CN109440021A - A kind of iron-based amorphous and nanocrystalline soft magnetic alloy and its preparation method and application - Google Patents
A kind of iron-based amorphous and nanocrystalline soft magnetic alloy and its preparation method and application Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
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- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- 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
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- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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Abstract
The invention belongs to magnetically soft alloy technical field of function materials, a kind of iron-based amorphous and nanocrystalline soft magnetic alloy and its preparation method and application, the molecular formula of the iron-based amorphous and nanocrystalline soft magnetic alloy are as follows: Fe are disclosed73.5Si13.5B9Cu1Nb3‑xNix；Wherein, x=0,1.3,1.8 or 2.3.After iron, silicon, boron source, copper, niobium and nickel are carried out melting by the present invention, alloy pig is obtained；It is cleaned after alloy pig is crushed, then carries out getting rid of band, obtain amorphous alloy strip；Under conditions of vacuum or protective atmosphere, by amorphous alloy strip after 430~450 DEG C are heat-treated, iron-based amorphous and nanocrystalline soft magnetic alloy is obtained.The experimental results showed that being completely amorphous structure by iron-based amorphous and nanocrystalline soft magnetic alloy obtained, and there is high saturated magnetic induction, the excellent soft magnet performance such as low-coercivity.And reduce the dosage of expensive metallic element Nb, significantly reduce the cost of material.
Description
Technical field
The invention belongs to magnetically soft alloy technical field of function materials, soft more particularly, to a kind of iron-based amorphous nanometer crystalline
Magnetic alloy and its preparation method and application.
Background technique
With being constantly progressive for society, due to computer network, high density recording technology, electric system and the micro- chinaware of high frequency
The development in the fields such as part and needs increasingly require various components used to have high-performance, high-quality, small-sized, light weight, this
Require that preparing the Metallic Functional Materials such as the magnetically soft alloy of these devices is continuously improved performance.Among these, amorphous soft-magnetic alloy is equal
By respective parent metal and it is nonmetallic form, the former is ferromagnetic element (iron, cobalt, nickel or their combination), they use
To generate magnetism；The latter is vitrifying element, and main function is the critical cooling rate for reducing Formation of Amorphous Alloy state, is easy to
Obtain amorphous state.Magnesium-yttrium-transition metal (zirconium, hafnium, niobium etc.) and rare earth metal are also easy to form amorphous alloy, energy with iron, cobalt, nickel
Enough substitute nonmetalloid.
The Fe-based amorphous alloy that developed since late 1960s and the later period eighties are again in Fe-based amorphous alloy
On the basis of develop Fe-based amorphous nanocrystalline alloy since, become in electric power and electronic communication industry magnetic elements used
The research hotspot of soft magnetic materials at present not only in material and process aspect, and all achieves huge progress in application aspect,
It is widely used in various power equipments and electronic device.
Fe-based amorphous/nano-crystal soft magnetic alloy has excellent soft magnet performance, such as high saturated magnetic induction, low coercive
The features such as power, high magnetic permeability, low-loss is the research hotspot in material and Condensed Matter Physics field always for decades.Moreover,
The preparation process of Fe-based amorphous/nano-crystal soft magnetic alloy is simple, low in cost, is widely used in transformer, inductor, biography
The fields such as sensor all have a good application prospect.Japanese Yoshizawa in 1988 et al. first discovery Fe-Si-B-Cu-Nb
Alloy system.Develop by 20 years of researches, main development becomes three substantially to current Fe-based amorphous/nanometer crystal alloy
System, i.e. Finemet (Fe73.5Si13.5B9Cu1Nb3) be alloy, Nanoperm (Fe-M-B, M=Zr, Hf, Nb etc.) be alloy and
HITPERM (Fe-Co-M-B, M=Zr, Hf, Nb etc.) is alloy.
Wherein, Finemet alloy is primarily now applied, with its preferable soft magnet performance and lower cost in many necks
Domain has obtained extensive popularization.But with the development and requirement in downstream application field, since its saturation induction density is lower,
Compared with the silicon steel of high saturated magnetic induction, under equal conditions application needs biggish volume, does not adapt to lightweight, small
The demand for development of type, it is serious to limit its application.
Therefore, how to obtain a kind of with high saturation induction density and low-coercivity, meet lightweight, miniaturization
Demand for development, it has also become the focus of many researcher's extensive concerns of industry.
Summary of the invention
In order to solve above-mentioned the shortcomings of the prior art and disadvantage, the present invention provides a kind of iron-based amorphous nanometer crystalline is soft
Magnetic alloy.Iron-based amorphous and nanocrystalline soft magnetic alloy (the FeSiBCuNb system amorphous alloy) saturation induction density with higher
With lower coercivity.
Another object of the present invention is to provide a kind of preparation methods of above-mentioned iron-based amorphous and nanocrystalline soft magnetic alloy.The party
Method is in Fe73.5Si13.5B9Cu1Nb3It on the basis of alloy, is designed by ingredient, substitutes existing iron based soft magnetic materials with the part Ni
In noble metal Nb, reduce the content of noble metal Nb, preparation process is simple, is suitable for scale industrial production, while also dropping
Its low cost.
A further object of the present invention is to provide the applications of above-mentioned iron-based amorphous and nanocrystalline soft magnetic alloy.
The purpose of the present invention is realized by following technical proposals:
A kind of iron-based amorphous and nanocrystalline soft magnetic alloy, the molecular formula of the iron-based amorphous and nanocrystalline soft magnetic alloy are as follows:
Fe73.5Si13.5B9Cu1Nb3-xNix；Wherein, x=0,1.3,1.8 or 2.3.
Preferably, the molecular formula of the iron-based amorphous and nanocrystalline soft magnetic alloy is Fe73.5Si13.5B9Cu1Nb0.7Ni2.3。
The preparation method of the iron-based amorphous and nanocrystalline soft magnetic alloy, comprising the following specific steps
S1. after iron, silicon, boron source, copper, niobium and nickel being carried out melting, alloy pig is obtained；
S2. it is cleaned after alloy pig being crushed, then carries out getting rid of band, obtain amorphous alloy strip；
S3. under conditions of vacuum or protective atmosphere, obtained amorphous alloy strip is subjected to hot place at 430~450 DEG C
After reason, iron-based amorphous and nanocrystalline soft magnetic alloy is obtained.
Preferably, boron source described in step S1 is boron and/or ferro-boron.
Preferably, the temperature of melting described in step S1 is 1100~1350 DEG C；The time of the melting is 1~5min；
The number of the melting is 3~6 times.
Preferably, band is got rid of described in step S2 gets rid of band for single roller chilling；The chilling roller linear velocity for getting rid of band is 45~55m/
s。
Preferably, the width of amorphous alloy strip described in step S2 is 1~2mm；The amorphous alloy strip with a thickness of 20
~40 μm.
Preferably, the cleaning agent of cleaning described in step S2 is ethyl alcohol and/or acetone.
Preferably, the time of heat treatment described in step S3 is 10~60min；The heating rate of the heat treatment be 10~
20℃/min；The protective atmosphere is argon gas or nitrogen.
Application of the iron-based amorphous and nanocrystalline soft magnetic alloy in amorphous transformer Material Field.
Compared with prior art, the invention has the following advantages:
1. iron-based amorphous and nanocrystalline soft magnetic alloy (FeSiBCuNb system amorphous alloy) prepared by the present invention is completely amorphous
The structure of state, and there is high saturated magnetic induction, the excellent soft magnet performance such as low-coercivity.Its saturation magnetization can reach
1.42T, coercivity can reach 4.7A/m, effectively optimize the soft magnet performance of FeSiBCuNb system amorphous alloy.
2. usually the content of noble metal need to be reduced for the considerations of reducing cost, i.e., adds or do not add expensive less as far as possible
Metal Nb, and the increase of nickel content can then reduce the content of Nb accordingly, so as to cause the shape of nanocrystalline presoma (amorphous)
Decline at ability, and be unfavorable for the preparation of amorphous band, finally reduces magnetic property.And the present invention is by being added specific element
Nickel reduces the dosage of metallic element Nb, significantly reduces the cost of material, also optimize the FeSiBCuNb system amorphous alloy
Soft magnet performance, this is because amorphous band produced by the present invention is completely amorphous structure, FeSiBCuNb system amorphous alloy it is non-
Brilliant Forming ability is impacted less, and soft magnet performance is good.
Detailed description of the invention
Fig. 1 is the process flow diagram that the present invention prepares iron-based amorphous and nanocrystalline soft magnetic alloy.
Fig. 2 is the X-ray diffractogram of the amorphous thin ribbon prepared in embodiment 1-3.
Fig. 3 is the magnetization curve figure of the Fe-based amorphous nanocrystalline alloy prepared in embodiment 1-3.
Fig. 4 is that the increased variation of coercivity Ni content of the Fe-based amorphous nanocrystalline alloy prepared in embodiment 1-3 is bent
Line.
Specific embodiment
The contents of the present invention are further illustrated combined with specific embodiments below, but should not be construed as limiting the invention.
Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.Except non-specifically
Illustrate, reagent that the present invention uses, method and apparatus is the art conventional reagents, method and apparatus.
Embodiment 1
The chemical formula of Fe-based amorphous nanocrystalline alloy is Fe in the present embodiment73.5Si13.5B9Cu1Nb1.7Ni1.3.Fig. 1 is this
Invention prepares the process flow diagram of Fe-based amorphous alloy.
1. preparation:
(1) prepared by master alloy raw material: pressing Fe73.5Si13.5B9Cu1Nb1.7Ni1.3Atomic percent is converted to matter by chemical formula
Percentage is measured, weighs Fe (99.9%), FeB (17.51%) alloy, Si (99%) block, Cu (99.9%) block Nb respectively in proportion
(99.9%) block and Ni (99.9%).
(2) foundry alloy melting: the raw material prepared is put into vacuum arc melting furnace, is evacuated to 5 × 10 to furnace body-3Afterwards
It is filled with argon gas/nitrogen atmosphere protection and closes charging valve when air pressure in furnace is higher than atmospheric pressure 0.01Mpa.It is former to heat melting
Material continues melting 3 minutes, is subsequently cooled to solidify, repeat melting 4 times, obtain after quickly being overturn after raw material is completely melt
To the uniform alloy pig of ingredient.
(3) alloy pig cleans: alloy pig being broken for fritter alloy, and is put into the beaker equipped with ethyl alcohol or acetone and carries out
Cleaning.
(4) prepared by amorphous thin ribbon: will be fitted into the quartz ampoule of lower ending opening after the cleaning of fritter alloy, is subsequently placed in and gets rid of band and set
In standby induction coil, it is evacuated to 5 × 10-3Being filled with purity afterwards is 99.99% high-purity argon gas as protective gas, adjusts electricity
Stream makes alloy melting, during which controls temperature at 1250 DEG C, controls the time 2 minutes, when alloy melting and when there is white light, utilizes gas
Alloy under molten condition is ejected into the copper roller surface that revolving speed is 50m/s by pressure difference, and obtained width is about 1mm, and thickness is about 20 μ
The amorphous ribbon strip of m.
(5) structure detection is carried out to alloy strip steel rolled stock with X-ray diffractometer, so that it is determined that the glass of alloy to form energy
Power.X=1.3 is the X-ray diffractogram of amorphous thin ribbon manufactured in the present embodiment in Fig. 2.As shown in Figure 2, complete amorphous ribbon
Material about has the diffraction maximums of widthization disperse at 45 °, and in other ranges without obvious sharp crystallization peak.
(6) Crystallizing treatment: amorphous thin ribbon being put into heat-treatment furnace and is made annealing treatment, and is warming up to 440 DEG C with furnace, heat preservation
Strip is taken out after then cooling to room temperature with the furnace, is obtained Fe-based amorphous wherein being 20 DEG C/min with furnace heating rate by 10min
Nanometer crystal alloy.
2. performance test: being detected to Fe-based amorphous nanocrystalline alloy manufactured in the present embodiment.With magnetic detection equipment
(vibrating specimen magnetometer VSM and soft magnetism DC test instrument) strip after annealing is carried out respectively saturation induction density (Ms) and
Coercivity (Hc) performance test.Gained performance parameter is as shown in the picture, wherein Bs=4 π × (ρ × Ms) × 10-4(T).X in Fig. 3
=1.3 be the magnetization curve figure of Fe-based amorphous nanocrystalline alloy manufactured in the present embodiment.X=1.3 is the present embodiment preparation in Fig. 4
Fe-based amorphous nanocrystalline alloy coercitive change curve.It can be seen that Fe-based amorphous prepared by the present embodiment receive
The brilliant magnetically soft alloy Fe of rice73.5Si13.5B9Cu1Nb1.7Ni1.3, saturation magnetization 1.39T, coercivity 4.7A/m；As a result
Show that obtained Fe-based amorphous alloy soft magnet performance is good.
Embodiment 2
The chemical formula of Fe-based amorphous nanocrystalline alloy is Fe in the present embodiment73.5Si13.5B9Cu1Nb1.2Ni1.8。
1. preparation:
(1) prepared by master alloy raw material: pressing Fe73.5Si13.5B9Cu1Nb1.2Ni1.8Atomic percent is converted to matter by chemical formula
Percentage is measured, weighs Fe (99.9%), FeB (17.51%) alloy, Si (99%) block, Cu (99.9%) block Nb respectively in proportion
(99.9%) block and Ni (99.9%).
(2) foundry alloy melting: the raw material prepared is put into vacuum arc melting furnace, is evacuated to 5 × 10 to furnace body-3Afterwards
It is filled with argon gas/nitrogen protection atmosphere, when air pressure in furnace is higher than atmospheric pressure 0.01Mpa, closes charging valve.It is former to heat melting
Material continues melting 3 minutes, is subsequently cooled to solidify, repeat melting 4 times, obtain after quickly being overturn after raw material is completely melt
To the uniform alloy pig of ingredient.
(3) alloy pig cleans: alloy pig being broken for fritter alloy, and is put into the beaker equipped with ethyl alcohol or acetone and carries out
Cleaning.
(4) prepared by amorphous thin ribbon: will be fitted into the quartz ampoule of lower ending opening after the cleaning of fritter alloy, is subsequently placed in and gets rid of band and set
In standby induction coil, it is evacuated to 5 × 10-3Being filled with purity afterwards is 99.99% high-purity argon gas as protective gas, adjusts electricity
Stream makes alloy melting, during which controls temperature at 1250 DEG C, controls the time 2 minutes, when alloy melting and when there is white light, utilizes gas
Alloy under molten condition is ejected into the copper roller surface that revolving speed is 50m/s by pressure difference, and obtained width is about 1mm, and thickness is about 20 μ
The amorphous ribbon strip of m.
(5) structure detection is carried out to alloy strip steel rolled stock with X-ray diffractometer, so that it is determined that the glass of alloy to form energy
Power.X=1.8 is the X-ray diffractogram of amorphous thin ribbon manufactured in the present embodiment in Fig. 2.As shown in Figure 2, complete amorphous ribbon
Material about has the diffraction maximums of widthization disperse at 45 °, and in other ranges without obvious sharp crystallization peak.
(6) Crystallizing treatment: amorphous thin ribbon being put into heat-treatment furnace and is made annealing treatment, and is warming up to 440 DEG C with furnace, heat preservation
Strip is taken out after then cooling to room temperature with the furnace, is obtained Fe-based amorphous wherein being 20 DEG C/min with furnace heating rate by 10min
Nanometer crystal alloy.
2. performance test: being detected to Fe-based amorphous nanocrystalline alloy manufactured in the present embodiment.With magnetic detection equipment
(vibrating specimen magnetometer VSM and soft magnetism DC test instrument) strip after annealing is carried out respectively saturation induction density (Ms) and
Coercivity (Hc) performance test.Gained performance parameter is as shown in the picture, wherein Bs=4 π × (ρ × Ms) × 10-4(T).X in Fig. 3
=1.8 be the magnetization curve figure of Fe-based amorphous nanocrystalline alloy manufactured in the present embodiment.X=1.8 is the present embodiment preparation in Fig. 4
Fe-based amorphous nanocrystalline alloy coercitive change curve.The results show that Fe-based amorphous nanometer prepared by the present embodiment
Brilliant magnetically soft alloy Fe73.5Si13.5B9Cu1Nb1.2Ni1.8, saturation magnetization 1.41T, coercivity 6.5A/m.
Embodiment 3
The chemical formula of Fe-based amorphous nanocrystalline alloy is Fe in the present embodiment73.5Si13.5B9Cu1Nb0.7Ni2.3。
1. preparation:
(1) prepared by master alloy raw material: pressing Fe73.5Si13.5B9Cu1Nb0.7Ni2.3Atomic percent is converted to matter by chemical formula
Percentage is measured, weighs Fe (99.9%), FeB (17.51%) alloy, Si (99%) block, Cu (99.9%) block Nb respectively in proportion
(99.9%) block and Ni (99.9%).
(2) foundry alloy melting: the raw material prepared is put into vacuum arc melting furnace, is evacuated to 5 × 10 to furnace body-3Afterwards
It is filled with argon gas/nitrogen atmosphere protection and closes charging valve when air pressure in furnace is higher than atmospheric pressure 0.01Mpa.It is former to heat melting
Material continues melting 3 minutes, is subsequently cooled to solidify, repeat melting 4 times, obtain after quickly being overturn after raw material is completely melt
To the uniform alloy pig of ingredient.
(3) alloy pig cleans: alloy pig being broken for fritter alloy, and is put into the beaker equipped with ethyl alcohol or acetone and carries out
Cleaning.
(4) prepared by amorphous thin ribbon: will be fitted into the quartz ampoule of lower ending opening after the cleaning of fritter alloy, is subsequently placed in and gets rid of band and set
In standby induction coil, it is evacuated to 5 × 10-3Being filled with purity afterwards is 99.99% high-purity argon gas as protective gas, adjusts electricity
Stream makes alloy melting, during which controls temperature at 1250 DEG C, controls the time 2 minutes, when alloy melting and when there is white light, utilizes gas
Alloy under molten condition is ejected into the copper roller surface that revolving speed is 50m/s by pressure difference, and obtained width is about 1mm, and thickness is about 20 μ
The amorphous ribbon strip of m.
(5) structure detection is carried out to alloy strip steel rolled stock with X-ray diffractometer, so that it is determined that the glass of alloy to form energy
Power.X=2.3 is the X-ray diffractogram of amorphous thin ribbon manufactured in the present embodiment in Fig. 2.As shown in Figure 2, complete amorphous ribbon
Material about has the diffraction maximums of widthization disperse at 45 °, and in other ranges without obvious sharp crystallization peak.
(6) Crystallizing treatment: amorphous thin ribbon being put into heat-treatment furnace and is made annealing treatment, and is warming up to 440 DEG C with furnace, heat preservation
Strip is taken out after then cooling to room temperature with the furnace, is obtained Fe-based amorphous wherein being 20 DEG C/min with furnace heating rate by 10min
Nanometer crystal alloy.
2. performance test: being detected to Fe-based amorphous nanocrystalline alloy manufactured in the present embodiment.With magnetic detection equipment
(vibrating specimen magnetometer VSM and soft magnetism DC test instrument) strip after annealing is carried out respectively saturation induction density (Ms) and
Coercivity (Hc) performance test.Gained performance parameter is as shown in the picture, wherein Bs=4 π × (ρ × Ms) × 10-4(T).X in Fig. 3
=2.3 be the magnetization curve figure of Fe-based amorphous nanocrystalline alloy manufactured in the present embodiment.X=2.3 is the present embodiment preparation in Fig. 4
Fe-based amorphous nanocrystalline alloy coercitive change curve.The results show that Fe-based amorphous nanometer prepared by the present embodiment
Brilliant magnetically soft alloy Fe73.5Si13.5B9Cu1Nb0.7Ni2.3, saturation magnetization 1.42T, coercivity 10.8A/m.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by change, modification, substitution, combination and simplify,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of iron-based amorphous and nanocrystalline soft magnetic alloy, which is characterized in that the molecule of the iron-based amorphous and nanocrystalline soft magnetic alloy
Formula are as follows: Fe73.5Si13.5B9Cu1Nb3-xNix；Wherein, x=0,1.3,1.8 or 2.3.
2. iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 1, which is characterized in that the iron-based amorphous nanometer crystalline
The molecular formula of magnetically soft alloy is Fe73.5Si13.5B9Cu1Nb0.7Ni2.3。
3. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 1 or 2, which is characterized in that including
Step in detail below:
S1. after iron, silicon, boron source, copper, niobium and nickel being carried out melting, alloy pig is obtained；
S2. it is cleaned after alloy pig being crushed, then carries out getting rid of band, obtain amorphous alloy strip；
S3. under conditions of vacuum or protective atmosphere, by obtained amorphous alloy strip after 430~450 DEG C are heat-treated,
Obtain iron-based amorphous and nanocrystalline soft magnetic alloy.
4. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 3, which is characterized in that in step S1
The boron source is boron and/or ferro-boron.
5. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 3, which is characterized in that in step S1
The temperature of the melting is 1100~1350 DEG C；The time of the melting is 1~5min；The number of the melting is 3~6 times.
6. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 3, which is characterized in that in step S2
The band that gets rid of is that single roller chilling gets rid of band；The chilling roller linear velocity for getting rid of band is 45~55m/s.
7. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 3, which is characterized in that in step S2
The width of the amorphous alloy strip is 1~2mm；The amorphous alloy strip with a thickness of 20~40 μm.
8. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 3, which is characterized in that in step S2
The cleaning agent of the cleaning is ethyl alcohol and/or acetone.
9. the preparation method of iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 3, which is characterized in that in step S3
The time of the heat treatment is 10~60min；The heating rate of the heat treatment is 10~20 DEG C/min；The protective atmosphere
For argon gas or nitrogen.
10. application of the iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 1 or 2 in amorphous transformer field.
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| CN109295401A (en) * | 2018-12-11 | 2019-02-01 | 广东工业大学 | A kind of new iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof |
| CN110586884A (en) * | 2019-09-17 | 2019-12-20 | 江苏奥玛德新材料科技有限公司 | Preparation method of ultrathin amorphous alloy strip |
| CN112164541A (en) * | 2020-10-15 | 2021-01-01 | 太原理工大学 | Anti-direct-current iron-based nanocrystalline alloy and preparation method thereof |
| CN112877616A (en) * | 2021-01-11 | 2021-06-01 | 秦皇岛市燕秦纳米科技有限公司 | Preparation method of low-remanence amorphous nanocrystalline soft magnetic material |
| CN112951343A (en) * | 2021-01-20 | 2021-06-11 | 桂林电子科技大学 | Machine learning-based iron-based amorphous nano soft magnetic alloy design method |
| CN115992334A (en) * | 2022-12-28 | 2023-04-21 | 广东咏旺新材料科技有限公司 | Iron-based amorphous/nanocrystalline material with high Bs, and preparation method and application thereof |
| WO2024130936A1 (en) * | 2022-12-19 | 2024-06-27 | 青岛云路先进材料技术股份有限公司 | Amorphous nanocrystalline soft magnetic alloy thin strip and magnetic core |
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| CN109295401A (en) * | 2018-12-11 | 2019-02-01 | 广东工业大学 | A kind of new iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof |
| CN110586884A (en) * | 2019-09-17 | 2019-12-20 | 江苏奥玛德新材料科技有限公司 | Preparation method of ultrathin amorphous alloy strip |
| CN112164541A (en) * | 2020-10-15 | 2021-01-01 | 太原理工大学 | Anti-direct-current iron-based nanocrystalline alloy and preparation method thereof |
| CN112877616A (en) * | 2021-01-11 | 2021-06-01 | 秦皇岛市燕秦纳米科技有限公司 | Preparation method of low-remanence amorphous nanocrystalline soft magnetic material |
| CN112877616B (en) * | 2021-01-11 | 2022-06-24 | 秦皇岛市燕秦纳米科技有限公司 | Preparation method of low-remanence amorphous nanocrystalline soft magnetic material |
| CN112951343A (en) * | 2021-01-20 | 2021-06-11 | 桂林电子科技大学 | Machine learning-based iron-based amorphous nano soft magnetic alloy design method |
| CN112951343B (en) * | 2021-01-20 | 2022-08-30 | 桂林电子科技大学 | Machine learning-based iron-based amorphous nano soft magnetic alloy design method |
| WO2024130936A1 (en) * | 2022-12-19 | 2024-06-27 | 青岛云路先进材料技术股份有限公司 | Amorphous nanocrystalline soft magnetic alloy thin strip and magnetic core |
| CN115992334A (en) * | 2022-12-28 | 2023-04-21 | 广东咏旺新材料科技有限公司 | Iron-based amorphous/nanocrystalline material with high Bs, and preparation method and application thereof |
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