CN116141774A - Aluminum plate with ceramic fibers and manufacturing method thereof - Google Patents

Aluminum plate with ceramic fibers and manufacturing method thereof Download PDF

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Publication number
CN116141774A
CN116141774A CN202310120689.0A CN202310120689A CN116141774A CN 116141774 A CN116141774 A CN 116141774A CN 202310120689 A CN202310120689 A CN 202310120689A CN 116141774 A CN116141774 A CN 116141774A
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Prior art keywords
aluminum
ceramic fiber
aluminum alloy
ceramic
alloy sheet
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CN202310120689.0A
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Chinese (zh)
Inventor
王平
马在平
裴瑞丰
张洪波
吉广健
陈�峰
顾洁云
顾慧丽
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Jiangsu Lide Aluminium Industry Co ltd
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Jiangsu Lide Aluminium Industry Co ltd
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Priority to CN202310120689.0A priority Critical patent/CN116141774A/en
Publication of CN116141774A publication Critical patent/CN116141774A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
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    • 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
    • C04B35/571—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 obtained from Si-containing polymer precursors or organosilicon monomers
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • C04B35/62272—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres based on non-oxide ceramics
    • C04B35/62277—Fibres based on carbides
    • C04B35/62281—Fibres based on carbides based on silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B41/46—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 organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/4857—Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C04B41/82—Coating or impregnation with organic materials
    • C04B41/83—Macromolecular compounds
    • 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
    • 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
    • C22C47/20—Making alloys containing metallic or non-metallic fibres or filaments by subjecting to pressure and heat an assembly comprising at least one metal layer or sheet and one layer of fibres or filaments
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/105—Ceramic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
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Abstract

The invention relates to an aluminum plate with ceramic fibers and a manufacturing method thereof, belonging to the technical field of mechanical manufacturing, and comprising the following preparation steps: a1, preparing aluminum alloy foil from an aluminum mixed reinforced material; a2, preparing a ceramic fiber with a sheath-core structure; a3, inserting an aluminum alloy material of the fused aluminum-silicon alloy connecting ceramic fiber; a4, laminating and combining the materials. In the technical scheme of the invention, the mechanical properties such as bending strength and elastic modulus and damage tolerance of the ceramic fiber are improved by using the reinforcing material and the ceramic fiber, the molten polymethyl methacrylate is sprayed on the surface of the ceramic fiber, and the molten aluminum-silicon alloy and the polymethylphenylsiloxane are used for connecting the aluminum alloy and the ceramic material, so that the connecting effect of the ceramic fiber is enhanced, and the ceramic fiber has better high-temperature performance and environmental thermal stability.

Description

Aluminum plate with ceramic fibers and manufacturing method thereof
Technical Field
The invention belongs to the technical field of mechanical manufacturing, and particularly relates to an aluminum plate with ceramic fibers and a preparation method thereof.
Background
The aluminum-based alloy has the characteristics of low density, high specific strength, high corrosion resistance, high specific strength, excellent dimensional stability at high temperature and the like, and is widely applied to the fields of engineering, automobiles and aerospace. In the consumption structure of the aluminum plate, the application of the aluminum plate in the building industry and the structural frame accounts for 33.7 percent, and the consumption of the aluminum plate in the transportation and power industry accounts for 64 percent of the consumption of the aluminum plate in China. However, the aluminum alloy has the defects of poor brittle fracture capability, poor damage tolerance, low elastic modulus and the like, so that the aluminum alloy is limited in wider application.
Ceramic fibers are a good material for enhancing the mechanical properties of alloy materials and can provide better strength, rigidity and fatigue resistance to the alloy. Ceramic fibers containing metal or nonmetallic elements are widely used as reinforcing materials, and ceramic fibers with good structures and properties are prepared by means of electron beam irradiation in air, chemical vapor curing of active materials and the like, but most of the technologies have the defects of complex technology, low efficiency, high cost or harm to the environment and the like.
The fiber bundle material is added into the alloy to obtain better plasticity, bending property or other mechanical properties, the placed fiber material often forms cracks at high temperature or directly breaks, and crack paths can gradually extend to damage the whole, so that the structure is not compact, corrosion of corrosion resistance of a product is damaged, the comprehensive performance of the product is reduced, and the requirements of structural design cannot be met, or the service life is reduced.
Disclosure of Invention
The invention aims to provide an aluminum plate with ceramic fibers and a preparation method thereof, wherein a reinforcing material is added to synthesize an aluminum alloy sheet, a sheath-core structure ceramic fiber is added in the middle of the aluminum alloy sheet, a molten aluminum-silicon alloy and polymethylphenylsiloxane are used for connecting the aluminum alloy sheet and the ceramic fibers, and the materials are laminated for multiple times after multiple layers are overlapped to obtain the aluminum plate with the ceramic fibers.
The invention aims to solve the technical problems: the invention solves the problems of the conventional aluminum alloy material, such as easy tearing, edge cracking, poor brittle fracture capability, low elastic modulus, poor damage tolerance and the like, and provides a simple method for adding mechanical properties and other effects to the aluminum alloy by using ceramic fibers.
The aim of the invention can be achieved by the following technical scheme:
the preparation method of the aluminum plate with the ceramic fiber comprises the following specific steps:
a1, preparing an aluminum alloy sheet from an aluminum mixed reinforcing material: heating pure aluminum ingot to 520-540 ℃, adding reinforcing material, mechanically pressurizing to prepare an aluminum sheet primary blank, and cutting to obtain aluminum alloy sheets with the size of 40X 5 mm;
a2, connecting the aluminum alloy sheet with the ceramic fiber with the sheath-core structure through molten aluminum-silicon alloy and polymethylphenylsiloxane, and then laminating and combining: polishing the surface of the aluminum alloy sheet by using sand paper with different granularities, and then placing the aluminum alloy sheet in an acetone solution for ultrasonic cleaning for 20 minutes;
a3, preparing a sheath-core structure ceramic fiber: the polycarbosilane fiber bundles were placed in a vacuum oven and heated to 458K under vacuum atmosphere. After 10 minutes of holding at 458K vacuum, fresh air was vented to the oven. After each state was maintained for 10 minutes, the air and vacuum atmosphere were alternated, and the cycle was alternated 50 times. Subsequently pyrolyzing the surface-cured polycarbosilane fibers at 1273K in a nitrogen atmosphere at a heating rate of 200K/hr;
then, dissolving powdery polymethyl methacrylate in an acetone solution, and stirring the mixture by using a glass rod to uniformly mix the mixture; spraying the uniformly mixed peptizing agent on the surface of the heated polycarbosilane fiber through compressed air, and keeping for 20 minutes to obtain the ceramic fiber with the sheath-core structure;
in the reaction process, the alternating atmosphere process enables the thermal oxidation reaction to only occur on the outer surface layer of the polycarbosilane fiber.
After the sprayed agent volatilizes, the ceramic fiber surfaces are further consolidated, and in order to uniformly and equidistantly arrange the ceramic fibers in the laminated composite, continuous ceramic fibers are woven and uniformly distributed in a programmable fiber winding machine. The axial distance between the monofilaments is 200 mu m, and the weaving width of the ceramic fiber is 40mm;
immersing an aluminum alloy sheet into polymethylphenylsiloxane, melting aluminum-silicon alloy, and alternately laminating the structural components of aluminum alloy foil, molten aluminum-silicon alloy, ceramic fiber cloth, molten aluminum-silicon alloy and aluminum alloy foil in sequence; repeatedly laminating the laminated structure, preheating a hot-pressing sintering furnace for 90 minutes, and then starting sintering for 4 hours in a nitrogen atmosphere to obtain an aluminum alloy plate with a ceramic fiber connected with a molten aluminum-silicon alloy;
in the reaction process, the temperature in the hot pressing furnace is firstly increased to 400 ℃ at the speed of 3 ℃/min and kept for 2 hours, and meanwhile, an external unidirectional vertical mechanical load of 5MPa is applied to the prefabricated composite material between an upper pressure head and a lower pressure head of a hearth. With the change of temperature, the peptizer sprayed on the fiber cloth begins to volatilize gradually, and after the external adhesive force among monofilaments is destroyed, the geometric position of the ceramic fiber can be fixed by mechanical load in the vertical direction.
After 2 hours, the temperature in the furnace is increased to 500 ℃ at the speed of 10 ℃/min, and the pressure in the furnace is increased, so that the structural components of the composite material are metallurgically bonded in a solid phase state at high temperature and high pressure, and the materials are laminated and bonded, thus obtaining the aluminum plate with ceramic fibers.
Further, the reinforcing material is composed of aluminum powder, tiC, tiN and TiO 2 According to the following steps: 1:1:3, and mixing for 30 minutes in a horizontal grinder.
Further, the aluminum-silicon alloy is an aluminum alloy containing 12wt% silicon.
The invention has the beneficial effects that:
(1) In the technical scheme of the invention, the ceramic material is added into the traditional aluminum alloy, and the ceramic material is uniformly distributed in the alloy, so that the brittleness of the aluminum alloy is reduced, and the problem that cracks are easy to generate in the production or transportation process is solved; meanwhile, the fiber woven cloth is dispersed in the alloy, so that the toughness of the aluminum alloy plate is well increased, the mechanical property of the aluminum alloy plate is increased, the abrasion is reduced, and the damage tolerance of the aluminum alloy plate is increased.
(2) In the technical scheme of the invention, the ceramic fiber with the sheath-core structure is used as the reinforcing material of the aluminum alloy plate, and the ceramic material with the sheath-core structure can be subjected to passive oxidation in air, but can be subjected to active oxidation in nitrogen atmosphere; the ceramic fiber surface exposed in the air can generate a thick oxide layer, so that the friction on the surface of the aluminum alloy plate is reduced, and the ceramic fiber wrapped inside by the alloy can maintain good high-temperature mechanical properties; the excellent mechanical property, oxidation resistance, compatibility and thermal stability of the aluminum alloy plate are fully utilized, the skin-core structure is endowed, and polymethyl methacrylate is sprayed on the surface of the aluminum alloy plate, so that the bonding strength with the aluminum alloy plate is improved. Under the condition of high temperature, the fiber bundles of the sheath-core structure can avoid fracture in the alloy from the outermost layer, so as to cause the fracture of the alloy surface.
(3) In the scheme of the invention, molten polymethyl methacrylate is sprayed on the surface of ceramic fiber, and molten aluminum-silicon alloy and polymethylphenylsiloxane are used for connecting the aluminum alloy and the ceramic material, the silicon-aluminum alloy with higher silicon content has low melting point, and the bonding strength with the polymethylphenylsiloxane is high in a molten state. Polymethylphenylsiloxane, which is used as a precursor of the ceramic material, is bonded to the ceramic fibers of the sheath-core structure during the sintering process to form a whole. The silicon aluminum alloy is fused with the aluminum alloy sheet under the conditions of a molten state and high temperature and high pressure so as to enhance the connecting effect of the silicon aluminum alloy sheet and endow the aluminum alloy sheet with better bending strength and thermal conductivity. The ceramic fiber bundles will not debond nor exhibit brittle fracture characteristics when the aluminum alloy is subjected to a load.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the invention, the ceramic fiber with the sheath-core structure is prepared by the following steps:
b1, 140g of polycarbosilane fiber bundles are placed in a vacuum oven and heated to 458K under vacuum atmosphere. After 10 minutes of holding at 458K vacuum, fresh air was vented to the oven. After each state was maintained for 10 minutes, the air and vacuum atmosphere were alternated, and the cycle was alternated 50 times. Subsequently pyrolyzing the surface-cured polycarbosilane fibers at 1273K in a nitrogen atmosphere at a heating rate of 200K/hr;
b2, dissolving powdery polymethyl methacrylate in an acetone solution, and stirring with a glass rod to uniformly mix until the solution is saturated; spraying the uniformly mixed peptizer on the surface of the polycarbosilane fiber through compressed air, keeping for 20 minutes, and further solidifying the surface of the polycarbosilane fiber after the sprayed medicament volatilizes, thus obtaining the ceramic fiber with the sheath-core structure.
In order to uniformly and equidistantly arrange the ceramic fibers of the sheath-core structure in the laminate composite, the continuous ceramic fibers are woven and uniformly distributed in a programmable fiber winding machine. The axial distance between the monofilaments was 200. Mu.m, and the weave width of the ceramic fiber was 40mm.
Example 1
The reinforcing material is prepared by the following steps:
2g of aluminum powder and 1g of TiC, 1g of TiN and 3g of TiO2 powder were mixed in a horizontal mill for 30 minutes using stearic acid to obtain a reinforcing material.
An aluminum sheet with ceramic fibers, comprising the steps of:
1. heating 260g of pure aluminum ingot to 520 ℃, adding 26g of reinforcing material, preparing an aluminum sheet primary blank by mechanical pressurization, and then cutting to obtain aluminum alloy sheets with the size of 40 multiplied by 5 mm;
2. sequentially polishing the surface of an aluminum alloy sheet by using 120-320-mesh sand paper, and then placing the aluminum alloy sheet in an acetone solution for ultrasonic cleaning for 20 minutes;
3. melting the aluminum-silicon alloy, immersing the aluminum alloy sheet into polymethylphenylsiloxane, and alternately laminating the structural components of the aluminum alloy foil, the molten aluminum-silicon alloy, the ceramic fiber cloth, the molten aluminum-silicon alloy and the aluminum alloy foil in sequence;
4. after repeatedly laminating the laminated structure, preheating a hot-pressing sintering furnace for 90 minutes, starting sintering in a nitrogen atmosphere, heating the temperature in the hot-pressing furnace to 400 ℃ at a speed of 3 ℃/min, keeping the temperature for 2 hours, and simultaneously, applying an external unidirectional vertical mechanical load of 5MPa between an upper pressure head and a lower pressure head of a hearth to the prefabricated alternate laminated material. After two hours, the temperature in the furnace was raised to 500℃at a rate of 10℃per minute, and after 4 hours of sintering, the temperature was kept for 24 hours.
And shearing, straightening, calendaring and packaging to obtain the aluminum plate with the ceramic fibers.
Example 2
3g of aluminum powder, 2g of TiC, 2g of TiN and 6g of TiO2 powder are mixed in a horizontal grinder for 30 minutes by using stearic acid to obtain a reinforcing material;
an aluminum sheet with ceramic fibers, comprising the steps of:
1. heating 390g of pure aluminum ingot to 520 ℃, adding 39g of reinforcing material, preparing an aluminum sheet primary blank by mechanical pressurization, and then cutting to obtain aluminum alloy sheets with the size of 40 multiplied by 5 mm;
2. polishing the surface of the aluminum alloy sheet by using sand paper with different granularities, and then placing the aluminum alloy sheet in an acetone solution for ultrasonic cleaning for 20 minutes;
3. melting the aluminum-silicon alloy, immersing the aluminum alloy sheet into polymethylphenylsiloxane, and alternately laminating the structural components of the aluminum alloy foil, the molten aluminum-silicon alloy, the ceramic fiber cloth, the molten aluminum-silicon alloy and the aluminum alloy foil in sequence;
4. after repeatedly laminating the laminated structure, preheating a hot-pressing sintering furnace for 90 minutes, starting sintering in a nitrogen atmosphere, heating the temperature in the hot-pressing furnace to 400 ℃ at a speed of 3 ℃/min, keeping the temperature for 2 hours, and simultaneously, applying an external unidirectional vertical mechanical load of 5MPa between an upper pressure head and a lower pressure head of a hearth to the prefabricated alternate laminated material. After two hours, the temperature in the furnace was raised to 500℃at a rate of 10℃per minute, and after 4 hours of sintering, the temperature was kept for 24 hours.
And shearing, straightening, calendaring and packaging to obtain the aluminum plate with the ceramic fibers.
Example 3
3g of aluminum powder, 2g of TiC, 2g of TiN and 6g of TiO2 powder are mixed in a horizontal grinder for 30 minutes by using stearic acid to obtain a reinforcing material;
an aluminum sheet with ceramic fibers, comprising the steps of:
1. heating 520g of pure aluminum ingot to 520 ℃, adding 39g of reinforcing material, preparing an aluminum sheet primary blank by mechanical pressurization, and then cutting to obtain aluminum alloy sheets with the size of 40 multiplied by 5 mm;
2. polishing the surface of the aluminum alloy sheet by using sand paper with different granularities, and then placing the aluminum alloy sheet in an acetone solution for ultrasonic cleaning for 20 minutes;
3. melting the aluminum-silicon alloy, immersing the aluminum alloy sheet into polymethylphenylsiloxane, and alternately laminating the structural components of the aluminum alloy foil, the molten aluminum-silicon alloy, the ceramic fiber cloth, the molten aluminum-silicon alloy and the aluminum alloy foil in sequence;
4. after repeatedly laminating the laminated structure, preheating a hot-pressing sintering furnace for 90 minutes, starting sintering in a nitrogen atmosphere, heating the temperature in the hot-pressing furnace to 400 ℃ at a speed of 3 ℃/min, keeping the temperature for 2 hours, and simultaneously, applying an external unidirectional vertical mechanical load of 5MPa between an upper pressure head and a lower pressure head of a hearth to the prefabricated alternate laminated material. After two hours, the temperature in the furnace was raised to 500℃at a rate of 10℃per minute, and after 4 hours of sintering, the temperature was kept for 24 hours.
And shearing, straightening, calendaring and packaging to obtain the aluminum plate with the ceramic fibers.
Comparative example 1
The difference between this comparative example and example 1 is that: an untreated pure aluminum plate was used.
Comparative example 2
The comparative example was an aluminum plate with reinforcing material added.
Comparative example 3
This comparative example differs from example 1 in that a pure aluminum plate was used instead of an aluminum alloy using a reinforcing material, and ceramic fibers which were not subjected to modified forging were added.
The aluminum sheets prepared in examples 1-3 and comparative examples 1-3 were now subjected to mechanical tensile testing. The sample was cut into 30mm by 5mm by 3mm geometries. The test was carried out on an electronic universal tester with a mechanical hydraulic servo, the tensile strain rate being set at 0.5mm/min. To test tensile mechanical properties at high temperatures, the resistance furnace attached to the electronic universal tester was heated to a test temperature of 600 ℃ to mount the sample. After this temperature became constant, the sample was held in the oven for 5 minutes and then stretched to complete fracture.
The stress to which the material is subjected at different strain coefficients is recorded, five readings are taken for each sample and averaged, and the test results are shown in table 1 below:
TABLE 1 mechanical tensile testing of aluminum sheets prepared in examples 1-3 and comparative examples 1-3
Figure SMS_1
Figure SMS_2
From the above table, it is known that the use of the sheath-core ceramic fiber can significantly increase the elastic modulus of the aluminum alloy sheet and increase the bending strength and thermal conductivity thereof.
Bending property experiments were now performed on the aluminum sheets prepared in examples 1 to 3 and comparative examples 1 to 3.
The samples were cut to 35mm x 2mm geometry and a three-point bending test was performed to obtain the bending strength of the composite. The span between the supporting points is 20 mm; the constant displacement loading rate was 0.5mm/min. Flexural strength of the different materials was calculated, each sample was tested 5 times and the average of the five results was recorded. The test results are shown in table 2 below:
TABLE 2 bending property experiments of aluminum sheets prepared in examples 1-3 and comparative examples 1-3
Group of Maximum load (N) Supporting point span (mm) Sigma bending strength (MPa)
Example 1 420.03 20 1596.09
Example 2 446.67 20 1659.23
Example 3 439.59 20 1600.21
Comparative example 1 296.42 20 1003.66
Comparative example 2 200.68 20 920.62
Comparative example 3 156.30 20 859.00
From the results of table 2, it is apparent that the use of the molten aluminum-silicon alloy and polymethylphenylsiloxane in combination with polymethyl methacrylate on the surface of the ceramic fiber can enhance the bonding between the aluminum alloy and the ceramic fiber and exhibit good bending properties.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims (7)

1. The preparation method of the aluminum plate with the ceramic fiber is characterized by comprising the following steps of:
a1, preparing an aluminum alloy sheet from an aluminum mixed reinforced material;
a2, preparing a ceramic fiber with a sheath-core structure;
a3, connecting an aluminum alloy sheet with the ceramic fiber with the sheath-core structure through molten aluminum-silicon alloy and polymethylphenylsiloxane, and then laminating and combining to obtain the aluminum plate with the ceramic fiber;
the ceramic fiber with the sheath-core structure is prepared by forming an oxide layer on the surface after high-temperature oxidation and then spraying polymethyl methacrylate.
2. The method for producing an aluminum plate with ceramic fiber according to claim 1, wherein the reinforcing material is composed of aluminum powder, tiC, tiN and TiO 2 According to the following steps: 1:1:3, and mixing for 30 minutes in a horizontal grinder.
3. A method for producing an aluminum plate with ceramic fiber according to claim 1, wherein the aluminum-silicon alloy is an aluminum alloy containing 12wt% silicon.
4. The method for manufacturing an aluminum plate with ceramic fiber according to claim 1, wherein the aluminum alloy sheet is manufactured by the following steps:
heating pure aluminum ingot to 520-540 ℃, adding reinforcing material, mechanically pressurizing to prepare an aluminum sheet primary blank, and cutting to obtain an aluminum alloy sheet.
5. The method for preparing the aluminum plate with the ceramic fiber according to claim 1, wherein the method for preparing the ceramic fiber with the sheath-core structure comprises the following steps:
b1, heating the polycarbosilane fiber bundles to 458K in a vacuum environment, and introducing fresh air after keeping the temperature for 10 minutes; after 10 minutes of air ventilation, alternating with vacuum, and repeating the alternating for 50 times, heating to 1273K in nitrogen atmosphere;
b2, dissolving powdery polymethyl methacrylate in an acetone solution, and stirring the mixture uniformly by using a glass rod to obtain a peptizing agent; spraying the peptizer on the surface of the heated polycarbosilane fiber bundle through compressed air, and keeping for 20 minutes to obtain the ceramic fiber with the sheath-core structure.
6. The method for preparing an aluminum plate with ceramic fiber according to claim 1, wherein the specific steps of connecting aluminum alloy sheet and sheath-core ceramic fiber by melting aluminum-silicon alloy and polymethylphenylsiloxane are as follows:
c1, polishing the surface of an aluminum alloy sheet by using sand paper with different granularity, and then placing the aluminum alloy sheet in an acetone solution for ultrasonic cleaning for 20 minutes;
2, immersing the aluminum alloy sheet into polymethylphenylsiloxane, melting the aluminum-silicon alloy, and alternately laminating the structural components of the aluminum alloy sheet, the molten aluminum-silicon alloy, the ceramic fiber, the molten aluminum-silicon alloy and the aluminum alloy sheet in sequence;
and C3, after repeatedly laminating the laminated structure, preheating the hot-press sintering furnace for 90 minutes, and starting sintering for 4 hours in a nitrogen atmosphere.
7. An aluminum sheet with ceramic fibers produced by the production method according to any one of claims 1 to 6.
CN202310120689.0A 2023-02-16 2023-02-16 Aluminum plate with ceramic fibers and manufacturing method thereof Pending CN116141774A (en)

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