CN105132781A - Soft magnetic alloy material - Google Patents
Soft magnetic alloy material Download PDFInfo
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- CN105132781A CN105132781A CN201510566950.5A CN201510566950A CN105132781A CN 105132781 A CN105132781 A CN 105132781A CN 201510566950 A CN201510566950 A CN 201510566950A CN 105132781 A CN105132781 A CN 105132781A
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Abstract
The invention relates to soft magnetic alloy material. In terms of total atomic weight of each composition element, the soft magnetic alloy material comprises, in atomic percentages, 43-43.5% of iron, 43-43.5% of cobalt, 0.1-0.5% of scandium, 0.8-1.2% of copper, 6.5-7.5% of born and 4-5% of X, wherein X comprises niobium, samarium and gadolinium.
Description
Technical field
The invention belongs to magnetic functional material technical field, refer to a kind of magnetically soft 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 soft magnetic materials and the preparation method of high saturation and magnetic intensity and high-curie temperature.
The present invention is achieved by the following technical solutions:
A kind of magnetically soft 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 scandium of 0.1-0.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, 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 nanocrystalline magnetically soft 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%;
2), by iron, cobalt, scandium, 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.
The invention provides a kind of magnetically soft 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 scandium of 0.1-0.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, 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 nanocrystalline magnetically soft 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%;
2), by iron, cobalt, scandium, 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, scandium, 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; Atom percentage composition is selected to be: the iron of 43%, the cobalt of 43%, the scandium of 0.1%, the copper of 0.8%, 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, scandium, 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, scandium, 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; Atom percentage composition is selected to be: the iron of 43.5%, the cobalt of 43.5%, 0.3% and scandium, the copper of 1.2%, 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, scandium, 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, scandium, 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; Atom percentage composition is selected to be: the iron of 43.3%, the cobalt of 43.3%, the scandium of 0.15%, the copper of 1.0%, 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, scandium, 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. a magnetically soft alloy material, its composition, with the total atom gauge of each component, 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 scandium of 0.1-0.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, the X of 4-5%; Described X includes niobium, samarium and gadolinium.
2. magnetically soft alloy material according to claim 1, is characterized in that: described iron and cobalt are 1: 1 by atom composition percentage composition ratio.
3. magnetically soft 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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| CN201510566950.5A CN105132781A (en) | 2015-09-08 | 2015-09-08 | Soft magnetic alloy material |
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| CN201510566950.5A CN105132781A (en) | 2015-09-08 | 2015-09-08 | Soft magnetic alloy material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337151A (en) * | 2016-08-22 | 2017-01-18 | 吴雅萍 | Soft magnetic alloy material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925781A (en) * | 2012-09-10 | 2013-02-13 | 顾建 | Nanocrystalline soft magnetic alloy material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102925781A (en) * | 2012-09-10 | 2013-02-13 | 顾建 | Nanocrystalline soft magnetic alloy material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337151A (en) * | 2016-08-22 | 2017-01-18 | 吴雅萍 | Soft magnetic alloy material |
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