Metal matrix carbon fiber composite material and method for manufacturing the same, metal matrix carbon fiber product

Abstract

This application relates to a metal-based carbon fiber composite material, its preparation method, and metal-based carbon fiber products. The preparation method includes: mixing chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, and a binder, and then pressing the mixture to prepare a metal-based carbon fiber composite green body; sintering the metal-based carbon fiber composite green body to prepare a matrix; and depositing carbon on the surface of the matrix using chemical vapor deposition to prepare the metal-based carbon fiber composite material. After sintering, the chromium powder, titanium powder, tungsten powder, nickel powder, and carbon fiber produce chromium carbide, titanium carbide, tungsten carbide, and nickel carbide. The chromium powder, titanium powder, tungsten powder, and nickel powder undergo a solid solution reaction to form a carbide alloy, and the carbides and carbide alloys intertwine. Further carbon deposition on the surface of the matrix using chemical vapor deposition is then performed. The interaction of these steps simultaneously improves the compressive strength, flexural strength, and Vickers hardness of the metal-based carbon fiber composite material.

Description

Technical Field

[0001] This application relates to the field of materials, and in particular to a metal-based carbon fiber composite material and its preparation method, as well as metal-based carbon fiber products. Background Technology

[0002] Brake pads, also known as brake discs, are the most critical safety component in a car's braking system, playing a decisive role in the braking effect. Traditional materials for manufacturing brake pads include carbon-ceramic materials, metal materials, ceramic materials, and metal-based carbon composite materials. However, carbon-ceramic materials have a poor appearance, metal materials generate noise during friction and are not conducive to lightweight design, ceramic materials are expensive, and traditional metal-based carbon composite materials have low hardness and strength.

[0003] Therefore, traditional technologies still need improvement. Summary of the Invention

[0004] Based on this, this application provides a metal-based carbon fiber composite material with good compressive strength, flexural strength and Vickers hardness, a method for preparing the same, and metal-based carbon fiber products.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows.

[0006] The first aspect of this application provides a method for preparing a metal-based carbon fiber composite material, comprising the following steps:

[0007] Chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber and binder are mixed and pressed to prepare metal-based carbon fiber composite green bodies.

[0008] The metal-based carbon fiber composite green body is sintered to prepare the matrix;

[0009] Metal-based carbon fiber composites were prepared by carbon deposition on the surface of the substrate using chemical vapor deposition.

[0010] In some embodiments, in the preparation method of the metal-based carbon fiber composite material, the total mass ratio of the chromium powder, the titanium powder, the tungsten powder and the nickel powder to the carbon fiber is 1:(0.2~0.6).

[0011] In some embodiments, in the preparation method of the metal-based carbon fiber composite material, the mass ratio of the chromium powder, the titanium powder, the tungsten powder and the nickel powder is (40~50):(10~20):(10~20):(10~20).

[0012] In some embodiments, in the preparation method of the metal-based carbon fiber composite material, the particle size of the chromium powder, the titanium powder, the tungsten powder and the nickel powder are independently 3 μm to 23 μm.

[0013] In some embodiments, the carbon fiber in the preparation method of the metal-based carbon fiber composite material is carbon fiber powder.

[0014] In some embodiments, the binder in the preparation method of the metal-based carbon fiber composite material includes at least one of PEG-40, machine oil, and ethylene glycol.

[0015] In some embodiments, the sintering temperature in the preparation method of the metal-based carbon fiber composite material is 1250℃~1300℃, and the time is 8h~10h.

[0016] In some embodiments, the carbon source in the chemical vapor deposition method for preparing the metal-based carbon fiber composite material includes C3H6.

[0017] In some embodiments, in the method for preparing metal-based carbon fiber composite materials, the atmosphere of the chemical vapor deposition process includes a carbon source and a dilution gas, wherein the dilution gas includes at least one of nitrogen and argon.

[0018] In some embodiments, the chemical vapor deposition method for preparing metal-based carbon fiber composite materials is carried out at a temperature of 1350°C to 1400°C for a time of 60 to 80 hours.

[0019] In some embodiments, the pressing temperature in the preparation method of the metal-based carbon fiber composite material is 140°C to 150°C, and the pressure is 8 MPa to 10 MPa.

[0020] In some embodiments, the method for preparing metal-based carbon fiber composite materials further includes a step of adding a lubricant in the step of mixing chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber and binder.

[0021] The second aspect of this application provides a metal-based carbon fiber composite material, which is prepared by the preparation method provided in the first aspect.

[0022] The third aspect of this application provides a metal-based carbon fiber article, including the metal-based carbon fiber composite material provided in the second aspect.

[0023] Compared with existing technologies, the preparation method of the metal-based carbon fiber composite material of this application has the following advantages:

[0024] The above-mentioned method for preparing metal-based carbon fiber composites involves mixing chromium powder, titanium powder, tungsten powder, nickel powder, carbon fibers, and a binder, followed by sequential pressing and sintering to prepare a matrix. After sintering, the chromium powder, titanium powder, tungsten powder, nickel powder, and carbon fibers produce chromium carbide, titanium carbide, tungsten carbide, and nickel carbide. Furthermore, the chromium powder, titanium powder, tungsten powder, and nickel powder undergo a solid solution reaction to form a solid solution alloy. The chromium carbide, titanium carbide, tungsten carbide, nickel carbide, and the carbide alloy interweave, overlap, and stack. Carbon deposition is then performed on the surface of the matrix using chemical vapor deposition. The interaction of these steps simultaneously improves the compressive strength, flexural strength, and Vickers hardness of the metal-based carbon fiber composite. Detailed Implementation

[0025] Reference will now be made to detailed embodiments of the present invention, one or more of which are described below. Each example is provided for explanation and not for limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made to the invention without departing from its scope or spirit. For example, features described or illustrated as part of one embodiment may be used in another embodiment to produce further embodiments.

[0026] Therefore, this invention is intended to cover such modifications and variations falling within the scope of the appended claims and their equivalents. Other objects, features, and aspects of the invention are disclosed in or will be apparent from the following detailed description. It will be understood by those skilled in the art that this discussion is merely a description of exemplary embodiments and is not intended to limit the broader aspects of the invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element preceded by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The indefinite articles “a” and “an” preceding an element or component of the invention are not restrictive in terms of the number of elements or components (i.e., the number of times they appear). Therefore, “an” or “an” should be interpreted as including one or at least one, and singular elements or components also include plural forms, unless the quantity clearly refers only to the singular. “A plurality” means at least two, such as two, three, etc., unless otherwise expressly specified.

[0029] The weights of the relevant components mentioned in the embodiments of this invention can refer not only to the specific content of each component, but also to the proportional relationship between the weights of the components. Therefore, any scaling up or down of the content of the relevant components according to the embodiments of this invention is within the scope disclosed in the embodiments of this invention. Specifically, the weights mentioned in the embodiments of this invention can be well-known units of mass in the chemical industry, such as μg, mg, g, and kg.

[0030] Unless otherwise shown or indicated in the operational embodiments, all figures used to represent the amounts, physicochemical properties, etc., of ingredients in the specification and claims are to be understood to be adjusted by the term "about" in all cases. For example, therefore, unless stated to the contrary, the numerical parameters listed in the foregoing specification and appended claims are approximations, and those skilled in the art can appropriately modify these approximations to obtain the desired characteristics by utilizing the teachings disclosed herein. The use of numerical ranges indicated by endpoints includes all numbers within that range and any range within that range; for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, and 5, etc.

[0031] One embodiment of this application provides a method for preparing a metal-based carbon fiber composite material, comprising:

[0032] Step S10: Chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber and binder are mixed and pressed to prepare metal-based carbon fiber composite green body.

[0033] In some of these examples, in step S10, the total mass ratio of chromium powder, titanium powder, tungsten powder, and nickel powder to carbon fiber is 1:(0.2~0.6).

[0034] It is understood that the total mass ratio of chromium powder, titanium powder, tungsten powder and nickel powder to carbon fiber is including but not limited to 1:0.2, 1:0.25, 1:0.3, 1:0.35, 1:0.4, 1:0.45, 1:0.5 and 1:0.6; in some examples, it can be any two of these point values ​​as the end values, and the same applies below.

[0035] Optionally, the total mass ratio of chromium powder, titanium powder, tungsten powder and nickel powder to carbon fiber is 1:(0.2~0.5).

[0036] Furthermore, the total mass ratio of chromium powder, titanium powder, tungsten powder, and nickel powder to carbon fiber is 1:(0.2~0.4).

[0037] In some examples, in step S10, the mass ratio of chromium powder, titanium powder, tungsten powder and nickel powder is (40~50):(5~20):(10~20):(10~20).

[0038] It is understood that in some of these examples, the mass ratio of chromium powder to titanium powder is (40~50):(5~20), the mass ratio of chromium powder to tungsten powder is (40~50):(10~20), the mass ratio of chromium powder to nickel powder is (40~50):(10~20), the mass ratio of chromium powder to tungsten powder is (5~10):(10~20), the mass ratio of titanium powder to nickel powder is (5~20):(10~20), and the mass ratio of tungsten powder to nickel powder is (10~20):(10~20).

[0039] In some of these examples, the mass ratio of chromium powder to titanium powder is (2~5):1.

[0040] It is understood that the mass ratio of chromium powder to titanium powder includes, but is not limited to, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1, and 5:1.

[0041] In some of these examples, the mass ratio of chromium powder to tungsten powder is (2~5):1.

[0042] It is understood that the mass ratio of chromium powder to tungsten powder includes, but is not limited to, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1, and 5:1.

[0043] In some of these examples, the mass ratio of chromium powder to nickel powder is (2~5):1.

[0044] It is understood that the mass ratio of chromium powder to nickel powder includes, but is not limited to, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1, and 5:1.

[0045] In some of these examples, the mass ratio of chromium powder to tungsten powder is (0.25~1):1.

[0046] It is understood that the mass ratio of chromium powder to tungsten powder includes, but is not limited to, 0.25:1, 0.3:1, 0.5:1, 0.6:1, 0.8:1, and 1:1.

[0047] In some of these examples, the mass ratio of titanium powder to nickel powder is (0.5~2):1.

[0048] It is understood that the mass ratio of chromium powder to nickel powder includes, but is not limited to, 0.5:1, 0.6:1, 0.8:1, 1:1, 1.2:1, 1.5:1, and 2:1.

[0049] In some of these examples, the mass ratio of tungsten powder to nickel powder is (0.5~2):1.

[0050] It is understood that the mass ratio of tungsten powder to nickel powder includes, but is not limited to, 0.5:1, 0.75:1, 0.8:1, 1:1, 1.2:1, 1.5:1, 1.8:1, and 2:1.

[0051] In some of these examples, in step S10, the particle sizes of chromium powder, titanium powder, tungsten powder, and nickel powder are independently 3 μm to 23 μm.

[0052] It is understood that the particle sizes of chromium powder, titanium powder, tungsten powder and nickel powder are independently including but not limited to 3 μm, 5 μm, 8 μm, 10 μm, 15 μm, 18 μm, 20 μm, 22 μm and 23 μm.

[0053] In some of these examples, in step S10, the carbon fiber is carbon fiber powder.

[0054] Furthermore, the carbon fiber is passed through a 100-mesh sieve.

[0055] In some of these examples, in step S10, the binder includes at least one of PEG-40, engine oil, and ethylene glycol.

[0056] In some of these examples, step S10 also includes the step of adding lubricant.

[0057] In some of these examples, in step S10, the lubricant includes at least one of stearic acid and paraffin.

[0058] In some of these examples, in step S10, the mixture is mixed in a dry mixer.

[0059] In some of these examples, in step S10, the pressing temperature is 140°C to 150°C and the pressure is 8 MPa to 10 MPa.

[0060] It is understood that the pressing temperature includes, but is not limited to, 140℃, 142℃, 145℃, 148℃, and 150℃; and the pressure includes, but is not limited to, 8 MPa, 9 MPa, and 10 MPa.

[0061] In some examples, after step S10 and before step S20, there is a step of drying the pressed metal-based carbon fiber composite preform.

[0062] Step S20: Sinter the metal-based carbon fiber composite green body to prepare the matrix.

[0063] In some of these examples, in step S20, the sintering temperature is 1250℃~1300℃ and the time is 8 h~10 h.

[0064] It is understood that the sintering temperature includes, but is not limited to, 1250℃, 1260℃, 1270℃, 1280℃, and 1300℃; and the time includes, but is not limited to, 8 h, 9 h, and 10 h.

[0065] In some of these examples, in step S20, sintering is performed in an induction furnace filled with hydrogen.

[0066] In some of these examples, in step S20, argon gas is introduced into the cooling section of the induction furnace.

[0067] It is understandable that argon gas is introduced into the cooling section of the induction furnace to prevent oxidation of the substrate.

[0068] Step S30: Carbon deposition is performed on the surface of the substrate using chemical vapor deposition to prepare a metal-based carbon fiber composite material.

[0069] The above-mentioned method for preparing metal-based carbon fiber composites involves mixing chromium powder, titanium powder, tungsten powder, nickel powder, carbon fibers, and a binder, followed by sequential pressing and sintering to prepare a matrix. After sintering, the chromium powder, titanium powder, tungsten powder, nickel powder, and carbon fibers produce chromium carbide, titanium carbide, tungsten carbide, and nickel carbide. Furthermore, the chromium powder, titanium powder, tungsten powder, and nickel powder undergo a solid solution reaction to form a solid solution alloy. The chromium carbide, titanium carbide, tungsten carbide, nickel carbide, and the carbide alloy interweave, overlap, and stack. Carbon deposition is then performed on the surface of the matrix using chemical vapor deposition. The interaction of these steps simultaneously improves the compressive strength, flexural strength, and Vickers hardness of the metal-based carbon fiber composite.

[0070] The above-mentioned method for preparing metal-based carbon fiber composite materials uses inexpensive and readily available raw materials, has a simple preparation process, and low cost.

[0071] It is understandable that during the carbon deposition process on the substrate surface using chemical vapor deposition, some carbon will penetrate into the substrate and interact with the substrate components, while the carbon that does not penetrate will react with surface metal elements to form a carbide coating.

[0072] In some of these examples, in step S30, the atmosphere for chemical vapor deposition includes a carbon source and a dilution gas.

[0073] In some of these examples, in step S30, the volume ratio of the carbon source to the dilution gas is 1:(1~5).

[0074] It is understood that the volume ratio of carbon source to dilution gas includes, but is not limited to, 1:1, 1:1.5, 1:2, 1:2.5, 1:3, 1:3.5, 1:4, 1:4.5, and 1:5.

[0075] Optionally, the volume ratio of carbon source to dilution gas is 1:(1~2).

[0076] Furthermore, the volume ratio of carbon source to dilution gas is 1:1.5.

[0077] In some of these examples, in step S30, the dilution gas includes at least one of nitrogen and argon.

[0078] In some of these examples, in step S30, the carbon source for chemical vapor deposition includes C3H6.

[0079] In some of these examples, in step S30, the temperature of the chemical vapor deposition process is 1350°C to 1400°C, and the time is 60 h to 80 h.

[0080] It is understood that the temperature for chemical vapor deposition includes, but is not limited to, 1350℃, 1360℃, 1370℃, 1380℃, and 1400℃; and the time includes, but is not limited to, 60 h, 68 h, 70 h, 75 h, and 80 h.

[0081] One embodiment of this application provides a metal-based carbon fiber composite material, which is prepared by the above-described method for preparing metal-based carbon fiber composite materials.

[0082] The aforementioned metal-based carbon fiber composite material has high compressive strength, flexural strength, and Vickers hardness. It also has wear resistance, corrosion resistance, high temperature resistance, strong oxidation resistance, good heat dissipation performance, long service life, light weight, metallic luster, good appearance, and strong applicability to the preparation process.

[0083] One embodiment of this application provides the application of the above-described metal-based carbon fiber composite material in the preparation of metal-based carbon fiber products.

[0084] Another embodiment of this application provides a metal-based carbon fiber article, the material of which includes the above-mentioned metal-based carbon fiber composite material.

[0085] The aforementioned metal-based carbon fiber composite material is used to prepare metal-based carbon fiber products, which can impart high compressive strength, flexural strength and Vickers hardness to the metal-based carbon fiber products.

[0086] In some embodiments, the metal-based carbon fiber articles include, but are not limited to, automotive castings and rail profiles. Further, automotive castings include, but are not limited to, brake pads.

[0087] In some embodiments, the metal-based carbon fiber product may be made of the aforementioned metal-based carbon fiber composite material, that is, the metal-based carbon fiber product may be directly prepared using the aforementioned metal-based carbon fiber composite material. In other embodiments, the metal-based carbon fiber product may be made of other materials in addition to the aforementioned metal-based carbon fiber composite material.

[0088] The present application will be described in further detail below with reference to specific embodiments, but the embodiments of the present application are not limited thereto.

[0089] The carbon fiber powder used in the following examples and comparative examples has been sieved through a 100-mesh sieve.

[0090] Example 1

[0091] (1) According to the mass ratio of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant of 50:10:15:15:25:2:2, chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber powder, ethylene glycol and stearic acid are mixed in a dry mixer and then placed in a mold and pressed at 150°C and 9 MPa to obtain metal-based carbon fiber composite green body;

[0092] (2) The metal-based carbon fiber composite green body was sintered at 1300°C for 10 h in an induction furnace filled with hydrogen. Argon gas was introduced into the cooling section of the induction furnace to obtain the matrix.

[0093] (3) The substrate is placed in a chemical vapor deposition furnace for chemical vapor deposition, wherein the carbon source gas is C3H6, the dilution gas is N2, the volume ratio of carbon source gas to dilution gas is 1:1.5, the surface temperature of the substrate is 1400℃, the deposition time is 80 h, and the substrate is cooled with the furnace after deposition.

[0094] Example 2

[0095] The example is basically the same as Example 1, except that in Example 2, the mass ratio of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant is 45:10:15:15:25:2:2.

[0096] Example 3

[0097] The example is basically the same as Example 1, except that in Example 3, the mass ratio of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant is 40:10:15:15:25:2:2.

[0098] Example 4

[0099] The example is basically the same as Example 1, except that in Example 4, the mass ratio of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant is 45:15:15:15:25:2:2.

[0100] Example 5

[0101] The example is basically the same as Example 1, except that in Example 5, the mass ratio of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant is 40:20:15:15:25:2:2.

[0102] Example 6

[0103] The example is basically the same as Example 1, except that in Example 6, the mass ratio of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant is 50:10:15:15:40:2:2.

[0104] Example 7

[0105] It is basically the same as Example 1, except that in step (1) of Example 7, the pressing temperature is 140°C and the pressure is 8 MPa.

[0106] Example 8

[0107] It is basically the same as Example 1, except that in step (2) of Example 8, the sintering temperature is 1250°C and the time is 8 h.

[0108] Comparative Example 1

[0109] The basic comparison is the same as that of Example 1, except that the nickel powder in Example 1 is omitted, and the mass of the chromium powder in Comparative Example 1 is the sum of the masses of the chromium powder and the nickel powder in Example 1.

[0110] Comparative Example 2

[0111] The comparison is basically the same as Example 1, except that the tungsten powder in Example 1 is omitted in Comparative Example 2, while the mass of chromium powder in Comparative Example 1 is the sum of the masses of chromium powder and tungsten powder in Example 1.

[0112] Comparative Example 3

[0113] The results are basically the same as those in Example 1, except that titanium powder is omitted in Comparative Example 3, while the mass of chromium powder in Comparative Example 1 is the sum of the masses of chromium powder and titanium powder in Example 1.

[0114] Comparative Example 4

[0115] The comparison is basically the same as Example 1, except that the carbon fiber in Example 1 is replaced with an equal mass of graphite in Comparative Example 4.

[0116] Comparative Example 5

[0117] The comparison is basically the same as Example 1, except that the carbon fiber in Example 1 is replaced with an equal mass of carbon black in Comparative Example 5.

[0118] Comparative Example 6

[0119] The comparison is basically the same as Example 1, except that the titanium powder in Example 1 is replaced with an equal mass of molybdenum powder in Comparative Example 6.

[0120] Comparative Example 7

[0121] The comparison is basically the same as Example 1, except that the tungsten powder in Example 1 is replaced with an equal mass of manganese powder in Comparative Example 7.

[0122] Comparative Example 8

[0123] (1) According to the mass ratio of chromium, titanium, tungsten, nickel, carbon fiber, binder and lubricant of 50:10:15:15:25:2:2, chromium oxide, titanium oxide, tungsten oxide, nickel oxide, carbon fiber powder, ethylene glycol and stearic acid are mixed in a dry mixer and then placed in a mold and pressed at 150°C and 9 MPa to obtain metal-based carbon fiber composite green body;

[0124] (2) The metal-based carbon fiber composite green body was sintered at 1300°C for 10 h in an induction furnace filled with hydrogen. Argon gas was introduced into the cooling section of the induction furnace to obtain the matrix.

[0125] (3) The matrix is ​​placed in a chemical vapor deposition furnace for chemical vapor deposition, wherein the carbon source gas is C3H6, the dilution gas is N2, the volume ratio of carbon source gas to dilution gas is 1:1.5, the surface temperature of the matrix is ​​1400℃, the deposition time is 80 h, and after the deposition is completed, the matrix is ​​cooled with the furnace to obtain a metal-based carbon fiber composite material.

[0126] Comparative Example 9

[0127] The results are basically the same as in Example 1, except that step (3) is omitted, i.e., Comparative Example 9 yields a matrix of chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, binder and lubricant.

[0128] The proportions of raw materials in each embodiment and comparative example are shown in Table 1.

[0129] Table 1

[0130]

[0131] Wherein, m1:m2 refers to the total mass ratio of chromium powder, titanium powder, tungsten powder and nickel powder to the mass ratio of carbon fiber, and m3:m4 refers to the mass ratio of chromium powder to titanium powder.

[0132] The properties of the metal-based carbon fiber composites prepared in each embodiment and comparative example were tested, with reference to the following standards:

[0133] Density: GB / T19076-2022, Compressive strength: GB / T19076-2022, Flexural strength: GB / T19076-2022, Vickers hardness: GB / T19076-2022; Test results are shown in Table 2.

[0134] Table 2

[0135]

[0136] As shown in Table 2, compared with the comparative example, the metal-based carbon fiber composite materials prepared in each example have higher density, compressive strength, flexural strength and Vickers hardness. Among them, the metal-based carbon fiber composite material prepared in Example 1 has better overall performance in terms of density, compressive strength, flexural strength and Vickers hardness.

[0137] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0138] The embodiments described above are merely illustrative of several implementation methods of this application, intended to facilitate a detailed understanding of the technical solutions of this application, but should not be construed as limiting the scope of protection of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. It should be understood that technical solutions obtained by those skilled in the art based on the technical solutions provided in this application through logical analysis, reasoning, or limited experimentation are all within the scope of protection of the appended claims. Therefore, the scope of protection of this patent application should be determined by the content of the appended claims, and the specification can be used to interpret the content of the claims.

Claims

1. A method for producing a metal matrix carbon fiber composite material, characterized by, Includes the following steps: Chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber, and binder are mixed and pressed to prepare a metal-based carbon fiber composite green body; the total mass ratio of chromium powder, titanium powder, tungsten powder, and nickel powder to the mass ratio of carbon fiber is 1:(0.2~0.6), and the mass ratio of chromium powder, titanium powder, tungsten powder, and nickel powder to nickel powder is (40~50):(5~20):(10~20):(10~20). The metal-based carbon fiber composite green body is sintered to prepare the matrix; the sintering temperature is 1250℃~1300℃. Metal-based carbon fiber composites were prepared by carbon deposition on the surface of the substrate using chemical vapor deposition.

2. The production method according to claim 1, wherein The preparation method satisfies at least one of the following features (1) to (2): (1) The total mass ratio of the chromium powder, the titanium powder, the tungsten powder and the nickel powder to the carbon fiber is 1:(0.2~0.5); (2) The mass ratio of the chromium powder to the titanium powder is (2~5):

1.

3. The production method according to claim 1, wherein The preparation method satisfies at least one of the following features (1) to (2): (1) The particle size of the chromium powder, the titanium powder, the tungsten powder and the nickel powder is 3 μm to 23 μm, respectively; (2) The carbon fiber is carbon fiber powder.

4. The production method according to claim 1, wherein The binder includes at least one of PEG-40, engine oil, and ethylene glycol.

5. The production method according to any one of claims 1 to 4, wherein The sintering time is 8 h to 10 h.

6. The production method according to any one of claims 1 to 4, wherein The preparation method satisfies at least one of the following features (1) to (3): (1) The carbon source for the chemical vapor deposition method includes C3H6; (2) The atmosphere of the chemical vapor deposition method includes a carbon source and a dilution gas, wherein the dilution gas includes at least one of nitrogen and argon; (3) The temperature of the chemical vapor deposition method is 1350℃~1400℃ and the time is 60 h~80 h.

7. The production method according to any one of claims 1 to 4, wherein The pressing temperature is 140℃~150℃, and the pressure is 8 MPa~10 MPa.

8. The preparation method according to any one of claims 1 to 4, characterized in that, The step of mixing chromium powder, titanium powder, tungsten powder, nickel powder, carbon fiber and binder also includes the step of adding a lubricant.

9. A metal matrix carbon fiber composite material, characterized by, It is prepared by the preparation method according to any one of claims 1 to 8.

10. A metal-matrix carbon-fiber article, characterized by, Including the metal-based carbon fiber composite material as described in claim 9.

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