Metal ceramic composite material and preparation method thereof

Abstract

The invention relates to the technical field of ceramic preparation, in particular to a metal ceramic composite material and a preparation method thereof.The needed metal ceramic composite material is formed by filling gaps among particles of a ceramic material with a metal material in a liquid state. Gaps among the high-temperature ceramic particles are effectively filled with high-temperature molten metal, so that firm combination of a metal material and a ceramic material can be realized, the metal ceramic composite material which independently exists in a three-dimensional space and is connected with each other is formed, and the whole production process is relatively simple, low in production cost, wear-resistant and corrosion-resistant; the prepared metal ceramic composite material is high in wear resistance and corrosion resistance and high in strength, so that the use effect of the metal ceramic composite material is improved, and the technical problem that the use effect of the metal ceramic composite material is reduced due to the defects of complex production process, high production cost and weak wear resistance and corrosion resistance during preparation of an existing metal ceramic composite material is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic preparation, and in particular to a metal-ceramic composite material and a preparation method thereof. Background Art

[0002] Metal ceramics not only maintain the characteristics of ceramics such as high strength, high hardness, wear resistance, high temperature resistance, oxidation resistance and chemical stability, but also have good metal toughness and plasticity. They are widely used in aerospace, power electronics, energy and transportation and other fields. Most of the existing metal-ceramic composite materials directly bond ceramic materials and metal materials with adhesives, and the bonding effect is not very good, thereby reducing the bonding strength of metal-ceramic composite materials.

[0003] The prior art CN117227272A discloses a metal-ceramic composite material and a preparation method thereof. By spraying alumina particles on one side of a stainless steel plate / aluminum plate and then bonding it to the ceramic plate with an adhesive, the bonding strength between the stainless steel layer / aluminum layer and the adhesive part is increased compared to the conventional method of directly bonding with an adhesive, thereby improving the bonding strength of the overall composite material.

[0004] However, the above-mentioned metal-ceramic composite materials have the disadvantages of complex production process, high production cost, and weak wear resistance and corrosion resistance during preparation, thereby reducing the use effect of the metal-ceramic composite materials. Summary of the invention

[0005] The purpose of the present invention is to provide a metal-ceramic composite material and a preparation method thereof, which solves the technical problem that the existing metal-ceramic composite materials have the disadvantages of complex production process, high production cost, weak wear resistance and corrosion resistance during preparation, thereby reducing the use effect of the metal-ceramic composite materials.

[0006] To achieve the above object, the present invention provides a metal-ceramic composite material, comprising a metal material and a ceramic material, wherein the metal material fills the gaps between the particles of the ceramic material in a liquid state to form the desired metal-ceramic composite material;

[0007] The metal material comprises the following components by weight: 1.5-3.5 parts of silicon, 5-10 parts of magnesium, 1.5-2.5 parts of manganese, 24-30 parts of chromium, 1.8-3.5 parts of nickel and 4.5-8.5 parts of aluminum;

[0008] The ceramic material comprises the following components by weight: 30-50 parts of zirconium dioxide, 5-10 parts of calcium oxide, 2-5 parts of castor oil, 5-8 parts of kaolin and 10-15 parts of anhydrous ethanol.

[0009] The specific weight components of the metal material are: 2.5 parts of silicon, 8.5 parts of magnesium, 2.5 parts of manganese, 28 parts of chromium, 2.5 parts of nickel and 5.2 parts of aluminum.

[0010] The specific weight components of the ceramic material are: 40 parts of zirconium dioxide, 8 parts of calcium oxide, 3 parts of castor oil, 5 parts of kaolin and 12 parts of anhydrous ethanol.

[0011] The present invention also provides a method for preparing a metal-ceramic composite material, comprising the following steps:

[0012] Mixing zirconium dioxide, calcium oxide, castor oil, kaolin and anhydrous ethanol according to a weight ratio, and sieving the ceramic material mixture after mixing to obtain ceramic material powder;

[0013] Silicon, magnesium, manganese, chromium, nickel and aluminum are mixed according to a weight ratio, and after mixing, the mixture of metal materials is sieved to obtain metal material powder;

[0014] Pressing the ceramic material powder into a shape, and blowing gas into the formed blank to gradually harden the blank;

[0015] After hardening, the metal material powder is heated at high temperature, and the heated and melted molten metal is poured into the blanks, so that the molten metal fills the gaps between the blanks;

[0016] After the metal liquid completely fills the gaps between the blanks, the blanks are cooled to room temperature to obtain the desired metal-ceramic composite material.

[0017] The ceramic material mixture is sieved by a screening machine to obtain ceramic material powder with a mesh size of 100-200.

[0018] Wherein, the mixture of metal materials is sieved by a screening machine to obtain metal material powder of 150-250 mesh.

[0019] The molten metal needs to be subjected to a modification treatment before pouring so as to reduce the surface tension of the molten metal and increase the wettability between the molten metal and the blank.

[0020] The present invention provides a metal-ceramic composite material and a preparation method thereof. The metal material is allowed to fill the gaps between the individual particles of the ceramic material in a liquid state to form the desired metal-ceramic composite material with wear resistance, corrosion resistance and high strength. During the preparation process, the gaps between the high-temperature ceramic particles are effectively filled with high-temperature metal liquid. The temperature of the high-temperature ceramic particles is 650-750°C, so that the metal material and the ceramic material can be firmly combined, thereby forming a metal-ceramic composite material that exists independently but is interconnected in a three-dimensional space. The entire production process is relatively simple, the production cost is low, the wear resistance and corrosion resistance are high, and the strength is high, thereby improving the use effect of the metal-ceramic composite material, and solving the technical problem that the existing metal-ceramic composite material has the disadvantages of complex production process, high production cost, weak wear resistance and corrosion resistance during preparation, thereby reducing the use effect of the metal-ceramic composite material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0022] Figure 1 It is a process step diagram of a method for preparing a metal-ceramic composite material according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0024] First embodiment:

[0025] The invention provides a metal-ceramic composite material, comprising a metal material and a ceramic material.

[0026] In this embodiment,

[0027] The metal material fills the gaps between the particles of the ceramic material in a liquid state to form a desired metal-ceramic composite material; the metal material comprises the following components by weight: 1.5-3.5 parts of silicon, 5-10 parts of magnesium, 1.5-2.5 parts of manganese, 24-30 parts of chromium, 1.8-3.5 parts of nickel and 4.5-8.5 parts of aluminum; the ceramic material comprises the following components by weight: 30-50 parts of zirconium dioxide, 5-10 parts of calcium oxide, 2-5 parts of castor oil, 5-8 parts of kaolin and 10-15 parts of anhydrous ethanol.

[0028] Secondly, the specific weight components of the metal material are: 2.5 parts of silicon, 8.5 parts of magnesium, 2.5 parts of manganese, 28 parts of chromium, 2.5 parts of nickel and 5.2 parts of aluminum.

[0029] Meanwhile, the specific weight components of the ceramic material are: 40 parts of zirconium dioxide, 8 parts of calcium oxide, 3 parts of castor oil, 5 parts of kaolin and 12 parts of anhydrous ethanol.

[0030] When using a metal-ceramic composite material of the present embodiment, 2.5 parts of silicon, 8.5 parts of magnesium, 2.5 parts of manganese, 28 parts of chromium, 2.5 parts of nickel and 5.2 parts of aluminum are used as metal raw materials to prepare a metal material, and 40 parts of zirconium dioxide, 8 parts of calcium oxide, 3 parts of castor oil, 5 parts of kaolin and 12 parts of anhydrous ethanol are used as ceramic raw materials to prepare a ceramic material, and the metal material is allowed to fill the gaps between the particles of the ceramic material in a liquid state to form the desired metal-ceramic composite material with wear resistance, corrosion resistance and high strength. During the preparation process, the high-temperature metal liquid is used to fill the gaps between the high-temperature ceramic particles. The gaps are effectively filled, and the temperature of the high-temperature ceramic particles is 650-750°C, so that the metal material and the ceramic material can be firmly combined, thereby forming a metal-ceramic composite material that exists independently but is interconnected in a three-dimensional space. The entire production process is relatively simple, the production cost is low, the wear resistance and corrosion resistance are high, thereby improving the use effect of the metal-ceramic composite material, and solving the technical problem that the existing metal-ceramic composite material has the disadvantages of complex production process, high production cost, weak wear resistance and corrosion resistance during preparation, thereby reducing the use effect of the metal-ceramic composite material.

[0031] Second embodiment:

[0032] Based on the first embodiment, please refer to Figure 1 , Figure 1 1 is a flow chart of a method for preparing a metal-ceramic composite material according to a second embodiment of the present invention. The present invention also provides a method for preparing a metal-ceramic composite material, comprising the following steps:

[0033] S101. Mix zirconium dioxide, calcium oxide, castor oil, kaolin and anhydrous ethanol according to a weight ratio, and after mixing, sieve the ceramic material mixture to obtain ceramic material powder.

[0034] Specifically, zirconium dioxide, calcium oxide, castor oil, kaolin and anhydrous ethanol are mixed in a weight ratio of 40 parts of zirconium dioxide, 8 parts of calcium oxide, 3 parts of castor oil, 5 parts of kaolin and 12 parts of anhydrous ethanol. After mixing, the ceramic material mixture is sieved using a screening machine to obtain a ceramic material powder with a mesh size of 100-200.

[0035] S102. Silicon, magnesium, manganese, chromium, nickel and aluminum are mixed according to a weight ratio, and after mixing, the mixture of metal materials is sieved to obtain metal material powder.

[0036] Specifically, silicon, magnesium, manganese, chromium, nickel and aluminum are mixed in a weight ratio of 2.5 parts of silicon, 8.5 parts of magnesium, 2.5 parts of manganese, 28 parts of chromium, 2.5 parts of nickel and 5.2 parts of aluminum. After mixing, the mixture of metal materials is sieved using a screening machine to obtain a metal material powder of 150-250 mesh.

[0037] S103, pressing the ceramic material powder into a shape, and blowing gas into the formed blank to allow the blank to gradually harden.

[0038] Specifically, the ceramic material powder is pressed into a shape at a molding pressure of 15 MPa, and gas is blown into the formed blank, wherein the gas used is carbon dioxide. By blowing gas into the blank, the blank is gradually hardened.

[0039] S104, after hardening, the metal material powder is heated at high temperature, and the heated and melted molten metal is poured into the blanks, so that the molten metal fills the gaps between the blanks.

[0040] Specifically, after hardening, the metal material powder is heated at a high temperature with a heating rate of 20-35°C / min, heated to 1400-1600°C, and kept warm for 5-15 minutes. While heating at high temperature, the billet is heated at a heating temperature of 650-750°C. After the molten metal is completely melted, the heated and melted molten metal is poured into the billet to allow the molten metal to fill the gaps between the billets. Before pouring, the molten metal is subjected to a modification treatment to reduce the surface tension of the molten metal and increase the wettability between the molten metal and the billet.

[0041] S105, when the molten metal completely fills the gaps between the blanks, the blanks are cooled to room temperature to obtain the desired metal-ceramic composite material.

[0042] Specifically, after the molten metal completely fills the gaps between the blanks, the blanks are cooled to room temperature, thereby obtaining the desired metal-ceramic composite material with wear resistance, corrosion resistance and high strength.

[0043] When using the preparation method of a metal-ceramic composite material of the present embodiment, the metal material is allowed to fill the gaps between the particles of the ceramic material in a liquid state to form the desired metal-ceramic composite material with wear resistance, corrosion resistance and high strength. During the preparation process, the gaps between the high-temperature ceramic particles are effectively filled with high-temperature metal liquid. The temperature of the high-temperature ceramic particles is 650-750°C, so that the metal material and the ceramic material can be firmly combined, thereby forming a metal-ceramic composite material that exists independently but is interconnected in a three-dimensional space. The entire production process is relatively simple, the production cost is low, the wear resistance and corrosion resistance are high, thereby improving the use effect of the metal-ceramic composite material, and solving the technical problem that the existing metal-ceramic composite material has the disadvantages of complex production process, high production cost, weak wear resistance and corrosion resistance during preparation, thereby reducing the use effect of the metal-ceramic composite material.

[0044] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A metal-ceramic composite material, characterized in that: It comprises a metal material and a ceramic material, wherein the metal material fills the gaps between the particles of the ceramic material in a liquid state to form a desired metal-ceramic composite material; The metal material comprises the following components by weight: 1.5-3.5 parts of silicon, 5-10 parts of magnesium, 1.5-2.5 parts of manganese, 24-30 parts of chromium, 1.8-3.5 parts of nickel and 4.5-8.5 parts of aluminum; The ceramic material comprises the following components by weight: 30-50 parts of zirconium dioxide, 5-10 parts of calcium oxide, 2-5 parts of castor oil, 5-8 parts of kaolin and 10-15 parts of anhydrous ethanol.

2. The metal-ceramic composite material according to claim 1, characterized in that: The specific weight components of the metal material are: 2.5 parts of silicon, 8.5 parts of magnesium, 2.5 parts of manganese, 28 parts of chromium, 2.5 parts of nickel and 5.2 parts of aluminum.

3. The metal-ceramic composite material according to claim 1, characterized in that: The specific weight components of the ceramic material are: 40 parts of zirconium dioxide, 8 parts of calcium oxide, 3 parts of castor oil, 5 parts of kaolin and 12 parts of anhydrous ethanol.

4. A method for preparing a metal-ceramic composite material, applied to the metal-ceramic composite material according to any one of claims 1 to 3, characterized in that: The following steps are involved: Mixing zirconium dioxide, calcium oxide, castor oil, kaolin and anhydrous ethanol according to a weight ratio, and sieving the ceramic material mixture after mixing to obtain ceramic material powder; Silicon, magnesium, manganese, chromium, nickel and aluminum are mixed according to a weight ratio, and after mixing, the mixture of metal materials is sieved to obtain metal material powder; Pressing the ceramic material powder into a shape, and blowing gas into the formed blank to gradually harden the blank; After hardening, the metal material powder is heated at high temperature, and the heated and melted molten metal is poured into the blanks, so that the molten metal fills the gaps between the blanks; After the metal liquid completely fills the gaps between the blanks, the blanks are cooled to room temperature to obtain the desired metal-ceramic composite material.

5. The method for preparing the metal-ceramic composite material according to claim 4, characterized in that: The ceramic material mixture is sieved by a screening machine to obtain ceramic material powder with a mesh size of 100-200.

6. The method for preparing the metal-ceramic composite material according to claim 4, characterized in that: The metal material mixture is sieved by a screening machine to obtain metal material powder of 150-250 mesh.

7. The method for preparing the metal-ceramic composite material according to claim 4, characterized in that: The molten metal needs to be modified before pouring to reduce the surface tension of the molten metal and increase the wettability between the molten metal and the blank.

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