CN108754357A - A kind of SiC nanowire enhancing aluminum silicon carbide composite material and preparation method thereof - Google Patents
A kind of SiC nanowire enhancing aluminum silicon carbide composite material and preparation method thereof Download PDFInfo
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- CN108754357A CN108754357A CN201810528739.8A CN201810528739A CN108754357A CN 108754357 A CN108754357 A CN 108754357A CN 201810528739 A CN201810528739 A CN 201810528739A CN 108754357 A CN108754357 A CN 108754357A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5053—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials non-oxide ceramics
- C04B41/5062—Borides, Nitrides or Silicides
- C04B41/5064—Boron nitride
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/04—Pretreatment of the fibres or filaments by coating, e.g. with a protective or activated covering
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
- C23C16/342—Boron nitride
Abstract
A kind of SiC nanowire enhancing aluminum silicon carbide composite material, by foam silicon carbide ceramics, SiC nanowire, BN boundary layers, silicon carbide and aluminium alloy composition, it is characterized in that SiC nanowire growth in situ is in foam silicon carbide ceramics, BN boundary layers are coated on SiC nanowire and foam silicon carbide ceramics surface, and silicon carbide and aluminium alloy filler are inside foam silicon carbide ceramics and surface layer；The foam silicon carbide ceramics density is 0.3 ~ 0.6g/cm3, porosity is 70 ~ 90%, and hole density is 15 ~ 35PPI；A diameter of 50 ~ the 200nm of the SiC nanowire, length are 0.5 ~ 3mm；The BN interfacial layer thickness is 0.05 ~ 0.3 μm；The carborundum powder grain size is 0.5 ~ 1 μm, and purity is 97 ~ 99%.The present invention enhances aluminum silicon carbide composite material using SiC nanowire, and the preparation process period is short, it is easy to accomplish；It gives full play to the toughened and reinforced of SiC nanowire and improves the effect of interface cohesion, improve fracture toughness and shock resistance of aluminum silicon carbide composite material etc..
Description
Technical field
The present invention relates to a kind of aluminum silicon carbide composite material and preparation method thereof, more particularly to a kind of SiC nanowire enhancing
Aluminum silicon carbide composite material and preparation method thereof.
Background technology
Aluminum silicon carbide composite material has high specific strength and specific stiffness, wear-resisting, low thermal coefficient of expansion, low-density, good
Dimensional stability and thermal conductivity have been widely used in the industry fields such as aerospace, military field and automobile, electronics.
But since aluminium and silicon carbide interface physical chemistry compatibility be not high, two-phase interface, which combines, to be difficult to control, and material internal can not be kept away
Exempt from there are holes and micro-crack, cause the fracture toughness, impact strength and thermal shock resistance of aluminium silicon carbide insufficient, together
When, excessive silicon carbide is difficult to be uniformly dispersed in aluminum substrate, be easy to cause the excessively high stress concentration in part, limits aluminium carbon
Application power of the SiClx in high-end structural member and functor.
SiC nanowire is a kind of nanometer reinforcement haveing excellent performance, and tensile strength can reach 53.4GPa, fine much larger than SiC
Peacekeeping SiC whiskers, especially ultralong SiC nanowires can not only improve the interface cohesion of two-phase, it is often more important that can also incite somebody to action
Two-phase matrix firmly locks each other, to greatly enhance the intensity of aluminum silicon carbide composite material.Ultralong SiC nanowires are raw in situ
It grows on foam silicon carbide ceramics, since ultralong SiC nanowires radial radial grows to foam silicon carbide ceramics internal voids
In, effectively hole can be divided and improve the specific surface area in foam silicon carbide ceramics, be convenient for aluminium and sic foam
The combination of ceramics, effectively improves the mechanical property of aluminium silicon carbide；And ultralong SiC nanowires can also be by disperseing pressure, splitting
Line deflects and the toughening mechanisms such as bridging, effectively Strengthening and Toughening aluminum silicon carbide composite material.
The Chinese invention patent of Publication No. CN104726734B is authorized to disclose a kind of SiC/Al composite materials that prepare
Method, this method are：By aluminium oxide and/or silicon oxide powder and dispersant ball-milling medium ball milling, binder continuation is added
Ball milling obtains coating slurry；Wherein, powder：Dispersant：Water：Ball-milling medium：The mass ratio of binder is 1:0.005~0.01:
0.1~0.4:2:0.01~0.03；Mesh porous SiC ceramics are immersed in coating slurry and fully absorbed, centrifuged and dry it；Again will
Secondary coating mesh porous SiC ceramics embedment aluminum or aluminum alloy powder in, vacuumize heating aluminum or aluminum alloy is melted after, be passed through
Argon gas, heat-insulation pressure keeping obtain SiC/Al composite materials.SiC/Al composite materials obtained by the method for the present invention are two-arch tunnel, are led to
The composition and performance for crossing control coating slurry, achievees the purpose that control interface structure and interfacial reaction, realize silicon carbide substrate with
Strong between metal Al combines and is distributed in three dimensions uniformly continuous, avoid the segregation of SiC reinforcement body with it is discontinuous,
Improve composite property.
Authorize the Chinese invention patent of Publication No. CN104658920B disclose a kind of aluminium silicon carbide preparation method and its
Gained aluminium silicon carbide, the preparation method of aluminium silicon carbide, including powder and aluminising are filled out, filling out powder step includes：By powder packed to aluminium base
In the groove of plate, powder plate is formed；The aluminium foil for being 0.5mm in the surface laying depth of powder plate；It is not added with except aluminium in aluminium silicon carbide
With other additives other than silicon carbide.Aluminium silicon carbide preparation method provided by the invention on the surface of sic powder by spreading
If the aluminium foil of 0.5mm thickness, then aluminising is carried out, molten aluminum washes away silicon carbide layer during can preventing aluminising, ensures aluminising step
Gained aluminium silicon carbide material inside organization is uniform afterwards.And method provided by the invention is not the case where any additive is added
Under, maintain the bending strength of aluminium silicon carbide material, to the thermal conductivity of gained aluminium silicon carbide material is improved to 250~
280W/mK。
Application publication number is that the Chinese invention patent of CN105924178A discloses a kind of system of aluminum silicon carbide composite material
Preparation Method includes the following steps：By thick silicon-carbide particle and thin silicon-carbide particle mixing, two kinds of silicon-carbide particle gross masses are added
1 ~ 3% aluminium dihydrogen phosphate aqueous solution and 5% water, heating carry out wet mixing to pinch to humidity being 10%, obtain mixture, biphosphate
The mass percent of aluminum water solution is 50%.Mixture is dried, is granulated, it is aging to obtain powder.By in powder packed to mold,
In the forming under the pressure of 10MPa, nearly molding biscuit is formed.It will be sintered after mold jacket encapsulation with biscuit, biscuit forms prefabricated
Part.By the mold jacket encapsulation leaching aluminium equipped with prefabricated component, aluminum silicon carbide composite material is obtained.Paraffin micro emulsion is not added in raw material
Liquid, while the amount of aluminium dihydrogen phosphate is reduced, the gap of biscuit is high, and obtained materials of aluminum volume fraction is big, improves thermal conductivity.The system
Preparation Method simplifies process route, saves cost, improves the thermal conductivity of aluminum silicon carbide composite material.
Currently, the preparation method of aluminum silicon carbide composite material is mostly to form aluminium powder and carborundum powder mixed sintering, or
Aluminium powder is directly melted and is penetrated into foam silicon carbide ceramics, aluminium silicon carbide is evenly dispersed to ask these methods without effectively solving
Topic cannot effectively play aluminum silicon carbide composite material performance, limit also without solving the problems, such as that aluminium and silicon carbide interface combine
The application of aluminum silicon carbide composite material.
Invention content
To solve the above problems, the present invention proposes that a kind of SiC nanowire enhances aluminum silicon carbide composite material and its preparation side
Method gives full play to SiC nanowire toughening and improves the advantage of interface cohesion, improves the performance of aluminum silicon carbide composite material,
The application field of aluminum silicon carbide composite material is widened.
A kind of SiC nanowire enhancing aluminum silicon carbide composite material, by foam silicon carbide ceramics, SiC nanowire, the interfaces BN
Layer, silicon carbide and aluminium alloy composition, it is characterised in that SiC nanowire growth in situ is in foam silicon carbide ceramics, BN boundary layers
Be coated on SiC nanowire and foam silicon carbide ceramics surface, silicon carbide and aluminium alloy filler inside foam silicon carbide ceramics and
Surface layer；The foam silicon carbide ceramics density is 0.3 ~ 0.6g/cm3, porosity is 70 ~ 90%, and hole density is 15 ~ 35PPI；
A diameter of 50 ~ the 200nm of the SiC nanowire, length are 0.5 ~ 3mm；The BN interfacial layer thickness is 0.05 ~ 0.3 μm；Institute
The silicon carbide stated is in granular form, and grain size is 0.5 ~ 1 μm, and purity is 97 ~ 99%.
A kind of preparation method of SiC nanowire enhancing aluminum silicon carbide composite material, it is characterised in that including following sequences
Step：
（1）Foam silicon carbide ceramics are cleaned by ultrasonic with absolute ethyl alcohol, is put into baking oven and dries after cleaning；
（2）Uniform powder precursor is made in Polycarbosilane, ferrocene, activated carbon mixing and ball milling, then by powder precursor
It is put into graphite crucible；
（3）The foam silicon carbide ceramics dried are placed on above graphite crucible, then graphite crucible is put into high temperature sintering furnace
In, 1300 ~ 1500 DEG C are warming up to, mobility Ar is kept the temperature and be passed through, the sic foam pottery of growth in situ SiC nanowire is made
Porcelain；
（4）The foam silicon carbide ceramics of growth in situ SiC nanowire are put into deposition BN boundary layers in chemical vapor deposition stove；
（5）Aluminum alloy granule and silicon-carbide particle are uniformly mixed, the foam silicon carbide ceramics for preparing the interfaces BN are embedded in
In uniformly mixed aluminium alloy/silicon-carbide particle, it is evacuated to 0.01 ~ 10Pa, then is warming up to 700 ~ 1000 DEG C, keeps the temperature 1 ~ 5h,
Obtain SiC nanowire enhancing aluminum silicon carbide composite material.
Advantageous effect of the present invention：（1）Aluminum silicon carbide composite material is enhanced using SiC nanowire, preparation process is simple, the period
It is short, it is easy to accomplish；（2）Due to the effect of the toughened and reinforced of SiC nanowire and improvement interface cohesion, it is compound to improve aluminium silicon carbide
Fracture toughness and shock resistance of material etc.；（3）Uniformly mixed aluminium/carborundum powder is filled in foam silicon carbide ceramics is pre-
In body processed, efficiently solve the problems, such as that aluminium and silicon carbide are evenly dispersed.
Embodiment
A kind of SiC nanowire enhancing aluminum silicon carbide composite material, by foam silicon carbide ceramics, SiC nanowire, the interfaces BN
Layer, silicon carbide and aluminium alloy composition, it is characterised in that SiC nanowire growth in situ is in foam silicon carbide ceramics, BN boundary layers
Be coated on SiC nanowire and foam silicon carbide ceramics surface, silicon carbide and aluminium alloy filler inside foam silicon carbide ceramics and
Surface layer；The foam silicon carbide ceramics density is 0.5g/cm3, porosity 80%, hole density 30PPI；The SiC receives
Rice noodles a diameter of 100nm, length 1mm；The BN interfacial layer thickness is 0.1 μm；The carborundum powder grain size is 0.5 μ
M, purity 99%.
A kind of preparation method of SiC nanowire enhancing aluminum silicon carbide composite material, it is characterised in that including following sequences
Step：
（1）Foam silicon carbide ceramics are cleaned by ultrasonic with absolute ethyl alcohol, is put into baking oven and dries after cleaning；
（2）Uniform powder precursor is made in Polycarbosilane, ferrocene, activated carbon mixing and ball milling, then by powder precursor
It is put into graphite crucible；
（3）The foam silicon carbide ceramics dried are placed on above graphite crucible, then graphite crucible is put into high temperature sintering furnace
In, 1350 DEG C are warming up to, mobility Ar is kept the temperature and be passed through, the foam silicon carbide ceramics of growth in situ SiC nanowire are made；
（4）The foam silicon carbide ceramics of growth in situ SiC nanowire are put into deposition BN boundary layers in chemical vapor deposition stove；
（5）Aluminum alloy granule and silicon-carbide particle are uniformly mixed, the foam silicon carbide ceramics for preparing the interfaces BN are embedded in
In uniformly mixed aluminium alloy/silicon-carbide particle, it is evacuated to 0.1Pa, then is warming up to 750 DEG C, 3h is kept the temperature, obtains SiC nanometers
Line enhances aluminum silicon carbide composite material.
The specific implementation mode of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this
Conceive the change for carrying out unsubstantiality to the present invention, the behavior for invading the scope of protection of the invention should all be belonged to.In every case it is not de-
Content from technical solution of the present invention is simply repaiied to any type of made by above example according to the technical essence of the invention
Change, equivalent variations and remodeling, still falls within the protection domain of technical solution of the present invention.
Claims (2)
1. a kind of SiC nanowire enhances aluminum silicon carbide composite material, by foam silicon carbide ceramics, SiC nanowire, BN boundary layers,
Silicon carbide and aluminium alloy composition, it is characterised in that SiC nanowire growth in situ is in foam silicon carbide ceramics, BN boundary layers cladding
In SiC nanowire and foam silicon carbide ceramics surface, silicon carbide and aluminium alloy filler are inside foam silicon carbide ceramics and surface layer；
The foam silicon carbide ceramics density is 0.3 ~ 0.6g/cm3, porosity is 70 ~ 90%, and hole density is 15 ~ 35PPI；Described
A diameter of 50 ~ the 200nm of SiC nanowire, length are 0.5 ~ 3mm；The BN interfacial layer thickness is 0.05 ~ 0.3 μm；The carbon
SiClx is in granular form, and grain size is 0.5 ~ 1 μm, and purity is 97 ~ 99%.
2. a kind of preparation method of SiC nanowire enhancing aluminum silicon carbide composite material, it is characterised in that include the step of following sequences
Suddenly：
（1）Foam silicon carbide ceramics are cleaned by ultrasonic with absolute ethyl alcohol, is put into baking oven and dries after cleaning；
（2）Uniform powder precursor is made in Polycarbosilane, ferrocene, activated carbon mixing and ball milling, then by powder precursor
It is put into graphite crucible；
（3）The foam silicon carbide ceramics dried are placed on above graphite crucible, then graphite crucible is put into high temperature sintering furnace
In, 1300 ~ 1500 DEG C are warming up to, mobility Ar is kept the temperature and be passed through, the sic foam pottery of growth in situ SiC nanowire is made
Porcelain；
（4）The foam silicon carbide ceramics of growth in situ SiC nanowire are put into deposition BN boundary layers in chemical vapor deposition stove；
（5）Aluminum alloy granule and silicon-carbide particle are uniformly mixed, the foam silicon carbide ceramics for preparing the interfaces BN are embedded in
In uniformly mixed aluminium alloy/silicon-carbide particle, it is evacuated to 0.01 ~ 10Pa, then is warming up to 700 ~ 1000 DEG C, keeps the temperature 1 ~ 5h,
Obtain SiC nanowire enhancing aluminum silicon carbide composite material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518026A (en) * | 2018-11-29 | 2019-03-26 | 苏州宏久航空防热材料科技有限公司 | A kind of SiC nanowire enhancing aluminum silicon carbide composite material and preparation method thereof |
| CN109718603A (en) * | 2019-01-16 | 2019-05-07 | 苏州宏久航空防热材料科技有限公司 | A kind of lamination combined filtration structure |
| CN115679163A (en) * | 2022-11-22 | 2023-02-03 | 山东创新金属科技有限公司 | Aluminum alloy material for automobile anti-collision frame and preparation method thereof |
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| CN108059475A (en) * | 2017-12-08 | 2018-05-22 | 南京航空航天大学 | A kind of carbon nanotubes enhances Cf/ SiC ceramic matrix composite material and preparation method thereof |
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| US5817432A (en) * | 1992-03-17 | 1998-10-06 | The Carborundum Company | Silicon carbide reinforced reaction bonded silicon carbide composite |
| EP1035089A1 (en) * | 1999-03-05 | 2000-09-13 | General Electric Company | Porous body infiltrating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518026A (en) * | 2018-11-29 | 2019-03-26 | 苏州宏久航空防热材料科技有限公司 | A kind of SiC nanowire enhancing aluminum silicon carbide composite material and preparation method thereof |
| CN109718603A (en) * | 2019-01-16 | 2019-05-07 | 苏州宏久航空防热材料科技有限公司 | A kind of lamination combined filtration structure |
| CN109718603B (en) * | 2019-01-16 | 2021-04-02 | 苏州宏久航空防热材料科技有限公司 | Laminated composite filtering structure |
| CN115679163A (en) * | 2022-11-22 | 2023-02-03 | 山东创新金属科技有限公司 | Aluminum alloy material for automobile anti-collision frame and preparation method thereof |
| CN115679163B (en) * | 2022-11-22 | 2023-09-22 | 山东创新金属科技有限公司 | Aluminum alloy material for automobile anti-collision frame and preparation method thereof |
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| Publication number | Publication date |
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| CN108754357B (en) | 2020-06-23 |
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