embodiments:
Embodiment 1:
First, in accordance with prescribed formula ingredient: Fe2O3For 53.5mol%, ZnO 9.6mol%, GeO2For 0.022mol%, MnO is 36.878mol%, mixing, and in sand mill, the deionized water of the weight such as addition, it is 90 minutes that the time, which is sanded, a sand Cu is mixed when mill2O3For 0.5wt%；
Above-mentioned sand milling material is dried, 950 DEG C pre-burning 120 minutes, it is cooling, carry out secondary sand milling, when secondary sand milling mixes CaCO3For 0.03wt%, K2O is 0.02wt%, and the deionized water for expecting weight equivalent is added, and is sanded 4 hours, makes being averaged for Preburning material Granularity is less than 0.8 μm；
Gained feed powder is mixed by weight 12wt% polyvinyl alcohol (PVA) and zinc stearate 1.0wt% is added, and is used 45 mesh sub-sieves are granulated, and are pressed into 25 sample ring of φ, are subsequently placed in atmosphere sintering furnace, are sintered under nitrogen protection, 600~ 800 DEG C of temperature sections, partial pressure of oxygen 0.005% heat up 45 minutes；In 800~1000 DEG C of temperature sections, partial pressure of oxygen 0.5%, heating 1 hour；It is balanced atmosphere sintering in temperature descending section, whole process maintains equilibrium oxygen partial pres-sure 0.2%, furnace cooling to room temperature.
Embodiment 2
First, in accordance with prescribed formula ingredient: Fe2O3For 53.5mol%, ZnO 9.6mol%, GeO2For 0.022mol%, MnO is 36.878mol%, mixing, and in sand mill, the deionized water of the weight such as addition, it is 90 minutes that the time, which is sanded, a sand Cu is mixed when mill2O3For 0.5wt%, Sm2O3For 0.02mol%；
Above-mentioned sand milling material is dried, 950 DEG C pre-burning 120 minutes, it is cooling, carry out secondary sand milling, when secondary sand milling mixes CaCO3For 0.04wt%, K2O is 0.03wt%, SiO2For 0.1wt%, TiO2For 0.08wt%, be added expect weight equivalent go from Sub- water is sanded 4 hours, makes the average particle size of Preburning material less than 0.8 μm；
Gained feed powder is mixed by weight 12wt% polyvinyl alcohol (PVA) and zinc stearate 1.0wt% is added, and is used 45 mesh sub-sieves are granulated, and are pressed into 25 sample ring of φ, are subsequently placed in atmosphere sintering furnace, are sintered under nitrogen protection, 600~ 800 DEG C of temperature sections, partial pressure of oxygen 0.005% heat up 45 minutes；In 800~1000 DEG C of temperature sections, partial pressure of oxygen 0.5%, heating 1 hour；It is balanced atmosphere sintering in temperature descending section, whole process maintains equilibrium oxygen partial pres-sure 0.2%, furnace cooling to room temperature.
Embodiment 3
First, in accordance with prescribed formula ingredient: Fe2O3For 52.7mol%, ZnO 8.6mol%, GeO2For 0.007mol%, MnO is 38.693mol%, mixing, and in sand mill, the deionized water of the weight such as addition, it is 90 minutes that the time, which is sanded, a sand Cu is mixed when mill2O3For 0.4wt%, Sm2O3For 0.005wt%；
Above-mentioned sand milling material is dried, 950 DEG C pre-burning 120 minutes, it is cooling, carry out secondary sand milling, when secondary sand milling mixes CaCO3For 0.03wt%, K2O is 0.02wt%, TiO2For 0.08wt%, the deionized water for expecting weight equivalent is added, is sanded 4 hours, Make the average particle size of Preburning material less than 0.8 μm；
Gained feed powder mixes by weight 8wt% polyvinyl alcohol (PVA) and zinc stearate 1.0wt% is added, uses 45 Mesh sub-sieve is granulated, and is pressed into 25 sample ring of φ, is subsequently placed in atmosphere sintering furnace, is sintered under nitrogen protection, 600~ 800 DEG C of temperature sections, partial pressure of oxygen 0.005% heat up 45 minutes；In 800~1000 DEG C of temperature sections, partial pressure of oxygen 0.5%, heating 1 hour；It is balanced atmosphere sintering in temperature descending section, whole process maintains equilibrium oxygen partial pres-sure 0.2%, furnace cooling to room temperature.
Comparative example 1: weigh principal component raw material by following principal component contents: Fe2O3 content is 53.1mol%, ZnO content is 9.2mol%, MnO content are 37.7mol%, be sanded mixing and spraying it is dry after pre-burning, calcined temperature is 900 DEG C, and the time is 120 minutes.Weighed auxiliary element raw material in proportion is added in Preburning material.By the auxiliary element content of principal component total weight For CaCO3: 0.04%, Nb2O5:0.03%, Co2O3: 0.4%, SiO2: 0.1%, sand milling crushing is carried out, the time is 120 minutes, Sand average grit diameter is 0.9 μm.Then material is sanded to this and carries out mist projection granulating, with molding machine compacting H25/15/10 annular examination Sample.
The magnetism testing of the sample ring prepared in embodiment 1-3 and comparative example 1 is enterprising in Hp4284A impedance analyzer The density of row, sample uses Measure by buoyancy method.Survey sample ring performance, obtained ferrite torroidal core sample characteristics of for example comparison result It is shown in Table 1.
Table 1
As it can be seen from table 1 the present invention has prepared saturation magnetic by adjusting the composition and impurity addition manner of main formula Flux density is greater than 440mT, -40 DEG C of -140 DEG C of range internal ratio temperature coefficient≤1.5 × 10-6/℃.The present invention by germanium, samarium, The control of potassium, the admixture of copper and additive amount, to substantially increase Bs under conditions of realizing low temperature high temperature, and high frequency and Frequency Power Loss is all greatly improved, and has preferable frequency characteristic.
See Table 2 for details for the relationship of actual measurement sample ring power consumption, embodiment 1-3 and comparative sample power consumption Pcv and temperature.
Table 2
From table 2 it can be seen that crystal anisotropy constant K 1 is compensated the temperature for being zero by usual single temperature by the present invention Point is divided into high and low two temperature spots, thus greatly reduces material magnetocrystalline anisotropy to the dependence of temperature, makes manganese-zinc ferrite Body material has flat power consumption~temperature characterisitic in wider temperature range.
The present invention is by adjusting the composition and impurity addition manner of main formula, and the material developed is (- 40 in wide temperature range ~140 DEG C) with the temperature coefficient of very little, extremely low loss.MnZn Ferrite Material saturation flux density of the invention is greater than 440mT, -40 DEG C of -140 DEG C of range internal ratio temperature coefficient≤1.5 × 10-6/ DEG C and power consumption Pcv coefficient exists at 100kHz 340kW/m3Below.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (7)

1. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material, it is characterized in that the MnZn ferrite material is at -40 DEG C Than temperature coefficient≤1.5 × 10 within the temperature range of to 140 DEG C-6/ DEG C, the MnZn ferrite material is by principal component and auxiliary element Composition, wherein the principal component: Fe2O3It is 8.6~9.6mol%, GeO for 52.7~53.5mol%, ZnO2For 0.007~ 0.022mol%, MnO are surplus；
The auxiliary element: CaCO3For 0.03~0.04wt%, K2O is 0.02~0.03wt%, Cu2O3For 0.4~0.5wt%.
2. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material according to claim 1, characterized in that described Principal component: Fe2O3It is 8.6~9.6mol%, GeO for 52.7~53.5mol%, ZnO2It is remaining for 0.01~0.02mol%, MnO Amount；
The auxiliary element: CaCO3For 0.03~0.04wt%, K2O is 0.02~0.03wt%, Cu2O3For 0.4~0.5wt%, SiO2For 0.05~0.15wt%, TiO2For 0.08~0.12wt%, Sm2O3For 0.005~0.04wt%.
3. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material according to claim 2, characterized in that described Principal component: Fe2O3For 52.7mol%, ZnO 8.6mol%, GeO2For 0.007mol%, MnO 38.693mol%；
The auxiliary element: CaCO3For 0.03wt%, K2O is 0.02wt%, Cu2O3For 0.4wt%, SiO2For 0.15wt%, TiO2 is 0.08wt%, Sm2O3For 0.005wt%.
4. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material according to claim 2, characterized in that described Principal component: Fe2O3For 52.7mol%, ZnO 8.7mol%, GeO2For 0.012mol%, MnO 38.588mol%；
The auxiliary element: CaCO3For 0.03wt%, K2O is 0.02wt%, Cu2O3For 0.5wt%, SiO2For 0.05wt%, TiO2For 0.08wt%, Sm2O3For 0.04wt%.
5. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material according to claim 2, characterized in that described Principal component: Fe2O3For 53.5mol%, ZnO 9.6mol%, GeO2For 0.022mol%, MnO 36.878mol%；
The auxiliary element: CaCO3For 0.04wt%, K2O is 0.03wt%, Cu2O3For 0.5wt%, SiO2For 0.1wt%, TiO2For 0.08wt%, Sm2O3For 0.02wt%.
6. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material according to claim 1 or 2, it is characterized in that K With potassium carbonate (K soluble easily in water2CO3) form addition；K2CO3Additive amount by account for principal component total weight be 0.01~ 0.03%.
7. a kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material according to claim 2, it is characterized in that described Power consumption Pcv under the conditions of wide temperature low-power consumption MnZn ferrite material is in -40~140 DEG C of wide temperature ranges, 100kHz, 200mT≤ 340kW/m3；Saturation flux density Bs >=440mT under the conditions of 1194A/m, 50Hz；Rising under the conditions of -40 DEG C -150 DEG C Beginning magnetic conductivity is that μ i is 3650 ± 20%.
CN201910141689.2A 2019-02-26 2019-02-26 A kind of wide warm low-temperature coefficient low-consumption Mn-Zn ferrite material Pending CN109678486A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111470857A (en) * 2020-03-16 2020-07-31 横店集团东磁股份有限公司 High-frequency manganese-zinc ferrite material and preparation method thereof
CN111908909A (en) * 2020-08-13 2020-11-10 江西耀润磁电科技有限公司 Ultrahigh frequency inductor ferrite core and preparation method thereof
US11958779B2 (en) 2020-06-30 2024-04-16 Tdg Holding Co., Ltd MnZn ferrite material with wide temperature range and low consumption, and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1627454A (en) * 2003-12-12 2005-06-15 浙江天通电子股份有限公司 Soft-magnetic manganese-zinc ferrite in low wastage
CN104876560A (en) * 2015-04-14 2015-09-02 安徽祈艾特电子科技有限公司 Thermal-shock-resisting soft magnetic ferrite material and preparation method thereof
CN104891977A (en) * 2015-04-24 2015-09-09 马鞍山科信咨询有限公司 High frequency fine grain soft magnetic ferrite magnet material and preparation method thereof
CN106396661A (en) * 2016-08-30 2017-02-15 南京新康达磁业股份有限公司 Manganese zinc ferrite material with wide temperature and low power as well as preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1627454A (en) * 2003-12-12 2005-06-15 浙江天通电子股份有限公司 Soft-magnetic manganese-zinc ferrite in low wastage
CN104876560A (en) * 2015-04-14 2015-09-02 安徽祈艾特电子科技有限公司 Thermal-shock-resisting soft magnetic ferrite material and preparation method thereof
CN104891977A (en) * 2015-04-24 2015-09-09 马鞍山科信咨询有限公司 High frequency fine grain soft magnetic ferrite magnet material and preparation method thereof
CN106396661A (en) * 2016-08-30 2017-02-15 南京新康达磁业股份有限公司 Manganese zinc ferrite material with wide temperature and low power as well as preparation method thereof

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
《中国电力百科全书》编辑委员会编: "《中国电力百科全书 电工技术基础卷》", 31 October 1995, 中国电力出版社 *
关小蓉等: "锰锌、镍锌铁氧体的研究现状及最新进展", 《材料导报》 *
夏德贵等 编著: "《软磁铁氧体制造原理与技术》", 31 December 2010, 陕西科学技术出版社 *
斯拉文斯基 著: "《元素的物理化学性质 上册》", 30 November 1957, 冶金工业出版社 *
章顺利等: "Mn-Zn功率铁氧体微量添加物的研究进展", 《磁性材料及器件》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111470857A (en) * 2020-03-16 2020-07-31 横店集团东磁股份有限公司 High-frequency manganese-zinc ferrite material and preparation method thereof
US11958779B2 (en) 2020-06-30 2024-04-16 Tdg Holding Co., Ltd MnZn ferrite material with wide temperature range and low consumption, and preparation method thereof
CN111908909A (en) * 2020-08-13 2020-11-10 江西耀润磁电科技有限公司 Ultrahigh frequency inductor ferrite core and preparation method thereof

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Application publication date: 20190426