CN106298141A - A kind of Fe-based nanocrystalline magnetically soft alloy material and preparation method thereof - Google Patents
A kind of Fe-based nanocrystalline magnetically soft alloy material and preparation method thereof Download PDFInfo
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- CN106298141A CN106298141A CN201610888758.2A CN201610888758A CN106298141A CN 106298141 A CN106298141 A CN 106298141A CN 201610888758 A CN201610888758 A CN 201610888758A CN 106298141 A CN106298141 A CN 106298141A
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- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
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- H01F1/15316—Amorphous metallic alloys, e.g. glassy metals based on Co
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Abstract
The present invention relates to a kind of Fe-based nanocrystalline magnetically soft alloy material, it is characterised in that alloy composition meets molecular formula FeaCobNicZrdBeCuf, in formula, subscript a, b, c, d, e, f represent the atomic percent of corresponding alloying element respectively, and meet following condition: 44≤a≤88,0≤b≤44,0≤c≤44,5≤d≤10,1≤e≤5,0.5≤f≤1.5, a+b+c+d+e+f=100.Described alloy material is by body-centered cubic α (Fe, Co, Ni) the nanocrystal phase composition of noncrystal substrate and average grain size about 10nm.Compared with prior art, it is an advantage of the current invention that this nanometer crystal alloy has high saturated magnetic induction, high-curie temperature and low loss concurrently, and reduce the cost of raw material, have a good application prospect the most in high temperature environments.
Description
Technical field
The present invention relates to a kind of Fe-based nanocrystalline magnetically soft alloy material, the invention still further relates to this nanocrystalline magnetically soft alloy material
Preparation method.
Background technology
Soft magnetic materials is a human development class magnetic functional material the earliest, possesses higher pcrmeability, saturated magnetization strong
The characteristics such as degree and resistivity.Nano crystal soft magnetic material is a novel soft magnetic materials of class, and it is by noncrystal substrate and is distributed in matrix
On have nano-grade size crystal grain composition, can be obtained by non-crystaline amorphous metal is partially-crystallized.Nano crystal soft magnetic material has low rectifying
The multiple advantages such as stupid power, high magnetic permeability and low-loss, can meet each class of electronic devices and develop to aspect energy-efficient, integrated
Demand, and prepare easily, with low cost, be referred to as " third generation soft magnetism " material.
Research to nano-crystal soft magnetic alloy starts from 1988, and through the research of more than 30 years, current nano-crystal soft-magnetic closed
Gold mainly has three individual system: FeSiBMCu (M=Nb, Mo, W, Ta etc.) to be that FINEMET alloy, FeMB (M=Zr, Hf, Nb etc.) are
NANOPERM alloy and (Fe, Co) MBCu (M=Zr, Hf, Nb etc.) are HITPERM alloy.
FINEMET alloy have low-loss, high magnetic permeability and saturation magnetostriction constant level off to zero feature, and perm
Alloy, Co base noncrystal alloy material are equally matched.Extensively apply though FINEMET alloy has obtained, but its saturation magnetization phase
To relatively low, limit its range of application to a certain extent.NANOPERM alloy saturation magnetization is higher, and combination property is too late
FINEMET alloy.FINEMET and NANOPERM alloy is owing to being limited by its amorphous phase and nanometer crystalline phase Curie temperature, only
Less than 200 DEG C can be used in, will lose magnetism under hot environment.HITPERM alloy, has higher saturation induction density
And Curie temperature, its high frequency characteristics is also superior to NANOPERM alloy, but coercivity is up to 70A/m, is lost the highest, thus limits
It is in the application of high-temperature field.
Chinese patent CN102254665A discloses a kind of ferrum cobalt-based nanometer crystal alloy and preparation method thereof.The chemistry of alloy
Composition be FeCoMBCu, M be Nb, one or more in Zr, Hf, Mo, W, Ta, concrete atomic percentage conc is Fe=40
42.8%, Co=40 42.8%, M=5 8%, B=5 12%, Cu=0.1 1.5%.This alloy has high saturated magnetic strength concurrently
Answer intensity and high Curie temperature.But, in this alloy, the element percentage content of Co is the highest, is 40%～42.8%,
High Co content makes this cost of alloy costly.
Magnetic material is had higher requirement by Aeronautics and Astronautics and developing rapidly of science and techniques of defence.The most electronic space flight
The rotor material of the integrated power device of aircraft requires high temperature soft magnet performance and the heat stability with excellence, and operating temperature exists
Between 500～600 DEG C.Electromotor within nuclear power station reactor and the magnetic material in generating set require can be in hot conditions
Lower long-time military service.Therefore research has high saturation and magnetic intensity, low-loss and high-curie temperature concurrently, can make in high temperature environments
With, the nano crystal soft magnetic material that the cost of raw material is cheap simultaneously is most important.
Summary of the invention
Technical problem: the present invention is directed to the above-mentioned state of the art and provide a kind of Fe-based nanocrystalline magnetically soft alloy material, this material
Material has the excellent soft magnet performance such as high saturated magnetic induction, high-curie temperature and low high-frequency loss, receives with existing simultaneously
Rice peritectic alloy is compared, and reduces the cost of raw material.
Technical scheme: the alloy composition of a kind of Fe-based nanocrystalline magnetically soft alloy material of the present invention meets molecular formula:
FeaCobNicZrdBeCuf, in formula, subscript a, b, c, d, e, f represent the atomic percent of corresponding alloying element respectively, and meet
Following condition: 44≤a≤88,0≤b≤44,0≤c≤44,5≤d≤10,1≤e≤5,0.5≤f≤1.5, and a+b+c+d
+ e+f=100.
Wherein:
The atomic percent of Fe is preferably 52.8≤a≤79.2.
The atomic percent of Co is preferably 8.8≤b≤35.2.
The atomic percent of Ni is preferably 8.8≤c≤26.4.
Described is nanocrystalline, and its structure includes noncrystal substrate and nanometer crystalline phase, and wherein nanometer crystalline phase is body-centered cubic structure
α (Fe, Co, Ni), its average grain size about 10nm.
The saturation induction density of this alloy material is 1.54 1.79T, and coercivity is 7 28A/m.
Wherein the loss under the conditions of 1.0T, 50Hz, 10kHz of this alloy material is respectively 0.68 1.78W/kg and 465
875W/kg。
Wherein the loss under the conditions of 0.2T, 20kHz, 100kHz of this alloy is respectively 70 152W/kg and 433 1204W/
kg。
The preparation method of the Fe-based nanocrystalline magnetically soft alloy material of the present invention comprises the following steps:
Step 1: by Fe, Co, Ni, Zr, B and the Cu in alloy compositions according to alloy ingredient FeaCobNicZrdBeCuf
Carrying out dispensing, in formula, subscript a, b, c, d, e, f represent the atomic percent of corresponding alloying element respectively, and meet following bar
Part: 44≤a≤88,0≤b≤44,0≤c≤44,5≤d≤10,1≤e≤5,0.5≤f≤1.5, a+b+c+d+e+f=100,
The most each material purity is all higher than 99%；
Step 2: raw material step 1 prepared loads in smelting furnace, carries out melting under inert atmosphere protection, after cooling
To the uniform mother alloy ingot of composition；
Step 3: above-mentioned mother alloy ingot is broken for fritter sample, leaves nozzle bottom the alloy pig loading after crushing
Quartz ampoule in, prepare continuous print non-crystaline amorphous metal by single roller chilling method；Non-crystaline amorphous metal is ribbon, and width is 1 2mm,
Thickness is 20 25 μm；
Step 4: described non-crystaline amorphous metal is loaded in heat-treatment furnace, is evacuated to less than 1 × 10‐2Pa, is carried out at crystallization heat
Reason, is then quickly quenching into room temperature, obtains nanocrystalline magnetically soft alloy material；Annealing temperature is 530 570 DEG C, temperature retention time of annealing
It it is 45 75 minutes.
Beneficial effect: compared with prior art, it is an advantage of the current invention that:
(1), in the Fe-based nanocrystalline magnetically soft alloy that the present invention provides, add part with a small amount of Co and Ni simultaneously and replace Fe, subtract
Lack the content of precious metal element in HITPERM alloy, greatly reduce the cost of raw material；
(2) have the Fe-based nanocrystalline magnetically soft alloy of alloy of the present invention composition not only possess high saturation induction density,
High Curie temperature, also has relatively low coercivity and high-frequency loss, and wherein saturation induction density is up to 1.79T, Ju Liwen
Degree is more than 900 DEG C, and coercivity is less than 28A/m, preferably 7 20A/m.For HITPERM alloy, there is the present invention
The Fe-based nanocrystalline magnetically soft alloy of alloy composition reduces more than 40% in the iron loss of 1.0T, 10kHz；
(3) method preparing this nanocrystalline magnetically soft alloy material that the present invention provides is simple to operation, the alloy material prepared
Material structure includes noncrystal substrate and nanometer crystalline phase, and wherein nanometer crystalline phase is the α (Fe, Co, Ni) of body-centered cubic structure, nanometer
Jingjing particle size meansigma methods is less than 20nm, preferably 10nm.
Accompanying drawing explanation
Fig. 1 is (Fe in the embodiment of the present invention 10.7Co0.2Ni0.1)88Zr7B4Cu1Non-crystaline amorphous metal and the X-ray of nanometer crystal alloy
Diffracting spectrum；
Fig. 2 is (Fe in the embodiment of the present invention 10.7Co0.2Ni0.1)88Zr7B4Cu1The DSC curve of non-crystaline amorphous metal；
Fig. 3 is (Fe in the embodiment of the present invention 10.7Co0.2Ni0.1)88Zr7B4Cu1The hysteresis curve of nanometer crystal alloy；
Fig. 4 is (Fe in the embodiment of the present invention 10.7Co0.2Ni0.1)88Zr7B4Cu1Nanometer crystal alloy is lost with magnetic induction
Change curve；
Fig. 5 is (Fe in the embodiment of the present invention 20.8Co0.1Ni0.1)88Zr7B4Cu1Nanometer crystal alloy is lost with magnetic induction
Change curve.
Detailed description of the invention
The molecular formula of the Fe-based nanocrystalline magnetically soft alloy material that the present invention provides is: FeaCobNicZrdBeCuf, subscript in formula
A, b, c, d, e, f represent the atomic percentage conc of each corresponding element, 44≤a≤88,0≤b≤44,0≤c≤44,5≤d respectively
≤ 10,1≤e≤5,0.5≤f≤1.5, and a+b+c+d+e+f=100.
As preferably, the atomic percent of described Fe is preferably 52.8≤a≤79.2.
As preferably, the atomic percent of described Co is preferably 8.8≤b≤35.2.
As preferably, the atomic percent of described Ni is preferably 8.8≤c≤26.4.
Present invention also offers a kind of method preparing above-mentioned Fe-based nanocrystalline magnetically soft alloy material, comprise the steps:
Step 1: by Fe, Co, Ni, Zr, B and the Cu in alloy compositions according to alloy ingredient FeaCobNicZrdBeCuf
Carrying out dispensing, subscript a, b, c, d, e, f represent the atomic percent of corresponding alloying element respectively, meet following condition: 44≤a≤
88,0≤b≤44,0≤c≤44,5≤d≤10,1≤e≤5,0.5≤f≤1.5, and a+b+c+d+e+f=100；
Step 2: raw material step 1 prepared loads in smelting furnace, carries out melting under inert atmosphere protection, after cooling
To the uniform mother alloy ingot of composition；
Step 3: mother alloy ingot is broken for fritter sample, leaves the stone of nozzle bottom the alloy pig loading after crushing
Ying Guanzhong, prepares continuous print non-crystaline amorphous metal by single roller chilling method；
Step 4: described non-crystaline amorphous metal is loaded in heat-treatment furnace, is evacuated to less than 1 × 10‐2Pa, is carried out at crystallization heat
Reason, is then quickly quenching into room temperature, obtains nanocrystalline magnetically soft alloy material.
As preferably, in described step 1, element of Fe, the purity of Co, Ni, Zr, B and Cu are all not less than 99wt.%.
As preferably, in described step 2, smelting temperature is 1,300 1800 DEG C.
As preferably, in described step 2, smelting time is 20 40 minutes.
As preferably, in described step 3, described non-crystaline amorphous metal is ribbon, and strip width is 1 2mm, thickness
It is 25 30 μm.
As preferably, in described step 4, crystallization and thermal treatment process is: carried out in vacuum atmosphere by non-crystaline amorphous metal
Temperature crystallization and thermal treatment, is then quickly quenching into room temperature.
As preferably, in described step 4, annealing temperature is 510 570 DEG C.
As preferably, in described step 4, annealing time is 30 90 minutes, more preferably 45 75 minutes.
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, it should be pointed out that the following stated is real
Execute example and be intended to be easy to the understanding of the present invention, and it is not played any restriction effect.
Embodiment 1:
In the present embodiment, the molecular formula of the iron-base nanometer crystal alloy of high saturated magnetic induction high-curie temperature is expressed as
(Fe0.7Co0.2Ni0.1)88Zr7B4Cu1, preparation process is as follows:
(1) by purity more than 99% raw material Fe, Co, Ni, Zr, B, Cu press the present embodiment chemical molecular formula prepare 15g；
(2) use arc-melting furnace by step (1) institute preparation raw material melt back five times under argon shield, make in alloy
Each composition mix homogeneously；
(3) mother alloy ingot is broken for fritter sample, bottom the alloy pig loading after crushing, leaves the quartz of nozzle
Guan Zhong, uses single roller chilling to get rid of band technology, gets rid of band with the speed of 40m/s in an ar atmosphere, prepare AMORPHOUS ALLOY RIBBONS；
(4) described non-crystaline amorphous metal is loaded in heat-treatment furnace, be evacuated to less than 5 × 10‐3Pa, is incubated 1 hour at 540 DEG C
Rear quartz ampoule is put into quenching-in water is cooled to room temperature rapidly, obtains nanocrystalline magnetically soft alloy material.
Use the state alloy strip and through step quenched that D8Advance type polycrystal X ray diffractometer testing procedure (3) prepares
(4) the XRD figure spectrum of the alloy strip after heat treatment, result is as shown in Figure 1, it is seen that, state of quenching band is non crystalline structure, after heat treatment
Alloy bar with obvious crystallization peak, the internal crystallization of alloy is described.Through analyze this Crystallization Phases be body-centred cubic α (Fe, Co,
Ni) phase, estimates its crystallite dimension about 11nm by Scherrer formula.
Use the DSC of state alloy strip of quenching prepared for NETZSCH DSC 404F3 differential scanning calorimeter measuring process (3)
Curve, heating rate arranges 40 DEG C/min, and result is as in figure 2 it is shown, record the initial crystallization temperature T of AMORPHOUS ALLOY RIBBONSx1For
491 DEG C, secondary crystallization temperature Tx2Being 691 DEG C, the transition temperature of bcc fcc phase in opposite directions, i.e. Curie temperature reaches 858 DEG C.
Vibrating specimen magnetometer (VSM, Lakeshore 7407) is used to measure nanocrystalline after step (4) heat treatment
The hysteresis curve of alloy strip uses DC magnetizing characteristic analyser (B H Curve Tracer, EXPH 100) to measure through step
Suddenly the coercivity of the nanometer crystal alloy band after (4) heat treatment.Test result is as it is shown on figure 3, record the saturated magnetization of this alloy
Intensity is 1.66T, and coercivity is 17A/m.
Fig. 4 show alloy after step (4) heat treatment and is lost with magnetic induction change curve.Loss uses exchange
Magnetization characteristic analyser (B H Curve Tracer, AC BH 100k) is measured, for beta alloy at different magnetic induction
And the loss under different frequency, it can be seen that alloy loss under magnetic strength 1.0T, frequency 50Hz is 0.93W/kg.Utilize this friendship
Stream magnetization characteristic analyser measurement alloy is at magnetic strength 1.0T, and the loss under the conditions of frequency 10kHz is 532W/kg, at magnetic strength 0.2T,
Loss under the conditions of frequency 20kHz, 100kHz is respectively 88W/kg, 600W/kg.
Embodiment 2:
In the present embodiment, the molecular formula of the iron-base nanometer crystal alloy of high saturated magnetic induction high-curie temperature is expressed as
(Fe0.8Co0.1Ni0.1)88Zr7B4Cu1, preparation process is as follows:
(1) by purity more than 99% raw material Fe, Co, Ni, Zr, B, Cu press the present embodiment chemical molecular formula prepare 15g；
(2) use arc-melting furnace by step (1) institute preparation raw material melt back five times under argon shield, make in alloy
Each composition mix homogeneously；
(3) mother alloy ingot is broken for fritter sample, bottom the alloy pig loading after crushing, leaves the quartz of nozzle
Guan Zhong, uses single roller chilling to get rid of band technology, gets rid of band with the speed of 40m/s in an ar atmosphere, prepare AMORPHOUS ALLOY RIBBONS；
(4) described non-crystaline amorphous metal is loaded in heat-treatment furnace, be evacuated to less than 5 × 10‐3Pa, is incubated 1 hour at 500 DEG C
Rear quartz ampoule is put into quenching-in water is cooled to room temperature rapidly, obtains nanocrystalline magnetically soft alloy material.
Vibrating specimen magnetometer (VSM, Lakeshore 7407) is used to measure nanocrystalline after step (4) heat treatment
The hysteresis curve of alloy strip uses DC magnetizing characteristic analyser (B H Curve Tracer, EXPH 100) to measure through step
Suddenly the coercivity of the nanometer crystal alloy band after (4) heat treatment, the saturation magnetization recording this alloy is 1.60T, coercivity
For 9A/m.
Fig. 5 show alloy after step (4) heat treatment and is lost with magnetic induction change curve.Loss uses exchange
Magnetization characteristic analyser (B H Curve Tracer, AC BH 100k) is measured, for beta alloy at different magnetic induction
And the loss under different frequency, it can be seen that alloy loss under magnetic strength 1.0T, frequency 50Hz is 0.82W/kg.Utilize this friendship
Stream magnetization characteristic analyser measurement alloy is at magnetic strength 1.0T, and the loss under the conditions of frequency 10kHz is 519W/kg, at magnetic strength 0.2T,
Loss under the conditions of frequency 20kHz, 100kHz is respectively 70W/kg, 433W/kg.
Embodiment 3:
In the present embodiment, the molecular formula of the iron-base nanometer crystal alloy of high saturated magnetic induction high-curie temperature is expressed as
(Fe0.6Co0.3Ni0.1)88Zr7B4Cu1, preparation process is as follows:
(1) by purity more than 99% raw material Fe, Co, Ni, Zr, B, Cu press the present embodiment chemical molecular formula prepare 15g；
(2) use arc-melting furnace by step (1) institute preparation raw material melt back five times under argon shield, make in alloy
Each composition mix homogeneously；
(3) mother alloy ingot is broken for fritter sample, bottom the alloy pig loading after crushing, leaves the quartz of nozzle
Guan Zhong, uses single roller chilling to get rid of band technology, gets rid of band with the speed of 40m/s in an ar atmosphere, prepare AMORPHOUS ALLOY RIBBONS；
(4) described non-crystaline amorphous metal is loaded in heat-treatment furnace, be evacuated to less than 5 × 10‐3Pa, is incubated 1 hour at 520 DEG C
Rear quartz ampoule is put into quenching-in water is cooled to room temperature rapidly, obtains nanocrystalline magnetically soft alloy material.
Vibrating specimen magnetometer (VSM, Lakeshore 7407) is used to measure nanocrystalline after step (4) heat treatment
The hysteresis curve of alloy strip uses DC magnetizing characteristic analyser (B H Curve Tracer, EXPH 100) to measure through step
Suddenly the coercivity of the nanometer crystal alloy band after (4) heat treatment.The saturation magnetization recording this alloy is 1.62T, coercivity
For 25A/m.
Loss uses ac magnetization specificity analysis instrument (B H Curve Tracer, AC BH 100k) to measure through step
(4) after heat treatment, alloy is lost with magnetic induction change curve.Record this alloy at magnetic strength 1.0T, frequency 50Hz, 10kHz bar
Loss under part is respectively 1.68W/kg, 785W/kg, and the loss under the conditions of magnetic strength 0.2T, frequency 20kHz, 100kHz is respectively
For 107W/kg, 886W/kg.
Above-described embodiment has carried out system detailed description to technical solution of the present invention, it should be understood that upper described example is only
For the specific embodiment of the present invention, it is not limited to the present invention.All made in spirit of the present invention any amendment, benefit
Fill or equivalent etc., should be included within the scope of the present invention.
Claims (9)
1. a Fe-based nanocrystalline magnetically soft alloy material, it is characterised in that the alloy composition of this nanocrystalline magnetically soft alloy material meets
Molecular formula: FeaCobNicZrdBeCuf, in formula, subscript a, b, c, d, e, f represent the atomic percent of corresponding alloying element respectively, and
And meet following condition: 44≤a≤88,0≤b≤44,0≤c≤44,5≤d≤10,1≤e≤5,0.5≤f≤1.5, and a
+ b+c+d+e+f=100.
2. Fe-based nanocrystalline magnetically soft alloy material as claimed in claim 1, it is characterised in that the atomic percent of Fe is preferably
52.8≤a≤79.2。
3. Fe-based nanocrystalline magnetically soft alloy material as claimed in claim 1, it is characterised in that the atomic percent of Co is preferably
8.8≤b≤35.2。
4. Fe-based nanocrystalline magnetically soft alloy material as claimed in claim 1, it is characterised in that the atomic percent of Ni is preferably
8.8≤c≤26.4。
5. Fe-based nanocrystalline magnetically soft alloy material as claimed in claim 1, it is characterised in that described is nanocrystalline, its structure bag
Including noncrystal substrate and nanometer crystalline phase, wherein nanometer crystalline phase is the α (Fe, Co, Ni) of body-centered cubic structure, its average grain size
About 10nm.
6. the Fe-based nanocrystalline magnetically soft alloy material as described in any claim in Claims 1-4, it is characterised in that this conjunction
The saturation induction density of gold copper-base alloy is 1.54 1.79T, and coercivity is 7 28A/m.
7. the Fe-based nanocrystalline magnetically soft alloy material as described in any claim in Claims 1-4, it is characterised in that this conjunction
Gold copper-base alloy loss under the conditions of 1.0T, 50Hz, 10kHz is respectively 0.68 1.78W/kg and 465 875W/kg.
8. the Fe-based nanocrystalline magnetically soft alloy material as described in any claim in Claims 1-4, it is characterised in that this conjunction
Gold loss under the conditions of 0.2T, 20kHz, 100kHz is respectively 70 152W/kg and 433 1204W/kg.
9. a preparation method for the Fe-based nanocrystalline magnetically soft alloy material as described in any claim in Claims 1-4,
It is characterized in that the method comprises the following steps:
Step 1: by Fe, Co, Ni, Zr, B and the Cu in alloy compositions according to alloy ingredient FeaCobNicZrdBeCufCarry out
Dispensing, in formula, subscript a, b, c, d, e, f represent the atomic percent of corresponding alloying element respectively, and meet following condition: 44
≤ a≤88,0≤b≤44,0≤c≤44,5≤d≤10,1≤e≤5,0.5≤f≤1.5, a+b+c+d+e+f=100, wherein
Each material purity is all higher than 99%；
Step 2: raw material step 1 prepared loads in smelting furnace, carries out melting, become after cooling under inert atmosphere protection
Divide uniform mother alloy ingot；
Step 3: above-mentioned mother alloy ingot is broken for fritter sample, leaves the stone of nozzle bottom the alloy pig loading after crushing
Ying Guanzhong, prepares continuous print non-crystaline amorphous metal by single roller chilling method；Non-crystaline amorphous metal is ribbon, and width is 1 2mm, thickness
It is 20 25 μm；
Step 4: described non-crystaline amorphous metal is loaded in heat-treatment furnace, is evacuated to less than 1 × 10‐2Pa, carries out crystallization and thermal treatment, and
After be quickly quenching into room temperature, obtain nanocrystalline magnetically soft alloy material；Annealing temperature is 530 570 DEG C, and annealing temperature retention time is 45
75 minutes.
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| CN108624852A (en) * | 2017-03-15 | 2018-10-09 | 南京理工大学 | A kind of ferrozirconium amorphous multilayer film of high-curie temperature and preparation method thereof |
| CN109778082A (en) * | 2019-01-24 | 2019-05-21 | 南京航空航天大学 | A kind of Fe-based amorphous alloy and its preparation method and application of high/low temperature annealing toughness |
| CN113363042A (en) * | 2021-06-05 | 2021-09-07 | 合泰盟方电子（深圳）股份有限公司 | Thin film inductance material, preparation method thereof and double-sided thin film inductor |
| CN115608996A (en) * | 2021-07-28 | 2023-01-17 | 中国科学院宁波材料技术与工程研究所 | Iron-based nanocrystalline magnetically soft alloy powder and preparation method thereof |
| CN117430373A (en) * | 2023-12-21 | 2024-01-23 | 朗峰新材料启东有限公司 | Anti-interference nanocrystalline composite magnetic core material and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624852A (en) * | 2017-03-15 | 2018-10-09 | 南京理工大学 | A kind of ferrozirconium amorphous multilayer film of high-curie temperature and preparation method thereof |
| CN108624852B (en) * | 2017-03-15 | 2020-04-10 | 南京理工大学 | high-Curie-temperature Fe-Zr amorphous multilayer film and preparation method thereof |
| CN109778082A (en) * | 2019-01-24 | 2019-05-21 | 南京航空航天大学 | A kind of Fe-based amorphous alloy and its preparation method and application of high/low temperature annealing toughness |
| CN113363042A (en) * | 2021-06-05 | 2021-09-07 | 合泰盟方电子（深圳）股份有限公司 | Thin film inductance material, preparation method thereof and double-sided thin film inductor |
| CN113363042B (en) * | 2021-06-05 | 2022-05-20 | 合泰盟方电子（深圳）股份有限公司 | Thin film inductance material, preparation method thereof and double-sided thin film inductor |
| CN115608996A (en) * | 2021-07-28 | 2023-01-17 | 中国科学院宁波材料技术与工程研究所 | Iron-based nanocrystalline magnetically soft alloy powder and preparation method thereof |
| CN115608996B (en) * | 2021-07-28 | 2024-05-03 | 中国科学院宁波材料技术与工程研究所 | Iron-based nanocrystalline magnetically soft alloy powder and preparation method thereof |
| CN117430373A (en) * | 2023-12-21 | 2024-01-23 | 朗峰新材料启东有限公司 | Anti-interference nanocrystalline composite magnetic core material and preparation method thereof |
| CN117430373B (en) * | 2023-12-21 | 2024-02-23 | 朗峰新材料启东有限公司 | Anti-interference nanocrystalline composite magnetic core material and preparation method thereof |
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