Preparation method of high-strength and high-resistance multi-scale synergistically-reinforced aluminum-based composite material

A technology for strengthening aluminum-based and composite materials, applied in the direction of electrolytic coating, electrophoretic plating, coating, etc., can solve the problems of restricting the application of materials, difficult mass production of aluminum-based composite materials with high strength and high damping performance, and achieve the goal of overcoming The effect of contradictory strength, high damping performance, and high strength

Active Publication Date: 2022-05-10
XIAN TECHNOLOGICAL UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a high-strength and high-resistance multi-scale synergistically reinforced aluminum-matrix composite material preparation method to solve the problem that the existing preparation process is difficult to achieve mass production of high-strength and high-damping performance aluminum-matrix composite materials, which restricts the application of the material The problem

Method used

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  • Preparation method of high-strength and high-resistance multi-scale synergistically-reinforced aluminum-based composite material
  • Preparation method of high-strength and high-resistance multi-scale synergistically-reinforced aluminum-based composite material
  • Preparation method of high-strength and high-resistance multi-scale synergistically-reinforced aluminum-based composite material

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Experimental program
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Embodiment 1

[0027] Embodiment 1: Step 1, electrophoretic deposition of a layer of uneven carbon nanotube coating on the surface of carbon fibers: first, 0.025g of aluminum nitrate nonahydrate was added to 500ml of isopropanol, fully stirred to dissolve it, and then added 0.5 g of carbon nanotubes, oscillate ultrasonically for 40 minutes to evenly disperse the carbon nanotubes; then add the prepared electrophoretic solution into the electrophoresis tank, put the carbon fibers into the electrophoretic solution to electrophoretically deposit carbon nanotubes, connect the carbon fibers to the cathode of the power supply, and graphite electrodes It is connected to the anode of the power supply and adopts a DC power supply. During the electrophoresis process, the temperature of the electrophoretic solution is 25°C, the voltage is 60V, and the electrophoresis time is 40s.

[0028] Step 2, electroplating nickel coating on the carbon fiber surface obtained in step 1: first prepare the electroplatin...

Embodiment 2

[0031] Embodiment 2: Step 1, electrophoretic deposition of a layer of uneven carbon nanotube coating on the surface of carbon fiber: first, 0.015g of aluminum nitrate nonahydrate is added to 500ml of isopropanol, fully stirred to dissolve it, and then add 0.4 g of carbon nanotubes, ultrasonically oscillate for 30 minutes to evenly disperse the carbon nanotubes; then add the prepared electrophoretic solution into the electrophoresis tank, put the carbon fibers into the electrophoretic solution to electrophoretically deposit carbon nanotubes, connect the carbon fibers to the cathode of the power supply, and graphite electrodes It is connected to the anode of the power supply and adopts a DC power supply. During the electrophoresis process, the temperature of the electrophoretic solution is 30°C, the voltage is 90V, and the electrophoresis time is 60s.

[0032] Step 2, electroplating a nickel coating on the surface of the carbon fiber obtained in step 1, first prepare an electropl...

Embodiment 3

[0035] Embodiment 3: Step 1, electrophoretic deposition of a layer of uneven carbon nanotube coating on the surface of carbon fiber: first, 0.04g of aluminum nitrate nonahydrate was added to 500ml of isopropanol, fully stirred to dissolve it, and then added 0.75 g of carbon nanotubes, oscillate ultrasonically for 60 minutes to disperse the carbon nanotubes evenly; then add the prepared electrophoresis solution into the electrophoresis tank, put the carbon fibers into the electrophoresis solution to deposit carbon nanotubes by electrophoresis, connect the carbon fibers to the cathode of the power supply, and graphite electrodes It is connected to the anode of the power supply and adopts a DC power supply. During the electrophoresis process, the temperature of the electrophoretic solution is 15°C, the voltage is 40V, and the electrophoresis time is 30s.

[0036] Step 2, electroplating nickel coating on the carbon fiber surface obtained in step 1: first deploy the electroplating s...

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Abstract

The invention relates to the technical field of composite material preparation, in particular to a preparation method of a high-strength and high-resistance multi-scale synergistically-reinforced aluminum-based composite material. The preparation method comprises the following steps: (1) carrying out electrophoretic deposition on the surface of the carbon fiber to form a non-uniform carbon nanotube coating; (2) electroplating a nickel coating on the surface of the carbon fiber obtained in the step (1); (3) preparing mixed powder of the carbon fiber and aluminum powder; and (4) hot pressed sintering. The reinforcement which is composed of the nano-particles and the micron fibers and has a special structure is prepared, and the reinforcement is applied to preparation of the aluminum-based composite material, so that the aluminum-based composite material has high strength and high damping performance at the same time; the possibility is provided for application of the aluminum-based composite material in a supporting structural member of a space optical system, and large-batch production of the aluminum-based composite material is achieved.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to a method for preparing a high-strength and high-resistance multi-scale synergistically reinforced aluminum-based composite material. Background technique [0002] Aluminum matrix composites have excellent properties such as light weight, high specific strength and specific stiffness, low thermal expansion coefficient, high temperature resistance and good processability, and have broad application prospects in vehicles, aerospace and other fields, especially as space optics The supporting structure of the system. However, a major problem in applying aluminum matrix composites to space optical systems is that the damping performance of aluminum matrix composites is contradictory to its strength. The higher the strength of the material, the lower the damping performance, and vice versa. [0003] For the space optical system, it must first go through the launc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/04C22C47/14C22C49/06C22C49/14C25D13/02C25D13/16C25D5/54C25D3/12C25D7/06C22C101/10C22C121/02
CPCC22C47/04C22C47/14C22C49/06C22C49/14C25D13/02C25D13/16C25D5/54C25D3/12C25D7/0607
Inventor 吕钊钊董晟全胡惟鹏肖泽元聂松马智恩
Owner XIAN TECHNOLOGICAL UNIV
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