CN105349919A - Nanocrystalline magnetic alloy material - Google Patents
Nanocrystalline magnetic alloy material Download PDFInfo
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- CN105349919A CN105349919A CN201510737237.2A CN201510737237A CN105349919A CN 105349919 A CN105349919 A CN 105349919A CN 201510737237 A CN201510737237 A CN 201510737237A CN 105349919 A CN105349919 A CN 105349919A
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- Prior art keywords
- iron
- alloy
- cobalt
- atom
- alloy material
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/04—Amorphous alloys with nickel or cobalt as the major constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15325—Amorphous metallic alloys, e.g. glassy metals containing rare earths
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
- C22C2200/04—Nanocrystalline
Abstract
The invention relates to a nanocrystalline magnetic alloy material. The nanocrystalline magnetic alloy material is prepared from, by total atomic weight, 43% to 43.5% of iron, 43% to 43.5% of cobalt, 0.8% to 1.2% of copper, 6.5% to 7.5% of boron, 1% to 3% of titanium, 2% to 4% of tellurium and 4% to 5% of X. X includes niobium, samarium and gadolinium.
Description
Technical field
The invention belongs to magnetic functional material technical field, refer to a kind of nano-crystal magnetic alloy material especially.
Background technology
Soft magnetic materials due to coercive force little, easy magnetization and demagnetization are widely used in magnetically permeable material field, as aspects such as computer, mobile phone, flat panel display technology, and in the device such as various magnetic amplifier, filter coil, variable-frequency electric sensor, variable-frequency transformer, inverter, energy storage inductance.
Current soft magnetic materials is mainly soft magnetic ferrites, and its Curie temperature is low, and when temperature is more than 100 DEG C, Saturation magnetic sense intensity declines obviously, and therefore its use temperature scope is restricted; Moreover its Saturation magnetic sense intensity is low, limit its popularization in miniaturization and complanation.
Nano crystal soft magnetic material, the singularity because of its structure makes it to possess high magnetic permeability, and the performance such as high saturation and magnetic intensity and low-coercivity obtains common concern.The nanocrystalline magnetically soft alloy material of existing practical application is normally standby by Amorphous Crystallization legal system, and its shape and size are extremely restricted, and the nano crystal soft magnetic material that obtain bulk must pulverize rear sintering to non-crystaline amorphous metal.But sintering temperature is high usually, and the time is long, and the crystal grain obtained is long, causes non-retentive alloy performance not good.
Summary of the invention
The object of this invention is to provide one, can to realize crystal grain little, and possess nanocrystalline material and the preparation method of high saturation and magnetic intensity and high-curie temperature.
The present invention is achieved by the following technical solutions:
Nano-crystal magnetic alloy material, its composition is with the total atom gauge of each component, and the atom percentage composition of each composition is: the iron of 43-43.5%, the cobalt of 43-43.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, the titanium of 1-3%, the tellurium of 2-4%, the X of 4-5%; Described X includes niobium, samarium and gadolinium.
Described iron and cobalt are 1: 1 by atom composition percentage composition ratio.
Described niobium, samarium and gadolinium are 2.5: 1.5: 1 by atom composition percentage composition ratio.
The preparation method of nano-crystal magnetic alloy material, comprises the steps:
1), prepare iron-X master alloy, in iron-X master alloy, the weight percent that X accounts for master alloy is 15%; Prepare iron tellurium alloy, in iron tellurium alloy, the weight percent that tellurium accounts for alloy is 10-30%;
2), by iron, cobalt, titanium, copper, boron and step 1) master alloy press atomic percent batching, through the obtained alloy pig of melting cooling at arc heating furnace 1000-1300 DEG C;
3), by step 2) obtained alloy pig obtains amorphous thin ribbon after cutting, and by this strip through 250-450 DEG C, the time is pulverize after thermal treatment in 1-2 hour, and powder particle diameter is 20-40nm;
4) by step 3) pulverize after powder put into mould, at 50-55MPa, 750-780 DEG C, sinter 8-8.5 minute.
The invention has the beneficial effects as follows:
By the technical program, crystal particle diameter is less than 70nm, has between higher Curie temperature 580-680 DEG C, between higher saturation magnetization 1.70-1.95T.
Embodiment
Technical scheme of the present invention is described in detail below by way of specific embodiment.
Nano-crystal magnetic alloy material, its composition is with the total atom gauge of each component, and the atom percentage composition of each composition is: the iron of 43-43.5%, the cobalt of 43-43.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, the titanium of 1-3%, the tellurium of 2-4%, the X of 4-5%; Described X includes niobium, samarium and gadolinium.
Described iron and cobalt are 1.5: 1 by atom composition percentage composition ratio.
Described niobium, samarium and gadolinium are 2.5: 1.5: 1 by atom composition percentage composition ratio.
The preparation method of nano-crystal magnetic alloy material, comprises the steps:
1), prepare iron-X master alloy, in iron-X master alloy, the weight percent that X accounts for master alloy is 15%; Prepare iron tellurium alloy, in iron tellurium alloy, the weight percent that tellurium accounts for alloy is 10-30%;
2), by iron, cobalt, titanium, copper, boron and step 1) master alloy press atomic percent batching, through the obtained alloy pig of melting cooling at arc heating furnace 1000-1300 DEG C;
3), by step 2) obtained alloy pig obtains amorphous thin ribbon after cutting, and by this strip through 250-450 DEG C, the time is pulverize after thermal treatment in 1-2 hour, and powder particle diameter is 20-40nm;
4) by step 3) pulverize after powder put into mould, at 50-55MPa, 750-780 DEG C, sinter 8-8.5 minute.
Embodiment 1
Calculate the amount of required component, select purity at the iron of about 99.5-99.9%, cobalt, titanium, copper, boron, X is accounted for X with iron by X and obtains master alloy with the standard system that iron weight percent is 15%, described master alloy is processed into bulk; Prepare iron tellurium alloy, in iron tellurium alloy, the weight percent that tellurium accounts for alloy is 10%; Atom percentage composition is selected to be: the iron of 43%, the cobalt of 43%, the copper of 0.8%, the titanium of 1%, the boron of 6.5%, the X of 4%; Described X includes niobium, samarium and gadolinium; Described niobium, samarium and gadolinium are 2.5: 1.5: 1 by atom composition percentage composition ratio; Described iron and cobalt are 1: 1 by atom composition percentage composition ratio.By iron, cobalt, copper, atomic percent batching pressed by boron and master alloy, through the obtained alloy pig of melting cooling at arc heating furnace 1000-1300 DEG C; By obtained alloy pig obtained amorphous thin ribbon after cutting, and by this strip through 450 DEG C, the time is pulverize after thermal treatment in 2 hours, and powder particle diameter is 20-40nm; Powder after pulverizing is put into mould, at 55MPa, at 750 DEG C, sinters 8-8.5 minute.
Embodiment 2
Calculate the amount of required component, select purity at the iron of about 99.5-99.9%, cobalt, copper, boron, X is accounted for X with iron by X and obtains master alloy with the standard system that iron weight percent is 15%, described master alloy is processed into bulk; Prepare iron tellurium alloy, in iron tellurium alloy, the weight percent that tellurium accounts for alloy is 20%; Atom percentage composition is selected to be: the iron of 43.5%, the cobalt of 43.5%, the copper of 1.2%, the titanium of 2%, the boron of 7.5%, the X of 5%; Described X includes niobium, samarium and gadolinium; Described niobium, samarium and gadolinium are 2.5: 1.5: 1 by atom composition percentage composition ratio; Described iron and cobalt are 1: 1 by atom composition percentage composition ratio.By iron, cobalt, copper, atomic percent batching pressed by boron and master alloy, through the obtained alloy pig of melting cooling at arc heating furnace 1000-1300 DEG C; By obtained alloy pig obtained amorphous thin ribbon after cutting, and by this strip through 400 DEG C, the time is pulverize after thermal treatment in 2 hours, and powder particle diameter is 20-40nm; Powder after pulverizing is put into mould, at 50MPa, at 780 DEG C, sinters 8-8.5 minute.
Embodiment 3
Calculate the amount of required component, select purity at the iron of about 99.5-99.9%, cobalt, copper, boron, X is accounted for X with iron by X and obtains master alloy with the standard system that iron weight percent is 15%, described master alloy is processed into bulk; Prepare iron tellurium alloy, in iron tellurium alloy, the weight percent that tellurium accounts for alloy is 30%; Atom percentage composition is selected to be: the iron of 43.3%, the cobalt of 43.3%, the copper of 1.0%, the titanium of 3%, the boron of 7%, the X of 4.5%; Described X includes niobium, samarium and gadolinium; Described niobium, samarium and gadolinium are 2.5: 1.5: 1 by atom composition percentage composition ratio; Described iron and cobalt are 1: 1 by atom composition percentage composition ratio.By iron, cobalt, copper, atomic percent batching pressed by boron and master alloy, through the obtained alloy pig of melting cooling at arc heating furnace 1000-1300 DEG C; By obtained alloy pig obtained amorphous thin ribbon after cutting, and by this strip through 350 DEG C, the time is pulverize after thermal treatment in 2 hours, and powder particle diameter is 20-40nm; Powder after pulverizing is put into mould, at 55MPa, at 750 DEG C, sinters 8-8.5 minute.
Claims (3)
1. nano-crystal magnetic alloy material, its composition is with the total atom gauge of each component, it is characterized in that: the atom percentage composition of each composition is: the iron of 43-43.5%, the cobalt of 43-43.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, the titanium of 1-3%, the tellurium of 2-4%, the X of 4-5%; Described X includes niobium, samarium and gadolinium.
2. nano-crystal magnetic alloy material according to claim 1, is characterized in that: described iron and cobalt are 1: 1 by atom composition percentage composition ratio.
3. nano-crystal magnetic alloy material according to claim 1, is characterized in that: described niobium, and samarium and gadolinium are 2.5: 1.5: 1 by atom composition percentage composition ratio.
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|---|---|---|---|
| CN201510737237.2A CN105349919A (en) | 2015-11-03 | 2015-11-03 | Nanocrystalline magnetic alloy material |
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| CN201510737237.2A CN105349919A (en) | 2015-11-03 | 2015-11-03 | Nanocrystalline magnetic alloy material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349918A (en) * | 2015-11-03 | 2016-02-24 | 顾建 | Nanocrystalline magnetic alloy material and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864362A (en) * | 2012-09-10 | 2013-01-09 | 任静儿 | Nanocrystalline magnetically soft alloy material and preparation method thereof |
| CN102925781A (en) * | 2012-09-10 | 2013-02-13 | 顾建 | Nanocrystalline soft magnetic alloy material |
| CN102925782A (en) * | 2012-09-10 | 2013-02-13 | 顾建 | Nanocrystalline magnetically soft alloy material and preparation method |
| CN105349918A (en) * | 2015-11-03 | 2016-02-24 | 顾建 | Nanocrystalline magnetic alloy material and preparation method |
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- 2015-11-03 CN CN201510737237.2A patent/CN105349919A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864362A (en) * | 2012-09-10 | 2013-01-09 | 任静儿 | Nanocrystalline magnetically soft alloy material and preparation method thereof |
| CN102925781A (en) * | 2012-09-10 | 2013-02-13 | 顾建 | Nanocrystalline soft magnetic alloy material |
| CN102925782A (en) * | 2012-09-10 | 2013-02-13 | 顾建 | Nanocrystalline magnetically soft alloy material and preparation method |
| CN105349918A (en) * | 2015-11-03 | 2016-02-24 | 顾建 | Nanocrystalline magnetic alloy material and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349918A (en) * | 2015-11-03 | 2016-02-24 | 顾建 | Nanocrystalline magnetic alloy material and preparation method |
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Application publication date: 20160224 |