CN111099897A - Silicon carbide composite material and preparation method thereof - Google Patents
Silicon carbide composite material and preparation method thereof Download PDFInfo
- Publication number
- CN111099897A CN111099897A CN201911390538.7A CN201911390538A CN111099897A CN 111099897 A CN111099897 A CN 111099897A CN 201911390538 A CN201911390538 A CN 201911390538A CN 111099897 A CN111099897 A CN 111099897A
- Authority
- CN
- China
- Prior art keywords
- silicon carbide
- powder
- composite material
- binder
- carbide composite
- 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
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/401—Alkaline earth metals
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/402—Aluminium
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Products (AREA)
Abstract
The invention belongs to the technical field of silicon carbide materials, and discloses a silicon carbide composite material and a preparation method thereof, wherein the silicon carbide composite material comprises the following raw materials in percentage by weight: 70-80% of silicon carbide powder, 3-15% of metal powder, 1-5% of graphene, 2-10% of binder and 10-20% of water; the method comprises the following steps: putting silicon carbide powder, metal powder and graphene into a powder mixer, mixing and ball-milling; mixing the binder with water to obtain a mixed binder; adding the mixed binder into the mixed powder, mixing, and then placing the mixture into a hydraulic press to obtain a blank; and placing the blank body in a non-oxidizing atmosphere sintering furnace for calcining, and cooling to obtain the silicon carbide composite material. The composite material has the advantages of low sintering temperature, energy conservation, simple production process, low production cost, long service life, high compressive strength, good thermal shock resistance, good oxidation resistance and the like, and has wide economic and social values.
Description
Technical Field
The invention belongs to the technical field of silicon carbide materials, and relates to a silicon carbide composite material and a preparation method thereof.
Background
Silicon carbide is an important semiconductor material, has high thermal conductivity, small thermal expansion coefficient, high hardness, high temperature stability, good wear resistance and chemical corrosion resistance, and can be used in severe environment. The silicon carbide ceramic has the characteristics of high temperature resistance, high hardness, wear resistance, low thermal expansion coefficient, high thermal conductivity, chemical corrosion resistance, dielectric property, wave transmission and the like, is an ideal high-temperature structural material, and has wide application prospects in the fields of aerospace, machinery, electronics and the like. However, since silicon carbide is a stable compound with strong covalent bond bonding, the thermal diffusion coefficient is low, sintering densification is difficult, and meanwhile, silicon carbide ceramics have the defects of large brittleness, poor high-temperature oxidation resistance, easy generation of cracks, short service life and the like, so that the application of the silicon carbide ceramics under the high-temperature condition is limited.
However, the existing silicon carbide composite material needs to be sintered during preparation, the sintering effects of the materials at different temperatures are different, so that the preparation quality of the material is easily reduced, and meanwhile, the prepared silicon carbide composite material lacks certain high temperature resistance, so that the silicon carbide composite material is difficult to adapt to normal operation in a high-temperature environment.
Disclosure of Invention
The invention aims to overcome the defects and provides a silicon carbide composite material with high toughness, high oxidation resistance and high temperature stability and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a silicon carbide composite material comprises the following raw materials in percentage by weight: 70-80% of silicon carbide powder, 3-15% of metal powder, 1-5% of graphene, 2-10% of binder and 10-20% of water.
Preferably, the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 μm and a second group of silicon carbide powder with the grain diameter of 5-50 μm.
Preferably, the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 2-3.
Preferably, the metal powder is any one or a combination of two of aluminum powder and magnesium powder.
Preferably, the binder consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 2-3: 1.
Another object of the present invention is to provide a method for preparing a silicon carbide composite material, comprising the steps of:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; stirring in a ball mill for 1-2 h;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 0.5-2h to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press for forming treatment to obtain a blank;
(5) and (5) placing the blank obtained in the step (4) in a non-oxidizing atmosphere sintering furnace, calcining at the temperature of 700-900 ℃, cooling to room temperature along with the furnace after calcining for 1-3h, and thus obtaining the silicon carbide composite material.
Preferably, the ball milling rotation speed in the step (1) is 1200-1600 r/min.
Preferably, the molding pressure in the step (4) is 80-120 MPa.
Compared with the prior art, the invention has the beneficial effects that:
(1) the composite material is prepared by taking silicon carbide, metal powder and graphene as main raw materials and sintering, and has the advantages of low sintering temperature, energy conservation, simple production process and low production cost; the addition of the metal powder enables the material to react in situ to generate non-oxide in the high-temperature use process, the non-oxide combines the silicon carbide and the graphene together to form the oxide and non-oxide composite material, so that the material has the advantages of long service life, high compressive strength, good thermal shock resistance, good oxidation resistance and the like, and has wide economic and social values.
(2) The adhesive comprises polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane, can form a cross-linked network structure after being dissolved, improves the adhesive property among silicon carbide powder, graphene powder and metal, has a thickening effect, avoids powder agglomeration, enables the powder to have better fluidity in the dry pressing forming process, is easy to form, and avoids cracks.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A silicon carbide composite material comprises the following raw materials in percentage by weight: 70% of silicon carbide powder, 7% of aluminum powder, 1% of graphene, 2% of binder and 20% of water; the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 2; the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 2; the adhesive consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 2: 1.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing the mixture in a ball mill, and stirring the mixture for 2 hours at 1200 r/min;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 0.5h to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 80Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 700 ℃, cooling to room temperature along with the furnace after calcining for 3 hours, and thus obtaining the silicon carbide composite material.
Example 2
A silicon carbide composite material comprises the following raw materials in percentage by weight: 75% of silicon carbide powder, 3% of magnesium powder, 2% of graphene, 10% of binder and 10% of water; the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 3; the adhesive consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 3: 1.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing in a ball mill, and stirring at 1400r/min for 1.5 h;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 1h to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 100Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 800 ℃, cooling to room temperature along with the furnace after calcining for 2 hours, and thus obtaining the silicon carbide composite material.
Example 3
A silicon carbide composite material comprises the following raw materials in percentage by weight: 80% of silicon carbide powder, 3% of aluminum powder, 5% of graphene, 2% of binder and 10% of water; the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 2; the adhesive consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 3: 1.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing the mixture in a ball mill, and stirring the mixture for 1h at 1600 r/min;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 2 hours to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 120Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 900 ℃ for 1h, and cooling to room temperature along with the furnace to obtain the silicon carbide composite material.
Example 4
A silicon carbide composite material comprises the following raw materials in percentage by weight: 70% of silicon carbide powder, 15% of magnesium powder, 1% of graphene, 4% of binder and 10% of water; the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 3; the adhesive consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 3: 1.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing the mixture in a ball mill, and stirring the mixture for 1h at 1500 r/min;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 2 hours to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 120Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 800 ℃, cooling to room temperature along with the furnace after calcining for 2 hours, and thus obtaining the silicon carbide composite material.
Comparative example 1
A silicon carbide composite material comprises the following raw materials in percentage by weight: 80% of silicon carbide powder, 8% of magnesium powder, 2% of binder and 10% of water; the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 3; the adhesive consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 3: 1.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing the mixture in a ball mill, and stirring the mixture for 1h at 1600 r/min;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 2 hours to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 120Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 900 ℃ for 1h, and cooling to room temperature along with the furnace to obtain the silicon carbide composite material.
Comparative example 2
A silicon carbide composite material comprises the following raw materials in percentage by weight: 80% of silicon carbide powder, 8% of graphene, 2% of binder and 10% of water; the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 3; the adhesive consists of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 3: 1.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing the mixture in a ball mill, and stirring the mixture for 1h at 1600 r/min;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 2 hours to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 120Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 900 ℃ for 1h, and cooling to room temperature along with the furnace to obtain the silicon carbide composite material.
Comparative example 3
A silicon carbide composite material comprises the following raw materials in percentage by weight: 80% of silicon carbide powder, 3% of magnesium powder, 5% of graphene, 2% of binder and 10% of water; wherein the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m, and the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 2-3; the binder is polyvinyl alcohol.
A preparation method of a silicon carbide composite material comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; placing the mixture in a ball mill, and stirring the mixture for 1h at 1600 r/min;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 2 hours to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press, and carrying out molding treatment under 120Mpa to obtain a blank;
(5) and (4) placing the blank obtained in the step (4) into a non-oxidizing atmosphere sintering furnace, calcining at 900 ℃ for 1h, and cooling to room temperature along with the furnace to obtain the silicon carbide composite material.
The silicon carbide composite materials prepared in examples 1 to 4 and comparative examples 1 to 3 of the present invention were tested for flexural strength, fracture toughness and thermal conductivity, and the specific results are shown in table 1.
| Numbering | Flexural strength (MPa) | Fracture toughness (MPa. m)1/2) | Coefficient of thermal conductivity (W/m.k) |
| Example 1 | 524 | 4.53 | 241.5 |
| Example 2 | 531 | 4.73 | 243.2 |
| Example 3 | 526 | 4.51 | 240.6 |
| Example 4 | 528 | 4.47 | 240.6 |
| Comparative example 1 | 436 | 3.48 | 176.2 |
| Comparative example 2 | 425 | 3.45 | 174.5 |
| Comparative example 3 | 445 | 3.62 | 18.2 |
The foregoing is considered as illustrative of the preferred embodiments of the invention, but is made merely for the purpose of providing an understanding of the principles of the embodiments; meanwhile, for a person skilled in the art, according to the present embodiment, there may be a change in the specific implementation and application scope, and in summary, the present disclosure should not be construed as a limitation to the present invention.
Claims (8)
1. A silicon carbide composite material characterized by: comprises the following raw materials in percentage by weight: 70-80% of silicon carbide powder, 3-15% of metal powder, 1-5% of graphene, 2-10% of binder and 10-20% of water.
2. The silicon carbide composite material of claim 1, wherein: the silicon carbide powder consists of a first group of silicon carbide powder with the grain diameter of 50-100 mu m and a second group of silicon carbide powder with the grain diameter of 5-50 mu m.
3. The silicon carbide composite material of claim 1, wherein: the weight ratio of the first group of silicon carbide powder to the second group of silicon carbide powder is 1: 2-3.
4. The silicon carbide composite material of claim 1, wherein: the metal powder is any one or the combination of two of aluminum powder and magnesium powder.
5. The silicon carbide composite material of claim 1, wherein: the adhesive is composed of polyvinyl alcohol and phenyl tri (dimethylsiloxy) silane according to the mass ratio of 2-3: 1.
6. A method for producing a silicon carbide composite material as set forth in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
(1) weighing silicon carbide powder, metal powder and graphene according to the weight parts, and uniformly mixing in a powder mixer to obtain mixed powder; stirring in a ball mill for 1-2 h;
(2) weighing the binder according to the parts by weight, and dissolving the binder in water to obtain a mixed binder;
(3) adding the mixed binder obtained in the step (2) into the mixed powder obtained in the step (1), and mixing for 0.5-2h to obtain a mixture;
(4) placing the mixture obtained in the step (3) in a hydraulic press for forming treatment to obtain a blank;
(5) and (5) placing the blank obtained in the step (4) in a non-oxidizing atmosphere sintering furnace, calcining at the temperature of 700-900 ℃, cooling to room temperature along with the furnace after calcining for 1-3h, and thus obtaining the silicon carbide composite material.
7. The method for producing a silicon carbide composite material according to claim 6, characterized in that: the ball milling rotating speed in the step (1) is 1200-1600 r/min.
8. The method for producing a silicon carbide composite material according to claim 6, characterized in that: and (4) forming and pressing the mixture to 80-120 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390538.7A CN111099897A (en) | 2019-12-30 | 2019-12-30 | Silicon carbide composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390538.7A CN111099897A (en) | 2019-12-30 | 2019-12-30 | Silicon carbide composite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111099897A true CN111099897A (en) | 2020-05-05 |
Family
ID=70424942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390538.7A Pending CN111099897A (en) | 2019-12-30 | 2019-12-30 | Silicon carbide composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111099897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028075A (en) * | 2020-09-03 | 2020-12-04 | 天能帅福得能源股份有限公司 | Preparation method of nano SiC used as lithium ion battery cathode material |
| CN115958195A (en) * | 2022-12-30 | 2023-04-14 | 常州瑞赛激光技术有限公司 | High-temperature-resistant high-toughness mixed silicon carbide powder for glass pressing mold and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926312A (en) * | 2015-06-29 | 2015-09-23 | 莱芜亚赛陶瓷技术有限公司 | High-thermal-conductivity pressurelessly-sintered silicon carbide ceramic material and preparation method thereof |
| CN108249924A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | A kind of silicon carbide ceramics and preparation method thereof and Al-SiC composite materials |
| CN108675780A (en) * | 2018-06-11 | 2018-10-19 | 郑州大学 | A kind of metal composite mullite silicon carbide ceramic composite and preparation method thereof |
| CN110451970A (en) * | 2019-05-21 | 2019-11-15 | 湖南太子新材料科技有限公司 | A kind of preparation method of high-purity carborundum product |
| CN110451971A (en) * | 2019-05-21 | 2019-11-15 | 湖南太子新材料科技有限公司 | A kind of preparation method of corrosion-and high-temp-resistant silicon carbide articles |
-
2019
- 2019-12-30 CN CN201911390538.7A patent/CN111099897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926312A (en) * | 2015-06-29 | 2015-09-23 | 莱芜亚赛陶瓷技术有限公司 | High-thermal-conductivity pressurelessly-sintered silicon carbide ceramic material and preparation method thereof |
| CN108249924A (en) * | 2016-12-29 | 2018-07-06 | 比亚迪股份有限公司 | A kind of silicon carbide ceramics and preparation method thereof and Al-SiC composite materials |
| CN108675780A (en) * | 2018-06-11 | 2018-10-19 | 郑州大学 | A kind of metal composite mullite silicon carbide ceramic composite and preparation method thereof |
| CN110451970A (en) * | 2019-05-21 | 2019-11-15 | 湖南太子新材料科技有限公司 | A kind of preparation method of high-purity carborundum product |
| CN110451971A (en) * | 2019-05-21 | 2019-11-15 | 湖南太子新材料科技有限公司 | A kind of preparation method of corrosion-and high-temp-resistant silicon carbide articles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028075A (en) * | 2020-09-03 | 2020-12-04 | 天能帅福得能源股份有限公司 | Preparation method of nano SiC used as lithium ion battery cathode material |
| CN115958195A (en) * | 2022-12-30 | 2023-04-14 | 常州瑞赛激光技术有限公司 | High-temperature-resistant high-toughness mixed silicon carbide powder for glass pressing mold and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107721433B (en) | Boron nitride complex phase ceramic and sintering method and application thereof | |
| CN113831136B (en) | Solid-phase sintered silicon carbide product and preparation method thereof | |
| CN106904977B (en) | Preparation of surface hard and core tough Si by two-step sintering method3N4Method for producing ceramic material | |
| CN110818428B (en) | Preparation method of eutectic reinforced toughened silicon nitride ceramic | |
| CN112851388A (en) | Silicon carbide ceramic connecting piece and connecting method and application thereof | |
| CN111099897A (en) | Silicon carbide composite material and preparation method thereof | |
| CN108249924B (en) | Silicon carbide ceramic, preparation method thereof and Al-SiC composite material | |
| CN110759735A (en) | Boron carbide ceramic composite material and preparation method thereof | |
| CN113105252A (en) | Sintering aid for preparing silicon nitride ceramic, application of sintering aid and preparation method of silicon nitride ceramic | |
| CN108863396B (en) | Silicon nitride-based continuous functional gradient ceramic ball and preparation method and application thereof | |
| CN102731095A (en) | SiC (silicon carbide)-AlN (aluminium nitride) ceramic composite material with high thermal conductivity and preparation method of composite material | |
| CN114920575B (en) | High-performance ceramic connecting piece and preparation method and application thereof | |
| CN115636671A (en) | High-strength low-temperature sintered porous ceramic based on layered silicon carbide and preparation method thereof | |
| CN101734920B (en) | Titanium nitride porous ceramics and preparation method thereof | |
| CN109336562B (en) | Preparation method of alumina-based ceramic composite material | |
| CN113880557A (en) | AL2O3-cBN-based ceramic cutting tool material and method for producing the same | |
| CN108503370A (en) | A kind of single-phase silicon nitride ceramics and its SPS preparation processes | |
| CN117088691A (en) | Forming process of composite brake pad | |
| CN108675780B (en) | Metal composite mullite-silicon carbide ceramic composite material and preparation method thereof | |
| CN102992776B (en) | Preparation method of h-BN/VC machinable ceramic | |
| CN114516756B (en) | Silicon carbide composite ceramic material and preparation method and application thereof | |
| CN111423235B (en) | Environment-friendly high-density silicon carbide ceramic heat exchange tube, production method and application thereof in heat exchanger | |
| CN111196724A (en) | Modified silicon carbide and preparation method thereof | |
| CN116143523B (en) | Pressureless sintered silicon carbide blank intermediate, silicon carbide ceramic and preparation method | |
| CN102976761A (en) | Preparation method of h-BN (hexagonal boron nitride)/ZrC machinable ceramics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20200505 |