CN106158223A - A kind of magnetic liquid metal and preparation method thereof - Google Patents
A kind of magnetic liquid metal and preparation method thereof Download PDFInfo
- Publication number
- CN106158223A CN106158223A CN201610576806.4A CN201610576806A CN106158223A CN 106158223 A CN106158223 A CN 106158223A CN 201610576806 A CN201610576806 A CN 201610576806A CN 106158223 A CN106158223 A CN 106158223A
- Authority
- CN
- China
- Prior art keywords
- liquid metal
- magnetic
- metal
- gallium
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/442—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a metal or alloy, e.g. Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
-
- 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
-
- 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
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of magnetic liquid metal, belong to liquid metal field.A kind of magnetic liquid metal of the present invention, is dispersed in liquid metal by magnetic nanoparticle and forms, and described magnetic nanoparticle is magnetic metal/metal-oxide double-layer compound particles.A kind of magnetic liquid metal of the present invention has high heat conductance, the physicochemical property such as high conductivity keeping liquid metal self to have, and makes liquid metal have stronger magnetic, flows or the feature of movement under the effect of relatively low externally-applied magnetic field.
Description
Technical field
The present invention relates to a kind of liquid metal, particularly a kind of magnetic liquid metal and preparation method thereof.
Background technology
Liquid metal refers generally at a temperature of less than room temperature, and metal or alloy remains to keep liquid condition.Generally use
Liquid metal alloy be gallium-indium alloy, or gallium-indium-ashbury metal.Its minimum fusing point can reach-19 DEG C.Liquid metal is soft
The fields such as robot, heat radiation, heat conduction, variable antenna, 3D printing can play a significant role.Although liquid metal material has excellent
Good mobility, electric conductivity, heat conductivity etc., but shortcoming is that being difficult to additional driving force makes liquid metal flows.Although electromagnetism
Pump can be used to drive liquid metal liquid in some occasion, but electromagnetic pump generally requires and adds the highest current intensity and reach foot
Enough strength drives liquid metal liquid.I.e. allowing to drive, liquid metal liquid also must be at Bottomhole pressure.This shortcoming pole
Big limits the liquid metal material application at aspects such as variable antenna, the soft machines of liquid metal.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of holding liquid metal self has
High heat conductance, the physicochemical property such as high conductivity, make liquid metal have stronger magnetic, under the effect of relatively low externally-applied magnetic field
Flowing or the magnetic liquid metal of movement.
The technical solution used in the present invention is as follows:
One magnetic liquid metal of the present invention, is dispersed in liquid metal by magnetic nanoparticle and forms, described magnetic Nano
Grain is magnetic metal/metal-oxide double-layer compound particles.
Owing to have employed technique scheme, liquid metal adds magnetic nanoparticle and can make liquid metal material
Obtain magnetic, make liquid metal material become possess heat conduction, conduction under conditions of, be provided simultaneously with ferromagnetic composite.Magnetic
Property liquid metal can flow under the driving of externally-applied magnetic field, when liquid metal through design magnetic field, it is possible to change liquid
The direction etc. of state metal flow.Magnetic for this tool liquid metal is applied to variable antenna, by changing external magnetic field, just
The size of antenna, direction etc. be can reach to change, thus the frequency of antenna, gain, the effect of electromagnetic wavelength parameter reached to adjust
Really.
A kind of magnetic liquid metal of the present invention, described magnetic nanoparticle includes magnetic metal kernel, described magnetic gold
Belong to outer surface and be covered with metal-oxide shell.
Owing to have employed technique scheme, magnetic can not only be prevented at magnetic metal outer wrapping metal-oxide shell
Nano-particle is oxidized and corrodes, additionally it is possible to the dipolar interaction of the sword of shielding magnetic nanoparticle, stops particle that group occurs
Poly-, improve the stability of magnetic nano metal fluid, magnetic nano particle wettability in liquid metal can be improved simultaneously, increase
Magnetic nanoparticle dissolubility in liquid metal.
A kind of magnetic liquid metal of the present invention, a diameter of 20 ~ 150nm of described kernel, the thickness of described shell is 8 ~
30nm。
Owing to have employed technique scheme, in the thickness of kernel and shell is optimum range.
Preferably, as a diameter of 50nm of kernel, shell thickness be 10nm be optimum.
A kind of magnetic liquid metal of the present invention, described magnetic metal is ferrum, nickel, cobalt, gadolinium or its alloy；Or ferrum, nickel,
At least one and copper in cobalt, gadolinium, aluminum, ferrum, gold, silver, magnesium, calcium, barium, nickel, zinc, chromium, vanadium, niobium, samarium, tungsten, titanium, rubidium, cadmium, praseodymium,
The alloy of at least one in dysprosium, terbium or antimony metal；Or at least one and silicon in ferrum, nickel, cobalt, gadolinium or boron at least one
Alloy.
Preferably, magnetic metal selects nickel or nickel silicon alloy to be optimal；When selecting nickel silicon alloy, the content of silicon is
7.4%, it is optimal when the content of nickel is 92.6%.
A kind of magnetic liquid metal of the present invention, it is characterised in that: described metal-oxide be aluminum, gallium, indium, germanium, stannum,
The oxide of at least one metal in lead, zinc, cadmium, copper, cobalt.
Preferably, metal-oxide selects aluminium sesquioxide be optimal, due to aluminium sesquioxide and liquid metal material it
Between wellability the strongest.
A kind of magnetic liquid metal of the present invention, the mass fraction of described magnetic nanoparticle is 1% ~ 27%.
Owing to have employed technique scheme, in order to reach higher saturation induction density, magnetic Nano can be increased
Granule is at the mass fraction of liquid metal mother solution weight, but when magnetic nanoparticle mass fraction is excessive, can largely effect on liquid
The physicochemical property of state metal, when the mass fraction of magnetic nanoparticle is more than 27%, can cause relatively the heat conductivity of liquid metal
Big impact.
Being preferably 4.2% optimal when the mass fraction of magnetic nanoparticle, the magnetic induction of liquid metal reaches
120emu/g。
A kind of magnetic liquid metal of the present invention, described liquid metal is gallio bianry alloy or gallio multicomponent alloy.
A kind of magnetic liquid metal of the present invention, described gallio bianry alloy is gallium-indium alloy, gallium metal or gallium amalgamation
Gold, described gallio multicomponent alloy is gallium-indium-tin alloy or gallium indium tin bismuth alloy.
Owing to have employed technique scheme, use gallio liquid metal can coordinate acquisition excellence with magnetic nanoparticle
Electromagnetic property and mobility, can prepare quickly and easily simultaneously one high heat conductance, high conductivity, high magnetic flux density,
Good fluidity, it is difficult to send out, is difficult to the magnetic liquid metal revealed.
The preparation method of the magnetic liquid metal of the present invention, comprises the following steps:
Step one, prepares magnetic nanoparticle；
Step 2, by liquid metal metal in addition to gallium in proportion with magnetic nanoparticle mix homogeneously；
Step 3, is heated to molten condition by mixed-powder in step 2, pours the gallium of molten condition in proportion into, keeps mixture
Fusion Strain, stirring, to mix homogeneously, prepares magnetic liquid metal material after natural cooling.
The preparation method of a kind of magnetic liquid metal of the present invention, described magnetic nanoparticle is by chemical coprecipitation, micro-
Emulsion method, ultrasound precipitation method, sol-gel process, hydro-thermal method, phase transfer method, Self-propagating high-temperature method, medium dispersing method, machine
Tool ball-milling method, supercritical methanol technology, electroless plating method or arc process are prepared from.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, make liquid metal material under conditions of possessing heat conduction, conduction, be provided simultaneously with ferromagnetism, it is possible to driving at externally-applied magnetic field
Flow under Dong, expanded the liquid metal material application at aspects such as variable antenna, the soft machines of liquid metal.
2, liquid metal coordinates electromagnetic property and the mobility obtaining excellence with magnetic nanoparticle, simultaneously can be quickly square
Just prepared a kind of high heat conductance, high conductivity, high magnetic flux density, good fluidity, it is difficult to send out, is difficult to the magnetic liquid revealed
State metal.
Detailed description of the invention
The present invention is described in detail below.
In order to make the purpose of invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is entered
Row further describes.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
Embodiment 1
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium-indium alloy, its
It is 39.4% that middle gallium accounts for liquid metal mass fraction, and it is 60.6% that indium accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for total matter
The 1% of amount, magnetic nanoparticle is Fe/ZnO double-layer compound particles, and magnetic nanoparticle includes that Fe kernel, Fe kernel outer surface cover
Having ZnO shell, a diameter of 20nm of kernel, the thickness of shell is 8nm.
The thermal conductivity of this magnetic liquid metal is 37W/mK, and magnetic induction is 63emu/g.
Embodiment 2
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium-indium alloy, its
It is 39.4% that middle gallium accounts for liquid metal mass fraction, and it is 60.6% that indium accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for total matter
The 27% of amount, magnetic nanoparticle is Fe/ZnO double-layer compound particles, and magnetic nanoparticle includes Fe kernel, Fe kernel outer surface
Being covered with ZnO shell, a diameter of 20nm of kernel, the thickness of shell is 8nm.
The thermal conductivity of this magnetic liquid metal is 36W/mK, and magnetic induction is 83emu/g.
Embodiment 3
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium metal, its
It is 47.1% that middle gallium accounts for liquid metal mass fraction, and it is 52.9% that indium accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for total matter
The 6.7% of amount, magnetic nanoparticle is Ti/CoO double-layer compound particles, and magnetic nanoparticle includes Ti kernel, Ti kernel outer surface
Being covered with CoO shell, a diameter of 150nm of kernel, the thickness of shell is 30nm.
The thermal conductivity of this magnetic liquid metal is 30W/mK, and magnetic induction is 89emu/g.
Embodiment 4
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is that gallium indium tin bismuth closes
Gold, wherein gallium accounts for liquid metal mass fraction is 62%, and it is 20% that indium accounts for liquid metal mass fraction, and stannum accounts for liquid metal quality and divides
Number is 12%, and it is 6% that bismuth accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for the 4.2% of gross mass, and magnetic nanoparticle is Ni/
Al2O3Double-layer compound particles, magnetic nanoparticle includes that Ni kernel, Ni kernel outer surface are covered with Al2O3Shell, the diameter of kernel
For 50nm, the thickness of shell is 10nm.
The thermal conductivity of this magnetic liquid metal is 73W/mK, and magnetic induction is 120emu/g.
Embodiment 5
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is that gallium indium tin bismuth closes
Gold, wherein gallium accounts for liquid metal mass fraction is 62%, and it is 20% that indium accounts for liquid metal mass fraction, and stannum accounts for liquid metal quality and divides
Number is 12%, and it is 6% that bismuth accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for the 1% of gross mass, and magnetic nanoparticle is Ni/
Al2O3Double-layer compound particles, magnetic nanoparticle includes that Ni kernel, Ni kernel outer surface are covered with Al2O3Shell, the diameter of kernel
For 50nm, the thickness of shell is 10nm.
The thermal conductivity of this magnetic liquid metal is 73W/mK, and magnetic induction is 108emu/g.
Embodiment 6
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is that gallium indium tin bismuth closes
Gold, wherein gallium accounts for liquid metal mass fraction is 62%, and it is 20% that indium accounts for liquid metal mass fraction, and stannum accounts for liquid metal quality and divides
Number is 12%, and it is 6% that bismuth accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for the 27% of gross mass, and magnetic nanoparticle is Ni/
Al2O3Double-layer compound particles, magnetic nanoparticle includes that Ni kernel, Ni kernel outer surface are covered with Al2O3Shell, the diameter of kernel
For 50nm, the thickness of shell is 10nm.
The thermal conductivity of this magnetic liquid metal is 64W/mK, and magnetic induction is 123emu/g.
Embodiment 7
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium-indium-tin alloy,
Wherein gallium accounts for liquid metal mass fraction is 59%, and it is 22% that indium accounts for liquid metal mass fraction, and stannum accounts for liquid metal mass fraction
Being 19%, magnetic nanoparticle accounts for the 12.7% of gross mass, and magnetic nanoparticle is Ni-Tb/GeO2Double-layer compound particles, magnetic is received
Rice grain includes Ni-Tb alloy core, and the content of terbium is 3.1%, and the content of nickel is 96.9%, and Ni-Tb alloy core outer surface covers
There is GeO2Shell, a diameter of 60nm of kernel, the thickness of shell is 25nm.
The thermal conductivity of this magnetic liquid metal is 68W/mK, and magnetic induction is 89emu/g.
Embodiment 8
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium-indium-tin alloy,
Wherein gallium accounts for liquid metal mass fraction is 64%, and it is 20% that indium accounts for liquid metal mass fraction, and stannum accounts for liquid metal mass fraction
Being 16%, magnetic nanoparticle accounts for the 20% of gross mass, and magnetic nanoparticle is Ni-Si/Al2O3Double-layer compound particles, magnetic Nano
Granule includes Ni-Si kernel, and the content of silicon is 7.4%, and the content of nickel is 92.6%, and Ni-Si kernel outer surface is covered with Al2O3Shell,
A diameter of 20nm of kernel, the thickness of shell is 20nm.
The thermal conductivity of this magnetic liquid metal is 69W/mK, and magnetic induction is 105emu/g.
Embodiment 9
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium-indium-tin alloy,
Wherein gallium accounts for liquid metal mass fraction is 64%, and it is 20% that indium accounts for liquid metal mass fraction, and stannum accounts for liquid metal mass fraction
Being 16%, magnetic nanoparticle accounts for the 10% of gross mass, and magnetic nanoparticle is Ni-Si/Al2O3Double-layer compound particles, magnetic Nano
Granule includes Ni-Si kernel, and the content of silicon is 7.4%, and the content of nickel is 92.6%, and Ni-Si kernel outer surface is covered with Al2O3Shell,
A diameter of 20nm of kernel, the thickness of shell is 20nm.
The thermal conductivity of this magnetic liquid metal is 70W/mK, and magnetic induction is 102emu/g.
Embodiment 10
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium amalgam, its
It is 57% that middle gallium accounts for liquid metal mass fraction, and it is 43% that hydrargyrum accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for gross mass
21%, magnetic nanoparticle is Gd/Ga2O3Double-layer compound particles, magnetic nanoparticle includes that Gd kernel, Gd kernel outer surface are covered with
Ga2O3Shell, a diameter of 130nm of kernel, the thickness of shell is 27nm.
The thermal conductivity of this magnetic liquid metal is 35W/mK, and magnetic induction is 60emu/g.
Embodiment 11
A kind of magnetic liquid metal, is dispersed in liquid metal by magnetic nanoparticle and forms, and liquid metal is gallium metal, its
It is 58% that middle gallium accounts for liquid metal mass fraction, and it is 42% that lead accounts for liquid metal mass fraction, and magnetic nanoparticle accounts for gross mass
3.7%, magnetic nanoparticle is Gd-Fe/PbO double-layer compound particles, and magnetic nanoparticle includes Gd-Fe kernel, and the content of gadolinium is
12.7%, the content of ferrum is 87.3%, and Gd-Fe kernel outer surface is covered with PdO shell, a diameter of 48nm of kernel, the thickness of shell
For 13nm.
The thermal conductivity of this magnetic liquid metal is 39W/mK, and magnetic induction is 74emu/g.
Embodiment 12
A kind of method preparing magnetic liquid metal, comprises the following steps:
Step one, prepares Ni/Al by arc process2O3Double-layer compound particles, this granule includes that Ni kernel, Ni kernel outer surface cover
There is Al2O3Shell, a diameter of 50nm of kernel, the thickness of shell is 10nm；
Step 2, mixes accounting for the indium that liquid metal total mass fraction is 20% with accounting for the stannum that liquid metal total mass fraction is 12%
After Jun Yun, taking and accounting for magnetic liquid total metal mass mark is the Ni/Al of 4.2%2O3Double-layer compound particles mix homogeneously；
Step 3, is heated to 250 DEG C by mixed-powder in step 2, and mixed-powder is molten condition, takes and accounts for matter in liquid metal
Amount mark be 62% gallium be heated to molten condition after, pour in the mixed liquor of molten state, according to stir speed (S.S.) be 400rpm stirring
2h, prepares magnetic liquid metal material after natural cooling.
The thermal conductivity of the magnetic liquid metal material prepared is 73W/mK, and magnetic induction is 120emu/g.
Embodiment 12
A kind of method preparing magnetic liquid metal, comprises the following steps:
Step one, prepares Gd/Ga by arc process2O3Double-layer compound particles, this granule includes that Gd kernel, Gd kernel outer surface cover
There is Ga2O3Shell, a diameter of 130nm of kernel, the thickness of shell is 27nm；
Step 2, will account for the hydrargyrum that liquid metal total mass fraction is 43%, and to account for magnetic liquid total metal mass mark be 21%
Gd/Ga2O3Double-layer compound particles mix homogeneously；
Step 3, is heated to 330 DEG C by mixed-powder in step 2, and mixed-powder is molten condition, takes and accounts for matter in liquid metal
Amount mark be 57% gallium be heated to molten condition after, pour in the mixed liquor of molten state, according to stir speed (S.S.) be 800rpm stirring
1h, prepares magnetic liquid metal material after natural cooling.
The thermal conductivity of the magnetic liquid metal material prepared is 35W/mK, and magnetic induction is 60emu/g.
Embodiment 13
The method of double-layer compound particles is prepared (with Ni/Al by arc process2O3As a example by), comprise the following steps:
Step one, by one piece of Ni-Al(20%Al, mass fraction) alloy be placed on the copper platform of water-cooled as anode, tungsten conduct
Negative electrode, carries out evacuation to reative cell under normal temperature condition；
Step 2, when vacuum reaches 3 × 10-3During Pa, being passed through helium and hydrogen, the helium pressure being passed through is 16kP, is passed through
Hydrogen Vapor Pressure is 2kP, and in regulation reative cell, the distance between two electrodes is 12cm；
Step 3, applies the voltage of 20 ~ 25V, the electric current of 50 ~ 60A, carries out electric arc reaction 5min between two electrodes；
Step 4, after stopping electric arc, is slowly introducing argon and oxygen in reative cell, and wherein the mass fraction of oxygen is 5%, will
Prepared sample is placed on water cooler, is passivated 24h, obtains Ni kernel outer surface and be covered with Al2O3Shell, a diameter of 50nm of kernel,
The thickness of shell is the Ni/Al of 10nm2O3Double-layer compound particles.
By adjusting the voltage between two electrodes, the distance between current intensity, and two electrodes is obtained in that kernel is straight
The double-layer compound particles that footpath is different, shell thickness is different；Use different alloys can prepare the two-layer compound of different materials
Grain.
The magnetic nanoparticle of the present invention can be by chemical coprecipitation, microemulsion method, ultrasound precipitation method, sol-gel
Method, hydro-thermal method, phase transfer method, Self-propagating high-temperature method, medium dispersing method, mechanical attrition method, supercritical methanol technology, electroless plating method or
Arc process is prepared from, and is not limited in arc process disclosed in the present embodiment, the same magnetic nanometer prepared by distinct methods
Granule, has identical character.
The magnetic metal of the present invention can be ferrum, nickel, cobalt, gadolinium or its alloy；Or in ferrum, nickel, cobalt, gadolinium at least one and
In copper, aluminum, ferrum, gold, silver, magnesium, calcium, barium, nickel, zinc, chromium, vanadium, niobium, samarium, tungsten, titanium, rubidium, cadmium, praseodymium, dysprosium, terbium or antimony metal at least
A kind of alloy；Or the alloy of at least one, is not limited in this reality at least one and silicon in ferrum, nickel, cobalt, gadolinium or boron
Execute liquid metal disclosed in example.
The metal-oxide of the present invention can be at least one metal in aluminum, gallium, indium, germanium, stannum, lead, zinc, cadmium, copper, cobalt
Oxide, is not limited in metal-oxide disclosed in the present embodiment.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. a magnetic liquid metal, it is characterised in that: it is dispersed in liquid metal by magnetic nanoparticle and forms, described magnetic
Nano-particle is magnetic metal/metal-oxide double-layer compound particles.
2. a kind of magnetic liquid metal as claimed in claim 1, it is characterised in that: described magnetic nanoparticle includes magnetic gold
Belonging to kernel, described magnetic metal outer surface is covered with metal-oxide shell.
3. a kind of magnetic liquid metal as claimed in claim 2, it is characterised in that: a diameter of 20 ~ 150nm of described kernel,
The thickness of described shell is 8 ~ 30nm.
4. as claimed in claim 2 or claim 3 a kind of magnetic liquid metal, it is characterised in that: described magnetic metal be ferrum, nickel, cobalt,
Gadolinium or its alloy；Or at least one and copper in ferrum, nickel, cobalt, gadolinium, aluminum, ferrum, gold, silver, magnesium, calcium, barium, nickel, zinc, chromium, vanadium,
The alloy of at least one in niobium, samarium, tungsten, titanium, rubidium, cadmium, praseodymium, dysprosium, terbium or antimony metal；Or at least in ferrum, nickel, cobalt, gadolinium
Kind and silicon or boron at least one alloy.
5. magnetic liquid metal as claimed in claim 4 a kind of, it is characterised in that: described metal-oxide be aluminum, gallium, indium,
The oxide of at least one metal in germanium, stannum, lead, zinc, cadmium, copper, cobalt.
6. a kind of magnetic liquid metal as described in claim 1 or 2 or 3 or 5, it is characterised in that: described magnetic nanoparticle
Mass fraction be 1% ~ 27%.
7. a kind of magnetic liquid metal as claimed in claim 6, it is characterised in that: described liquid metal is gallio bianry alloy
Or gallio multicomponent alloy.
8. a kind of magnetic liquid metal as claimed in claim 7, it is characterised in that: described gallio bianry alloy is that gallium indium closes
Gold, gallium metal or gallium amalgam, described gallio multicomponent alloy is gallium-indium-tin alloy or gallium indium tin bismuth alloy.
9. the preparation method of a magnetic liquid metal as claimed in claim 8, it is characterised in that comprise the following steps:
Step one, prepares magnetic nanoparticle；
Step 2, by liquid metal metal in addition to gallium in proportion with magnetic nanoparticle mix homogeneously；
Step 3, is heated to molten condition by mixed-powder in step 2, pours the gallium of molten condition in proportion into, keeps mixture
Fusion Strain, stirring, to mix homogeneously, prepares magnetic liquid metal material after natural cooling.
The preparation method of a kind of magnetic liquid metal the most as claimed in claim 9, it is characterised in that: described magnetic Nano
Grain is by chemical coprecipitation, microemulsion method, ultrasound precipitation method, sol-gel process, hydro-thermal method, phase transfer method, self propagating high temperature combustion
Burning method, medium dispersing method, mechanical attrition method, supercritical methanol technology, electroless plating method or arc process are prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610576806.4A CN106158223A (en) | 2016-07-21 | 2016-07-21 | A kind of magnetic liquid metal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610576806.4A CN106158223A (en) | 2016-07-21 | 2016-07-21 | A kind of magnetic liquid metal and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106158223A true CN106158223A (en) | 2016-11-23 |
Family
ID=58060476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610576806.4A Pending CN106158223A (en) | 2016-07-21 | 2016-07-21 | A kind of magnetic liquid metal and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106158223A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935353A (en) * | 2017-03-30 | 2017-07-07 | 清华大学 | A kind of magnetic porous liquid metal material and its preparation and application |
| CN107545973A (en) * | 2017-06-26 | 2018-01-05 | 中国科学院理化技术研究所 | A kind of liquid metal magnetohydrodynamic and preparation method thereof |
| CN107706525A (en) * | 2017-09-07 | 2018-02-16 | 云南靖创液态金属热控技术研发有限公司 | A kind of reconfigurable antenna |
| CN108441860A (en) * | 2018-06-29 | 2018-08-24 | 北京梦之墨科技有限公司 | A kind of anticorrosion coating material and its application method of room temperature self-curing |
| CN108746596A (en) * | 2018-06-29 | 2018-11-06 | 北京梦之墨科技有限公司 | A kind of 3D printing metal material and preparation method thereof and application method |
| CN108994292A (en) * | 2018-09-18 | 2018-12-14 | 北京梦之墨科技有限公司 | A kind of method of modifying of low-melting-point metal |
| CN109215889A (en) * | 2018-09-19 | 2019-01-15 | 东南大学 | A method of liquid metal is patterned using magnetic field |
| CN109894510A (en) * | 2019-03-28 | 2019-06-18 | 北京航空航天大学 | A kind of magnetic control 3-d deformable liquid metal machine |
| CN110106421A (en) * | 2019-04-26 | 2019-08-09 | 北京航空航天大学 | A kind of low temperature liquid metal magnetic paint and its preparation method and application |
| CN110911080A (en) * | 2019-12-09 | 2020-03-24 | 云南中宣液态金属科技有限公司 | Magnetic functional material based on low-melting-point metal and preparation method thereof |
| CN111087733A (en) * | 2019-12-25 | 2020-05-01 | 南京航空航天大学 | Liquid metal-based one-dimensional aluminum oxide and two-dimensional nickel oxide reinforced polymethacrylimide foam material and preparation method thereof |
| CN111243817A (en) * | 2020-02-17 | 2020-06-05 | 河北地质大学 | Amorphous nano-particle liquid metal magnetic fluid and preparation method thereof |
| CN111383812A (en) * | 2018-12-27 | 2020-07-07 | 中国科学院理化技术研究所 | Novel liquid metal magnetofluid and preparation method thereof |
| CN112941388A (en) * | 2021-01-28 | 2021-06-11 | 燕山大学 | DSC test result-based liquid metal with melting point temperature lower than 6 ℃ and preparation method thereof |
| CN113571278A (en) * | 2021-07-22 | 2021-10-29 | 包头天和磁材科技股份有限公司 | Magnetic powder, method for forming magnetic powder, rare earth sintered permanent magnet, and method for producing rare earth sintered permanent magnet |
| CN115121795A (en) * | 2022-05-31 | 2022-09-30 | 烟台南山学院 | Shell structure capable of driving metal gallium drops to move, and preparation method and application method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7393463B2 (en) * | 2005-09-16 | 2008-07-01 | Gm Global Technology Operations, Inc. | High temperature magnetorheological fluid compositions and devices |
| CN104124031A (en) * | 2013-04-28 | 2014-10-29 | 中国科学院理化技术研究所 | Magnetic nanometer-sized metal fluid and preparation method thereof |
-
2016
- 2016-07-21 CN CN201610576806.4A patent/CN106158223A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7393463B2 (en) * | 2005-09-16 | 2008-07-01 | Gm Global Technology Operations, Inc. | High temperature magnetorheological fluid compositions and devices |
| CN104124031A (en) * | 2013-04-28 | 2014-10-29 | 中国科学院理化技术研究所 | Magnetic nanometer-sized metal fluid and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| SHUCHUN ZHAO: "Ga-based magneticfluid with Al2O3-coated Ni nanoparticles", 《RSC ADVANCES》 * |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935353A (en) * | 2017-03-30 | 2017-07-07 | 清华大学 | A kind of magnetic porous liquid metal material and its preparation and application |
| CN106935353B (en) * | 2017-03-30 | 2018-08-28 | 清华大学 | A kind of magnetic porous liquid metal material and its preparation and application |
| CN107545973A (en) * | 2017-06-26 | 2018-01-05 | 中国科学院理化技术研究所 | A kind of liquid metal magnetohydrodynamic and preparation method thereof |
| CN107706525A (en) * | 2017-09-07 | 2018-02-16 | 云南靖创液态金属热控技术研发有限公司 | A kind of reconfigurable antenna |
| CN108441860A (en) * | 2018-06-29 | 2018-08-24 | 北京梦之墨科技有限公司 | A kind of anticorrosion coating material and its application method of room temperature self-curing |
| CN108746596A (en) * | 2018-06-29 | 2018-11-06 | 北京梦之墨科技有限公司 | A kind of 3D printing metal material and preparation method thereof and application method |
| CN108441860B (en) * | 2018-06-29 | 2019-06-11 | 北京梦之墨科技有限公司 | A kind of anticorrosion coating material and its application method of room temperature self-curing |
| CN108746596B (en) * | 2018-06-29 | 2019-06-11 | 北京梦之墨科技有限公司 | A kind of 3D printing metal material and preparation method thereof and application method |
| CN108994292A (en) * | 2018-09-18 | 2018-12-14 | 北京梦之墨科技有限公司 | A kind of method of modifying of low-melting-point metal |
| CN109215889A (en) * | 2018-09-19 | 2019-01-15 | 东南大学 | A method of liquid metal is patterned using magnetic field |
| CN111383812A (en) * | 2018-12-27 | 2020-07-07 | 中国科学院理化技术研究所 | Novel liquid metal magnetofluid and preparation method thereof |
| CN111383812B (en) * | 2018-12-27 | 2021-10-29 | 中国科学院理化技术研究所 | Novel liquid metal magnetofluid and preparation method thereof |
| CN109894510A (en) * | 2019-03-28 | 2019-06-18 | 北京航空航天大学 | A kind of magnetic control 3-d deformable liquid metal machine |
| CN110106421A (en) * | 2019-04-26 | 2019-08-09 | 北京航空航天大学 | A kind of low temperature liquid metal magnetic paint and its preparation method and application |
| CN110911080A (en) * | 2019-12-09 | 2020-03-24 | 云南中宣液态金属科技有限公司 | Magnetic functional material based on low-melting-point metal and preparation method thereof |
| CN111087733A (en) * | 2019-12-25 | 2020-05-01 | 南京航空航天大学 | Liquid metal-based one-dimensional aluminum oxide and two-dimensional nickel oxide reinforced polymethacrylimide foam material and preparation method thereof |
| CN111087733B (en) * | 2019-12-25 | 2021-05-04 | 南京航空航天大学 | Liquid metal-based one-dimensional aluminum oxide and two-dimensional nickel oxide reinforced polymethacrylimide foam material and preparation method thereof |
| CN111243817A (en) * | 2020-02-17 | 2020-06-05 | 河北地质大学 | Amorphous nano-particle liquid metal magnetic fluid and preparation method thereof |
| CN112941388A (en) * | 2021-01-28 | 2021-06-11 | 燕山大学 | DSC test result-based liquid metal with melting point temperature lower than 6 ℃ and preparation method thereof |
| CN113571278A (en) * | 2021-07-22 | 2021-10-29 | 包头天和磁材科技股份有限公司 | Magnetic powder, method for forming magnetic powder, rare earth sintered permanent magnet, and method for producing rare earth sintered permanent magnet |
| CN113571278B (en) * | 2021-07-22 | 2024-05-24 | 包头天和磁材科技股份有限公司 | Magnetic powder, method for forming magnetic powder, rare earth sintered permanent magnet and method for producing the same |
| CN115121795A (en) * | 2022-05-31 | 2022-09-30 | 烟台南山学院 | Shell structure capable of driving metal gallium drops to move, and preparation method and application method thereof |
| CN115121795B (en) * | 2022-05-31 | 2023-08-22 | 烟台南山学院 | Shell structure capable of driving gallium drops to move and preparation method and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106158223A (en) | A kind of magnetic liquid metal and preparation method thereof | |
| CN110029246B (en) | Preparation method of yttrium oxide dispersion strengthened copper alloy | |
| CN107671298B (en) | A kind of high frequency FeSiAl alloy powder and preparation method thereof | |
| CN105063403A (en) | Preparation method of copper matrix graphene alloy | |
| CN105063401A (en) | Preparation method of aluminum base graphene alloy | |
| Jing et al. | Influence of Ag-modified graphene nanosheets addition into Sn–Ag–Cu solders on the formation and growth of intermetallic compound layers | |
| CN106756417B (en) | A kind of method of controllable preparation CoCrCuFeNi high-entropy alloy powders | |
| CN110129609B (en) | Preparation method of zirconium dioxide dispersion strengthened copper alloy | |
| CN106825587A (en) | A kind of method for preparing oxide dispersion intensifying ferrous alloy | |
| CN105112694A (en) | Preparation method of magnesium base graphene alloy | |
| CN105063404A (en) | Preparation method of titanium matrix graphene alloy | |
| CN105063402A (en) | Preparation method of aluminum base graphene alloy | |
| CN103752822B (en) | A kind of composite granule and preparation method thereof | |
| CN105779829B (en) | A kind of high-end aluminum alloy materials HF-13 and preparation method thereof | |
| CN109843479A (en) | Metal increasing material manufacturing metal powder and the molding made using the metal powder | |
| CN105063405A (en) | Preparation method of copper matrix graphene alloy | |
| Zoz et al. | Improve Ag-SnO~ 2 Electrical Contact Material Produced by Mechanical Alloying | |
| CN114231855B (en) | Preparation method of arc fuse of ODS steel | |
| Li et al. | Research Status of Evolution of Microstructure and Properties of Sn‐Based Lead‐Free Composite Solder Alloys | |
| CN105537602A (en) | Rapid large-scale preparing method for spherical ultra-high-temperature alloy powder for 3D printing | |
| CN109332717A (en) | A kind of preparation method of spherical shape molybdenum titanium-zirconium alloy powder | |
| CN109853001A (en) | The device and method that direct-reduction metallic compound prepares metal or alloy powder | |
| CN109609805A (en) | A kind of preparation process of c-based nanomaterial enhancing low melting point composite material | |
| Lin et al. | Novel Sn-0.7 Cu composite solder reinforced with ultrafine nanoscale nickel particles/porous carbon | |
| CN107127334B (en) | A kind of nano particle and preparation method thereof of carbide-metal nucleocapsid structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |