CN106683818A - Nano-crystalline soft magnetic soft alloy material - Google Patents

Nano-crystalline soft magnetic soft alloy material Download PDF

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Publication number
CN106683818A
CN106683818A CN201611010110.1A CN201611010110A CN106683818A CN 106683818 A CN106683818 A CN 106683818A CN 201611010110 A CN201611010110 A CN 201611010110A CN 106683818 A CN106683818 A CN 106683818A
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ferrum
cobalt
alloy material
composition
atom
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俞虹
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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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
    • H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

The invention relates to a nano-crystalline soft magnetic alloy material. The material comprises, by total atomic weight, 43-43.5% of iron, 43-43.5% of cobalt, 0.8-1.2% of copper, 6.5-7.5% of boron, 1-3% of germanium, and 4-5% of X, wherein the X comprises niobium, samarium and gadolinium.

Description

Nanocrystalline magnetically soft alloy material
Technical field
The invention belongs to magnetic functional material technical field, particularly relates to a kind of nanocrystalline magnetically soft alloy material.
Background technology
Soft magnetic materials is little due to coercivity, and easily magnetization and demagnetization is widely used in permeability magnetic material field, such as computer, handss The aspects such as machine, flat panel display technology, and various magnetic amplifiers, filter coil, frequency conversion inducer, variable-frequency transformer, inverter, In the devices such as energy storage inductance.
Current soft magnetic materials is mainly soft magnetic ferrites, and its Curie temperature is low, satisfies when temperature is more than 100 DEG C Decline substantially with magnetic induction, therefore it is restricted using temperature range；Furthermore its Saturation magnetic sense intensity is low, limit its Miniaturization and the popularization of planarization.
Nano crystal soft magnetic material, because the particularity of its structure is allowed to possess high pcrmeability, high saturation and magnetic intensity and low The performances such as coercivity obtain common concern.The nanocrystalline magnetically soft alloy material of existing practical application is typically by Amorphous Crystallization legal system Standby, its shape and size is extremely restricted, and to obtain after the nano crystal soft magnetic material of bulk must crush to non-crystaline amorphous metal Sintering.But generally sintering temperature is high, the time is long, and the crystal grain for obtaining is long, causes magnetically soft alloy performance not good.
The content of the invention
It is an object of the invention to provide one kind can realize that crystal grain is little, and possess high saturation and magnetic intensity and high-curie temperature Nanocrystalline material and preparation method.
The present invention is achieved by the following technical solutions：
Nanocrystalline magnetically soft alloy material, its composition is with the total atom gauge of each component, the atom group of each composition It is into percentage ratio：The ferrum 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 germanium of 1-3%, The X of 4-5%；Described X includes niobium, samarium and gadolinium.
It is 1: 1 that the ferrum and cobalt press atom composition percentage composition ratio.
It is 2.5: 1.5: 1 that the niobium, samarium and gadolinium press atom composition percentage composition ratio.
The preparation method of nanocrystalline magnetically soft alloy material, comprises the steps：
1) ferrum-X intermediate alloys, are prepared, in ferrum-X intermediate alloys, it is 15% that X accounts for the percentage by weight of intermediate alloy；
2), by ferrum, cobalt, copper, germanium, boron and step 1) intermediate alloy press atomic percent dispensing, in arc heating furnace Smelting cooling at 1000-1300 DEG C is obtained alloy pig；
3), by step 2) obtained in alloy pig it is cleaved after prepared amorphous thin ribbon, and by strip Jing 250-450 DEG C, when Between to crush after 1-2 hour heat treatments, powder particle diameter is 20-40nm；
4) by step 3) crush after powder be put into mould, in 50-55MPa, at 750-780 DEG C sinter 8-8.5 minutes.
The invention has the beneficial effects as follows：
By the technical program, crystal particle diameter is less than 70nm, has between 580-680 DEG C of higher Curie temperature, higher Between saturation magnetization 1.70-1.95T.
Specific embodiment
Technical scheme is described in detail below by way of specific embodiment.
Nanocrystalline magnetically soft alloy material, its composition is with the total atom gauge of each component, the atom group of each composition It is into percentage ratio：The ferrum 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 germanium of 1-3%, The X of 4-5%；Described X includes niobium, samarium and gadolinium.
It is 1.5: 1 that the ferrum and cobalt press atom composition percentage composition ratio.
It is 2.5: 1.5: 1 that the niobium, samarium and gadolinium press atom composition percentage composition ratio.
The preparation method of nanocrystalline magnetically soft alloy material, comprises the steps：
1) ferrum-X intermediate alloys, are prepared, in ferrum-X intermediate alloys, it is 15% that X accounts for the percentage by weight of intermediate alloy；
2), by ferrum, cobalt, copper, germanium, boron and step 1) intermediate alloy press atomic percent dispensing, in arc heating furnace Smelting cooling at 1000-1300 DEG C is obtained alloy pig；
3), by step 2) obtained in alloy pig it is cleaved after prepared amorphous thin ribbon, and by strip Jing 250-450 DEG C, when Between to crush after 1-2 hour heat treatments, powder particle diameter is 20-40nm；
4) by step 3) crush after powder be put into mould, in 50-55MPa, at 750-780 DEG C sinter 8-8.5 minutes.
Embodiment 1
The amount of component needed for calculating, from purity 99.5-99.9% or so ferrum, cobalt, copper, germanium, boron is same by X Ferrum accounts for X and intermediate alloy is obtained with the standard that ferrum percentage by weight is 15% by X, and the intermediate alloy is processed into bulk；From original Sub- percentage composition is：43% ferrum, 43% cobalt, 0.8% copper, 6.5% boron, 1% germanium, 4% X；Described X bags Niobium, samarium and gadolinium are included；It is 2.5: 1.5: 1 that the niobium, samarium and gadolinium press atom composition percentage composition ratio；The ferrum and cobalt press atom group It is 1: 1 into percentage composition ratio.By ferrum, cobalt, copper, boron and intermediate alloy press atomic percent dispensing, in arc heating furnace 1000- Smelting cooling at 1300 DEG C is obtained alloy pig；By obtained alloy pig it is cleaved after prepared amorphous thin ribbon, and by strip Jing 450 DEG C, the time is to crush after 2 hours heat treatments, and powder particle diameter is 20-40nm；Powder after crushing is put into into mould, 55MPa, sinters 8-8.5 minutes at 750 DEG C.
Embodiment 2
The amount of component needed for calculating, from purity 99.5-99.9% or so ferrum, cobalt, copper, germanium, boron is same by X Ferrum accounts for X and intermediate alloy is obtained with the standard that ferrum percentage by weight is 15% by X, and the intermediate alloy is processed into bulk；From original Sub- percentage composition is：43.5% ferrum, 43.5% cobalt, 1.2% copper, 7.5% boron, 3% germanium, 5% X；It is described X include niobium, samarium and gadolinium；It is 2.5: 1.5: 1 that the niobium, samarium and gadolinium press atom composition percentage composition ratio；The ferrum and cobalt are pressed Atom composition percentage composition ratio is 1: 1.By ferrum, cobalt, copper, boron and intermediate alloy press atomic percent dispensing, in arc heating furnace Smelting cooling at 1000-1300 DEG C is obtained alloy pig；By obtained alloy pig it is cleaved after prepared amorphous thin ribbon, it is and this is thin 400 DEG C of Jing of band, the time is to crush after 2 hours heat treatments, and powder particle diameter is 20-40nm；Powder after crushing is put into into mould, 50MPa, sinters 8-8.5 minutes at 780 DEG C.
Embodiment 3
The amount of component needed for calculating, from purity 99.5-99.9% or so ferrum, cobalt, copper, germanium, boron is same by X Ferrum accounts for X and intermediate alloy is obtained with the standard that ferrum percentage by weight is 15% by X, and the intermediate alloy is processed into bulk；From original Sub- percentage composition is：43.3% ferrum, 43.3% cobalt, 1.0% copper, 7% boron, 2% germanium, 4.5% X；It is described X include niobium, samarium and gadolinium；It is 2.5: 1.5: 1 that the niobium, samarium and gadolinium press atom composition percentage composition ratio；The ferrum and cobalt are pressed Atom composition percentage composition ratio is 1: 1.By ferrum, cobalt, copper, boron and intermediate alloy press atomic percent dispensing, in arc heating furnace Smelting cooling at 1000-1300 DEG C is obtained alloy pig；By obtained alloy pig it is cleaved after prepared amorphous thin ribbon, it is and this is thin 350 DEG C of Jing of band, the time is to crush after 2 hours heat treatments, and powder particle diameter is 20-40nm；Powder after crushing is put into into mould, 55MPa, sinters 8-8.5 minutes at 750 DEG C.

Claims (3)

1. nanocrystalline magnetically soft alloy material, its composition is with the total atom gauge of each component, it is characterised in that：Each composition Atom percentage composition be：The ferrum of 43-43.5%, the cobalt of 43-43.5%, the copper of 0.8-1.2%, the boron of 6.5-7.5%, 1- 3% germanium, the X of 4-5%；Described X includes niobium, samarium and gadolinium.
2. nanocrystalline magnetically soft alloy material according to claim 1, it is characterised in that：The ferrum and cobalt press atom composition hundred Content ratio is divided to be 1: 1.
3. nanocrystalline magnetically soft alloy material according to claim 1, it is characterised in that：The niobium, samarium and gadolinium press atom group It is 2.5: 1.5: 1 into percentage composition ratio.
CN201611010110.1A 2016-11-16 2016-11-16 Nano-crystalline soft magnetic soft alloy material Pending CN106683818A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106782983A (en) * 2016-11-16 2017-05-31 俞虹 Nanocrystalline magnetically soft alloy material and preparation method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260494A (en) * 2008-04-16 2008-09-10 北京航空航天大学 Ge doping FeCo-base diphase soft magnetic alloy
CN102864362A (en) * 2012-09-10 2013-01-09 任静儿 Nanocrystalline magnetically soft alloy material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260494A (en) * 2008-04-16 2008-09-10 北京航空航天大学 Ge doping FeCo-base diphase soft magnetic alloy
CN102864362A (en) * 2012-09-10 2013-01-09 任静儿 Nanocrystalline magnetically soft alloy material and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106782983A (en) * 2016-11-16 2017-05-31 俞虹 Nanocrystalline magnetically soft alloy material and preparation method

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