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Three-dimensional orthotropic carbon fiber reinforced aluminum-based composite material and preparation method thereof

A technology for reinforcing aluminum matrix and composite materials, which is applied in the field of three-dimensional orthogonal carbon fiber reinforced aluminum matrix composite materials and its preparation, and achieves the effects of good bonding, compact structure and excellent comprehensive performance.

Inactive Publication Date: 2011-07-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the high-rigidity overall frame structure overcomes the problems of segregation and bending of carbon fibers in the process of preparing composite materials

Method used

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  • Three-dimensional orthotropic carbon fiber reinforced aluminum-based composite material and preparation method thereof
  • Three-dimensional orthotropic carbon fiber reinforced aluminum-based composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The warp, weft and Z-direction yarns of the three-dimensional orthogonal carbon fiber reinforcement are all T300. Carbon fiber accounts for about 40% of the volume fraction of the composite. The base is made of pure aluminum. The carbon fiber preheating temperature is 400°C, the pouring temperature is 740°C, the extrusion pressure is 10MPa, and the holding time is 60 seconds. The structure of the three-dimensional orthogonal carbon fiber reinforced aluminum matrix composite is dense, the carbon fiber is well bonded to the matrix, and the carbon fiber is evenly distributed without deviation. Poly and bend. The composite material has a strength of 304MPa along the warp and weft directions.

Embodiment 2

[0017] The warp, weft and Z-direction yarns of the three-dimensional orthogonal carbon fiber reinforcement are all T700. Carbon fiber accounts for about 50% of the volume fraction of the composite material. The substrate is made of aluminum alloy ZL101. The carbon fiber preheating temperature is 500°C, the pouring temperature is 750°C, the extrusion pressure is 30MPa, and the holding time is 60 seconds. The structure of the three-dimensional orthogonal carbon fiber reinforced aluminum matrix composite is dense, the carbon fiber is well bonded to the matrix, and the carbon fiber is evenly distributed without deviation. Gathering and bending phenomena. The composite material has a strength of 590MPa along the warp and weft directions.

Embodiment 3

[0019] The warp yarn of the three-dimensional orthogonal carbon fiber reinforcement is T700, and the weft yarn and Z-direction yarn are T300. Carbon fiber accounts for nearly 60% of the volume fraction of the composite material. The substrate is made of aluminum alloy ZL102. The carbon fiber preheating temperature is 600°C, the pouring temperature is 760°C, the extrusion pressure is 50MPa, and the holding time is 60 seconds. The structure of the three-dimensional orthogonal carbon fiber reinforced aluminum matrix composite is dense, the carbon fiber is well bonded to the matrix, and the carbon fiber is evenly distributed without deviation. Gathering and bending phenomena. The strength of the composite material along the warp direction is 638MPa, and the strength along the weft direction is 358MPa.

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Abstract

The invention relates to a three-dimensional orthotropic carbon fiber reinforced aluminum-based composite material and a preparation method thereof in the technical field of carbon fibers. The material consists of the following components in percentage by volume: 30 to 60 percent of carbon fiber reinforcement and 40 to 70 percent of aluminum or aluminum alloy substrate, wherein the aluminum or aluminum alloy substrate comprises the following components in percentage by mass: 0 to 13 percent of Si, 0 to 11 percent of Mg, 0 to 10 percent of Zn, 0 to 8 percent of Cu, 0 to 2 percent of Mn, 0 to 1 percent of Ti and the balance of Al. The defect when a three-dimensional orthotropic carbon fiber structure is compounded with metal in the prior art is effectively overcome, three-dimensional orthotropic carbon fibers are taken as the reinforcement in the metal-based composite material, and the compounding of the three-dimensional orthotropic carbon fibers and aluminum or an aluminum alloy is realized.

Description

technical field [0001] The invention relates to a composite material in the technical field of carbon fiber materials and its preparation, in particular to a three-dimensional orthogonal carbon fiber reinforced aluminum matrix composite material and a preparation method thereof. Background technique [0002] Carbon fiber reinforced aluminum matrix composites not only have high specific strength, but also have a thermal expansion coefficient close to zero and good dimensional stability, and have been successfully used in satellite brackets, satellite parabolic antennas, and space telescopes. However, the above applications mostly use unidirectional carbon fiber reinforced aluminum matrix composites. Unidirectional structural composite materials have the disadvantages of anisotropy, while laminated structural composite materials also have the disadvantages of easy delamination, low stiffness and strength along the thickness direction, low impact toughness and damage tolerance,...

Claims

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Application Information

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IPC IPC(8): C22C49/06C22C49/14C22C47/08C22C101/10C22C121/00
Inventor 王浩伟周聪夏存娟马乃恒陈东
Owner SHANGHAI JIAO TONG UNIV
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